RM3660EC _51 Engine / Hybrid System _080774 STOP AND START _0393362 STOP AND START SYSTEM J

STOP AND START STOP AND START SYSTEM Starter Signal Circuit

DESCRIPTION

By using the starter circuit, the engine stop and start ECU can activates the ST relay to operate the starter assembly.

WIRING DIAGRAM

0.083,0.052 2.583,0.406 2.5,0.354 12 false w/ Smart Entry and Start System: 0.438,1.01 0.99,1.271 0.552,0.26 10 false J/B-AM 0.271,1.99 0.729,2.188 0.458,0.198 10 false J/B-B 1.823,3.146 2.281,3.344 0.458,0.198 10 false AM2 1.854,3.521 5.063,3.802 3.208,0.281 10 false Driver Side Junction Block Assembly 2.708,2.635 3.479,2.854 0.771,0.219 10 false IG2-NO. 2 3.333,2.146 4.333,2.396 1,0.25 10 false ECU-IG2 NO. 3 3.375,1.01 4.49,1.375 1.115,0.365 10 false ECU-IG1 NO. 2 2.75,1.51 3.521,1.729 0.771,0.219 10 false IG1-NO. 1 0.885,4.354 2.042,4.615 1.156,0.26 10 false EFI-MAIN NO. 1 4.521,4.354 5.677,4.615 1.156,0.26 10 false EFI NO. 2 2.646,4.875 3.802,5.135 1.156,0.26 10 false EFI-MAIN 2.667,6.104 3.823,6.365 1.156,0.26 10 false IG2 NO. 1 5.531,0.875 6.365,1.094 0.833,0.219 10 false I58 5.531,2 6.365,2.219 0.833,0.219 10 false I58 5.458,4.229 6.292,4.448 0.833,0.219 10 false A124 5.458,7.167 6.292,7.385 0.833,0.219 10 false A124 1.344,8.167 4.25,8.375 2.906,0.208 10 false Certification ECU (Smart Key ECU Assembly) 5.885,8.073 6.958,8.427 1.073,0.354 10 false Engine Stop and Start ECU 0.146,8.51 0.5,8.74 0.354,0.229 10 false F 5.458,5.438 6.615,5.698 1.156,0.26 10 false A 4.458,4.573 5.615,4.833 1.156,0.26 10 false B 2.094,7.156 3.25,7.417 1.156,0.26 10 false I1 2.115,7.833 3.271,8.094 1.156,0.26 10 false I1 2.479,7.167 3.635,7.427 1.156,0.26 10 false IG1D 2.479,7.844 3.635,8.104 1.156,0.26 10 false +B 3.135,7.167 4.292,7.427 1.156,0.26 10 false STAR 3.229,7.844 4.385,8.104 1.156,0.26 10 false STA 3.656,7.167 4.813,7.427 1.156,0.26 10 false O62 3.667,7.823 4.823,8.083 1.156,0.26 10 false O62 2.073,6.958 3.229,7.219 1.156,0.26 10 false 15 2.125,7.635 3.281,7.896 1.156,0.26 10 false 3 3.74,6.969 4.896,7.229 1.156,0.26 10 false 2 3.729,7.646 4.885,7.906 1.156,0.26 10 false 1 4.698,8.448 5.854,8.708 1.156,0.26 10 false D 4.302,8.448 5.458,8.708 1.156,0.26 10 false C 5.094,8.448 6.25,8.708 1.156,0.26 10 false E 5.927,0.885 6.76,1.104 0.833,0.219 10 false IG1 5.938,1.99 6.771,2.208 0.833,0.219 10 false IG2 5.927,4.219 6.76,4.438 0.833,0.219 10 false +B 5.927,7.156 6.76,7.375 0.833,0.219 10 false CLL 5.49,6.958 6.323,7.177 0.833,0.219 10 false 17 5.552,4.021 6.385,4.24 0.833,0.219 10 false 1 5.51,1.802 6.344,2.021 0.833,0.219 10 false 18 5.542,0.677 6.375,0.896 0.833,0.219 10 false 21 1.156,0.854 1.615,1.052 0.458,0.198 10 false 4D 1.146,1.625 1.604,1.823 0.458,0.198 10 false 4C 1.156,2.354 1.615,2.552 0.458,0.198 10 false 4E 1.156,3.021 1.615,3.219 0.458,0.198 10 false 4E 4.552,2.99 5.01,3.188 0.458,0.198 10 false 4F 4.552,2 5.01,2.198 0.458,0.198 10 false 4F 4.542,0.875 5,1.073 0.458,0.198 10 false 4E 1.188,0.656 1.646,0.854 0.458,0.198 10 false 1 1.188,1.448 1.646,1.646 0.458,0.198 10 false 1 1.146,2.146 1.604,2.344 0.458,0.198 10 false 17 1.167,2.823 1.625,3.021 0.458,0.198 10 false 44 4.542,0.677 5,0.875 0.458,0.198 10 false 56 4.531,1.802 4.99,2 0.458,0.198 10 false 19 4.563,2.802 5.021,3 0.458,0.198 10 false 3 2.115,4.01 2.573,4.208 0.458,0.198 10 false 3 3.656,5.25 4.115,5.448 0.458,0.198 10 false 9 2.104,4.417 2.563,4.615 0.458,0.198 10 false 5 3.656,4 4.115,4.198 0.458,0.198 10 false 4 3.656,4.406 4.115,4.604 0.458,0.198 10 false 6 3.667,5.635 4.125,5.833 0.458,0.198 10 false 8 2.104,5.646 2.563,5.844 0.458,0.198 10 false 7 2.063,5.24 2.521,5.438 0.458,0.198 10 false 10 1.313,5.615 2.469,5.875 1.156,0.26 10 false IG2-MAIN 4.229,5.594 5.385,5.854 1.156,0.26 10 false ECU-IG2 NO. 1 0.104,0.854 0.26,1.052 0.156,0.198 10 false G 2.333,6.417 5.854,6.615 3.521,0.198 10 false No. 1 Integration Relay 2.063,4.198 2.375,4.396 0.313,0.198 10 false 1B 2.052,4.615 2.365,4.813 0.313,0.198 10 false 1B 2.052,5.813 2.365,6.01 0.313,0.198 10 false 1A 3.615,4.594 3.927,4.792 0.313,0.198 10 false 1B 3.604,4.198 3.917,4.396 0.313,0.198 10 false 1B 2.052,5.438 2.365,5.635 0.313,0.198 10 false 1A 3.615,5.438 3.927,5.635 0.313,0.198 10 false 1A 3.625,5.833 3.938,6.031 0.313,0.198 10 false 1A 1.167,1.25 1.479,1.448 0.313,0.198 10 false 4B 1.156,1.063 1.469,1.26 0.313,0.198 10 false 13 0.156,1.229 0.313,1.427 0.156,0.198 10 false I 1.448,6.438 1.604,6.635 0.156,0.198 10 false I

0.146,0.094 2.875,0.396 2.729,0.302 12 false w/o Smart Entry and Start System: 0.49,1.146 1.052,1.385 0.563,0.24 10 false J/B-AM 0.26,2.573 0.719,2.771 0.458,0.198 10 false J/B-B 1.823,3.417 2.281,3.615 0.458,0.198 10 false AM2 3.365,1.135 4.448,1.552 1.083,0.417 10 false ECU-IG1 NO. 2 3.354,2.448 4.5,2.844 1.146,0.396 10 false ECU-IG2 NO. 3 2.708,1.625 3.625,1.875 0.917,0.25 10 false IG1-NO. 1 2.708,2.958 3.625,3.208 0.917,0.25 10 false IG2-NO. 2 1.865,3.635 4.906,3.927 3.042,0.292 10 false Driver Side Junction Block Assembly 0.865,4.479 2.052,4.719 1.188,0.24 10 false EFI-MAIN NO. 1 1.188,5.719 2.375,5.958 1.188,0.24 10 false IG2-MAIN 4.427,4.469 5.615,4.708 1.188,0.24 10 false EFI NO. 2 2.74,5.021 3.927,5.26 1.188,0.24 10 false EFI-MAIN 2.708,6.208 3.896,6.448 1.188,0.24 10 false IG2 NO. 1 1.823,7.938 4.042,8.208 2.219,0.271 10 false Ignition or Starter Switch Assembly 1.844,7.781 3.031,8.021 1.188,0.24 10 false I12 2.51,7.313 3.698,7.552 1.188,0.24 10 false AM1 2.313,7.302 3.5,7.542 1.188,0.24 10 false 7 3.302,7.052 4.49,7.292 1.188,0.24 10 false IG1 3.281,7.292 4.469,7.531 1.188,0.24 10 false ST1 3.646,7.292 4.833,7.531 1.188,0.24 10 false 5 3.635,7.042 4.823,7.281 1.188,0.24 10 false 8 5.667,7.99 7.073,8.354 1.406,0.365 10 false Engine Stop and Start ECU 0.146,8.479 1.333,8.719 1.188,0.24 10 false F 4.302,8.479 5.49,8.719 1.188,0.24 10 false D 5.094,8.49 6.281,8.729 1.188,0.24 10 false E 5.49,5.563 6.677,5.802 1.188,0.24 10 false A 4.542,4.698 5.729,4.938 1.188,0.24 10 false B 1.156,0.958 1.615,1.156 0.458,0.198 10 false 4D 1.177,1.969 1.635,2.167 0.458,0.198 10 false 4C 1.167,2.688 1.625,2.885 0.458,0.198 10 false 4E 1.167,3.292 1.625,3.49 0.458,0.198 10 false 4E 4.552,0.979 5.01,1.177 0.458,0.198 10 false 4E 4.552,2.333 5.01,2.531 0.458,0.198 10 false 4F 4.552,3.26 5.01,3.458 0.458,0.198 10 false 4F 5.531,2.333 5.99,2.531 0.458,0.198 10 false I58 5.469,4.333 5.927,4.531 0.458,0.198 10 false A124 5.469,7.396 5.927,7.594 0.458,0.198 10 false A124 5.938,0.99 6.396,1.188 0.458,0.198 10 false IG1 5.948,2.344 6.406,2.542 0.458,0.198 10 false IG2 5.948,4.333 6.406,4.531 0.458,0.198 10 false +B 5.927,7.385 6.385,7.583 0.458,0.198 10 false CLL 1.219,0.76 1.677,0.958 0.458,0.198 10 false 1 1.208,1.76 1.667,1.958 0.458,0.198 10 false 1 1.188,2.469 1.646,2.667 0.458,0.198 10 false 17 1.177,3.104 1.635,3.302 0.458,0.198 10 false 44 4.552,0.771 5.01,0.969 0.458,0.198 10 false 56 4.542,2.125 5,2.323 0.458,0.198 10 false 19 4.583,3.052 5.042,3.25 0.458,0.198 10 false 3 5.563,0.771 6.021,0.969 0.458,0.198 10 false 21 5.563,2.125 6.021,2.323 0.458,0.198 10 false 18 5.583,4.125 6.042,4.323 0.458,0.198 10 false 1 5.531,7.188 5.99,7.385 0.458,0.198 10 false 17 2.052,4.125 2.51,4.323 0.458,0.198 10 false 3 2.031,4.531 2.49,4.729 0.458,0.198 10 false 5 3.927,4.135 4.385,4.333 0.458,0.198 10 false 4 3.927,4.542 4.385,4.74 0.458,0.198 10 false 6 2.021,5.76 2.479,5.958 0.458,0.198 10 false 7 1.979,5.354 2.438,5.552 0.458,0.198 10 false 10 3.906,5.344 4.365,5.542 0.458,0.198 10 false 9 3.917,5.76 4.375,5.958 0.458,0.198 10 false 8 4.323,5.708 5.51,5.948 1.188,0.24 10 false ECU-IG2 NO. 1 0.146,0.969 0.302,1.167 0.156,0.198 10 false G 2.354,6.458 5.875,6.656 3.521,0.198 10 false No. 1 Integration Relay 1.979,4.313 2.292,4.51 0.313,0.198 10 false 1B 5.531,0.979 5.99,1.177 0.458,0.198 10 false I58 1.99,4.729 2.302,4.927 0.313,0.198 10 false 1B 3.906,4.313 4.219,4.51 0.313,0.198 10 false 1B 3.906,4.719 4.219,4.917 0.313,0.198 10 false 1B 1.99,5.927 2.302,6.125 0.313,0.198 10 false 1A 1.979,5.531 2.292,5.729 0.313,0.198 10 false 1A 3.875,5.531 4.188,5.729 0.313,0.198 10 false 1A 3.875,5.948 4.188,6.146 0.313,0.198 10 false 1A 1.167,1.469 1.479,1.667 0.313,0.198 10 false 4B 1.177,1.281 1.49,1.479 0.313,0.198 10 false 13 0.177,1.438 0.333,1.635 0.156,0.198 10 false I 1.438,6.531 1.594,6.729 0.156,0.198 10 false I

0.802,3.76 3.25,3.958 2.448,0.198 10 false Starter Assembly 1.271,7.635 3.719,7.833 2.448,0.198 10 false ECM 0.573,8.167 3.021,8.365 2.448,0.198 10 false Battery 2.875,8.188 5.323,8.385 2.448,0.198 10 false : CAN Communication Line 5.75,8.24 7.115,8.729 1.365,0.49 10 false Engine Stop and Start ECU 2.979,2.604 3.844,2.885 0.865,0.281 10 false ST 5.271,0.865 6.583,1.281 1.313,0.417 10 false Park/Neutral Position Switch Assembly 0.26,0.104 2.708,0.302 2.448,0.198 10 false F 1.229,1.271 3.677,1.469 2.448,0.198 10 false ST 0.396,1.865 2.844,2.063 2.448,0.198 10 false BATT-MAIN 3.792,0.135 4.208,0.49 0.417,0.354 10 false C 4.75,0.104 5.167,0.458 0.417,0.354 10 false D 2.667,1.875 3.531,2.156 0.865,0.281 10 false 3 3.396,1.875 4.26,2.156 0.865,0.281 10 false 5 2.667,2.188 3.531,2.469 0.865,0.281 10 false 2 3.385,2.188 4.25,2.469 0.865,0.281 10 false 1 0.615,3.188 3.063,3.385 2.448,0.198 10 false C104 1.083,3.177 3.531,3.375 2.448,0.198 10 false B 1.344,3.188 2.135,3.51 0.792,0.323 10 false SL1 1.74,3.177 2.531,3.5 0.792,0.323 10 false C87 0.74,2.958 3.188,3.156 2.448,0.198 10 false 1 1.854,2.958 4.302,3.156 2.448,0.198 10 false 2 5.521,6.729 6.021,6.969 0.5,0.24 10 false I58 5.521,7.25 6.021,7.49 0.5,0.24 10 false I58 5.927,6.729 6.427,6.969 0.5,0.24 10 false CANH 5.927,7.25 6.427,7.49 0.5,0.24 10 false CANL 1.354,6.719 1.854,6.958 0.5,0.24 10 false CANH 1.365,7.229 1.865,7.469 0.5,0.24 10 false CANL 1.396,6.302 1.896,6.542 0.5,0.24 10 false NSW 1.344,5.823 1.844,6.063 0.5,0.24 10 false MREL 1.354,5.323 1.854,5.563 0.5,0.24 10 false IGSW 1.458,4.854 1.958,5.094 0.5,0.24 10 false STA 4.115,4.281 4.979,4.563 0.865,0.281 10 false A 4.469,4.292 5.333,4.573 0.865,0.281 10 false B 4.813,4.292 5.677,4.573 0.865,0.281 10 false E 5.927,2.323 6.427,2.563 0.5,0.24 10 false STA 5.938,5.385 6.438,5.625 0.5,0.24 10 false GND1 5.938,5.885 6.438,6.125 0.5,0.24 10 false GND2 5.938,4.844 6.438,5.083 0.5,0.24 10 false DGND 5.458,2.323 5.958,2.563 0.5,0.24 10 false A124 5.458,4.844 5.958,5.083 0.5,0.24 10 false A124 5.458,5.396 5.958,5.635 0.5,0.24 10 false A123 5.563,2.125 6.063,2.365 0.5,0.24 10 false 21 5.604,5.188 6.104,5.427 0.5,0.24 10 false 8 5.604,5.677 6.104,5.917 0.5,0.24 10 false 2 5.604,4.656 6.104,4.896 0.5,0.24 10 false 6 5.573,6.531 6.073,6.771 0.5,0.24 10 false 13 5.563,7.052 6.063,7.292 0.5,0.24 10 false 14 5.281,0.677 5.698,1.031 0.417,0.354 10 false C62 4.854,0.458 5.271,0.813 0.417,0.354 10 false 4 5.135,1.49 5.552,1.844 0.417,0.354 10 false 9 1.833,6.188 4.281,6.385 2.448,0.198 10 false 57 1.833,4.76 4.281,4.958 2.448,0.198 10 false 29 0.896,7.635 3.344,7.833 2.448,0.198 10 false A46 1.844,5.24 4.292,5.438 2.448,0.198 10 false 6 1.833,5.729 4.281,5.927 2.448,0.198 10 false 46 1.823,6.563 4.271,6.76 2.448,0.198 10 false 13 1.833,7.083 4.281,7.281 2.448,0.198 10 false 26 3.896,1.552 4.313,1.906 0.417,0.354 10 false * 2.667,7.875 5.115,8.146 2.448,0.271 10 false *: w/ Smart Entry and Start System 1.167,2.542 1.323,2.74 0.156,0.198 10 false G 5.469,5.885 5.969,6.125 0.5,0.24 10 false A123 0.677,0.677 0.833,0.875 0.156,0.198 10 false H 5.479,2.875 6.094,3.073 0.615,0.198 10 false A123 5.458,3.396 6.073,3.594 0.615,0.198 10 false A123 5.927,2.875 6.542,3.073 0.615,0.198 10 false BIN1 5.917,3.406 6.531,3.604 0.615,0.198 10 false BIN2 4.594,3 5.823,3.198 1.229,0.198 10 false BBC NO.1 4.583,3.552 5.813,3.75 1.229,0.198 10 false BBC NO.2 4.01,2.875 4.167,3.073 0.156,0.198 10 false H 5.583,2.698 6.083,2.938 0.5,0.24 10 false 3 5.583,3.198 6.083,3.438 0.5,0.24 10 false 1 0.573,2.667 1.031,2.865 0.458,0.198 10 false ALT

CAUTION / NOTICE / HINT

NOTICE:: ·

Before replacing the engine stop and start ECU, read the number of starter operations and write it into a new engine stop and start ECU.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION201906,999999,_51,_080774,_0393362,RM100000001HXHH,

·

After replacing the engine stop and start ECU or air conditioning amplifier assembly, reset and perform learning of the air conditioning information in the engine stop and start ECU.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION201906,999999,_51,_080774,_0393362,RM100000001HXHH,

·

After replacing the engine stop and start ECU or airbag sensor with ECU assembly, clear and calibrate the deceleration sensor zero point in the engine stop and start ECU.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION201906,999999,_51,_080774,_0393362,RM100000001HXHH,

·

After replacing the engine stop and start ECU assembly, perform learning of the external backup boost converter (eco run vehicle converter assembly).

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION201906,999999,_51,_080774,_0393362,RM100000001HXHH,

·

After replacing the starter assembly, perform initialization of the number of starter operations stored in the engine stop and start ECU.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION201906,999999,_51,_080774,_0393362,RM100000001HXHH,

·

When the starter assembly is replaced, "ST relay" must be also replaced.

·

After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>PRECAUTION201906,999999,_V1,_080724,_0393249,RM100000001HWSK,

·

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.CHECK CRANKING

Turn the ignition switch START and check that the engine cranks.

Result:

Result	Proceed to
Engine cranks	A
Engine does not crank	B

2.PERFORM ACTIVE TEST USING GTS (STARTER(HOOD CLOSE))

7.PERFORM ACTIVE TEST USING GTS (STARTER(HOOD CLOSE))

2.PERFORM ACTIVE TEST USING GTS (STARTER(HOOD CLOSE))

Check that the engine hood is closed.

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Powertrain / Stop and Start / Active Test / Starter(Hood Close).

Powertrain > Stop and Start > Active Test

Tester Display
Starter(Hood Close)

50004 392 42017

Check whether the engine cranks while the Active Test "Starter(Hood Close)" is being performed.

NOTICE:: The Active Test "Starter(Hood Close)" is stopped automatically 3 seconds after the starter assembly begins operating.

Standard:: Engine cranks

Result:

Proceed to
OK
NG

GO TO DTC P160300 (CONFIRM CAUSE OF ENGINE STALL)

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>P160300201906,999999,_51,_080774,_0393362,RM100000001HXI5,P160300

3.CHECK HARNESS AND CONNECTOR (BIN1 AND BIN2 TERMINALS POWER SOURCE CIRCUIT)

1.469,0.229 1.969,0.5 0.5,0.271 1.042,1.5 0.75,1.875 true 1.458,1.896 1.167,1.156 true 1.563,0.281 2.021,0.479 0.458,0.198 10 false A123 0.146,0.146 0.458,0.344 0.313,0.198 10 false *a 0.573,1.927 1,2.146 0.427,0.219 10 false BIN1 1.333,1.938 1.76,2.156 0.427,0.219 10 false BIN2

*a	Front view of wire harness connector (to Engine Stop and Start ECU)

Disconnect the engine stop and start ECU connector.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A123-1 (BIN2) - Body ground	Always	9.5 to 14 V
A123-3 (BIN1) - Body ground	Always	9.5 to 14 V

Result:

Proceed to
OK
NG

4.CHECK HARNESS AND CONNECTOR (IG1 TERMINAL POWER SOURCE CIRCUIT)

REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE STOP AND START ECU - BATTERY)

4.CHECK HARNESS AND CONNECTOR (IG1 TERMINAL POWER SOURCE CIRCUIT)

1.469,0.302 2.01,0.594 0.542,0.292 2.021,1.49 2.052,1.854 true 1.625,0.354 2.073,0.531 0.448,0.177 10 false I58 0.094,0.104 0.406,0.302 0.313,0.198 10 false *a 1.948,1.896 2.333,2.115 0.385,0.219 10 false IG1

*a	Front view of wire harness connector (to Engine Stop and Start ECU)

Disconnect the engine stop and start ECU connector.

Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
I58-21 (IG1) - Body ground	Ignition switch ON	9.5 to 14 V

Result:

Proceed to
OK
NG

5.CHECK HARNESS AND CONNECTOR (+B AND IG2 TERMINALS POWER SOURCE CIRCUIT)

REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE STOP AND START ECU - DRIVER SIDE JUNCTION BLOCK ASSEMBLY (IG1-NO. 1 RELAY))

5.CHECK HARNESS AND CONNECTOR (+B AND IG2 TERMINALS POWER SOURCE CIRCUIT)

1.813,0.75 2.26,1 0.448,0.25 4.729,0.615 5.188,0.865 0.458,0.25 1.031,2.156 1.115,1.542 true 4.615,2.167 4.667,1.802 true 0.219,0.198 0.531,0.396 0.313,0.198 10 false *a 1.875,0.792 2.323,0.979 0.448,0.188 10 false A124 4.854,0.656 5.292,0.844 0.438,0.188 10 false I58 0.896,2.208 1.208,2.406 0.313,0.198 10 false +B 4.531,2.219 4.844,2.417 0.313,0.198 10 false IG2

Front view of wire harness connector
(to Engine Stop and Start ECU)

Disconnect the engine stop and start ECU connectors.

Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A124-1 (+B) - Body ground	Ignition switch ON	9.5 to 14 V
I58-18 (IG2) - Body ground	Ignition switch ON	9.5 to 14 V

Result:

Proceed to
OK
NG

6.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - BODY GROUND)

REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE STOP AND START ECU - EFI-MAIN NO. 1 RELAY OR DRIVER SIDE JUNCTION BLOCK ASSEMBLY (IG2-NO. 2 RELAY))

6.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - BODY GROUND)

Disconnect the engine stop and start ECU connectors.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
A123-2 (GND2) - Body ground	Always	Below 1 Ω
A123-8 (GND1) - Body ground	Always	Below 1 Ω
A124-6 (DGND) - Body ground	Always	Below 1 Ω

Result:

Proceed to
OK
NG

REPLACE ENGINE STOP AND START ECU

Click hereEngine / Hybrid System>STOP AND START>ENGINE STOP AND START ECU>REMOVAL201906,202205,_51,_080774,_0393057,RM100000001HV6H,202205,202304,_51,_080774,_0393057,RM10000000232EJ,202304,999999,_51,_080774,_0393057,RM100000002BMUD,

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.PERFORM ACTIVE TEST USING GTS (STARTER(HOOD CLOSE))

Check that the engine hood is closed.

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Powertrain / Stop and Start / Active Test / Starter(Hood Close).

Powertrain > Stop and Start > Active Test

Tester Display
Starter(Hood Close)

50004 392 42017

Check whether the engine cranks while the Active Test "Starter(Hood Close)" is being performed.

NOTICE:: The Active Test "Starter(Hood Close)" is stopped automatically 3 seconds after the starter assembly begins operating.

Standard:: Engine cranks

Result:

Result	Proceed to
Engine cranks	A
Engine does not crank	B

8.READ VALUE USING GTS (NEUTRAL SWITCH)

17.CHECK ENGINE STOP AND START ECU (STA SIGNAL)

8.READ VALUE USING GTS (NEUTRAL SWITCH)

Connect the GTS to the DLC3.

Turn the ignition switch to ON.

Turn the GTS on.

Enter the following menus: Powertrain / Stop and Start / Data List / Neutral Switch.

Powertrain > Stop and Start > Data List

Tester Display
Neutral Switch

50003 392 202

In accordance with the display on the GTS, read the Data List.

OK:

GTS Display	Condition	Normal Condition
Neutral Switch	Shift lever in P or N	ON
Neutral Switch	Shift lever not in P or N	OFF

Result:

Result	Proceed to
NG	A
OK (w/ Smart Entry and Start System)	B
OK (w/o Smart Entry and Start System)	C

9.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

12.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

14.INSPECT IGNITION OR STARTER SWITCH ASSEMBLY

9.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

Inspect the park/neutral position switch assembly.

Click hereDrivetrain>K313 (CVT)>PARK / NEUTRAL POSITION SWITCH>INSPECTION201906,999999,_52,_080728,_0392272,RM100000001HPB4,

Result:

Result	Proceed to
OK (w/ Smart Entry and Start System)	A
OK (w/o Smart Entry and Start System)	B
NG	C

10.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ST RELAY)

11.CHECK HARNESS AND CONNECTOR (IGNITION OR STARTER SWITCH ASSEMBLY - ST RELAY)

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

Click hereDrivetrain>K313 (CVT)>PARK / NEUTRAL POSITION SWITCH>REMOVAL201906,202205,_52,_080728,_0392272,RM100000001HPB7,202205,202304,_52,_080728,_0392272,RM1000000022ZAN,202304,999999,_52,_080728,_0392272,RM100000002BCJK,

10.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ST RELAY)

Disconnect the certification ECU (smart key ECU assembly) connector.

Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.

Disconnect the engine stop and start ECU connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
O62-2 (STAR) - 1 (ST relay)	Shift lever in P or N	Below 1 Ω
O62-2 (STAR) - 1 (ST relay)	Shift lever not in P or N	10 kΩ or higher

Result:

Proceed to
OK
NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>PROBLEM SYMPTOMS TABLE201906,999999,_51,_080774,_0393362,RM100000001HXHI,

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.CHECK HARNESS AND CONNECTOR (IGNITION OR STARTER SWITCH ASSEMBLY - ST RELAY)

Disconnect the ignition or starter switch assembly connector.

Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.

Disconnect the engine stop and start ECU connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
I12-5 (ST1) - 1 (ST relay)	Shift lever in P or N	Below 1 Ω
I12-5 (ST1) - 1 (ST relay)	Shift lever not in P or N	10 kΩ or higher

Result:

Proceed to
OK
NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>PROBLEM SYMPTOMS TABLE201906,999999,_51,_080774,_0393362,RM100000001HXHI,

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

Disconnect the certification ECU (smart key ECU assembly) connector.

Disconnect the park/neutral position switch assembly connector.

Disconnect the engine stop and start ECU connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
O62-2 (STAR) - C62-4 (B)	Always	Below 1 Ω
O62-2 (STAR) or C62-4 (B) - Body ground and other terminals	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

13.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (STAR SIGNAL)

REPAIR OR REPLACE HARNESS OR CONNECTOR

13.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (STAR SIGNAL)

1.531,0.281 1.958,0.542 0.427,0.26 1.229,1.802 1.302,1.385 true 0.177,0.188 0.49,0.344 0.313,0.156 10 false *a 1.104,1.823 1.563,2.021 0.458,0.198 10 false CLL 1.583,0.323 2.042,0.521 0.458,0.198 10 false A124

*a	Front view of wire harness connector (to Engine Stop and Start ECU)

Disconnect the engine stop and start ECU connector.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A124-17 (CLL) - Body ground	Engine start	9.5 to 14 V

Result:

Proceed to
OK
NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>PROBLEM SYMPTOMS TABLE201906,999999,_51,_080774,_0393362,RM100000001HXHI,

GO TO SMART ENTRY AND START SYSTEM

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING201906,202304,_58,_080747,_0392033,RM100000001HNOM,202304,999999,_58,_080747,_0586354,RM1000000029OG1,

14.INSPECT IGNITION OR STARTER SWITCH ASSEMBLY

Inspect the ignition or starter switch assembly.

Click hereEngine / Hybrid System>NR Series (STARTING)>IGNITION SWITCH>INSPECTION201906,999999,_51,_080759,_0392367,RM100000001HQ72,

Result:

Proceed to
OK
NG

15.CHECK HARNESS AND CONNECTOR (IGNITION OR STARTER SWITCH ASSEMBLY - BATTERY)

REPLACE IGNITION OR STARTER SWITCH ASSEMBLY

Click hereEngine / Hybrid System>NR Series (STARTING)>IGNITION SWITCH>REMOVAL201906,999999,_51,_080759,_0392367,RM100000001HQ70,

15.CHECK HARNESS AND CONNECTOR (IGNITION OR STARTER SWITCH ASSEMBLY - BATTERY)

1.51,0.188 1.917,0.458 0.406,0.271 1.76,1.833 2.177,1.417 true 0.24,0.271 0.563,0.521 0.323,0.25 10 false *a 1.427,1.771 1.75,2.021 0.323,0.25 10 false AM1 1.615,0.24 1.938,0.49 0.323,0.25 10 false I12

*a	Front view of wire harness connector (to Ignition or Starter Switch Assembly)

Disconnect the ignition or starter switch assembly connector.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
I12-7 (AM1) - Body ground	Always	9.5 to 14 V

Result:

Proceed to
OK
NG

16.CHECK HARNESS AND CONNECTOR (IGNITION OR STARTER SWITCH ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

16.CHECK HARNESS AND CONNECTOR (IGNITION OR STARTER SWITCH ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

Disconnect the ignition or starter switch assembly connector.

Disconnect the park/neutral position switch assembly connector.

Disconnect the engine stop and start ECU connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
I12-5 (ST1) - C62-4 (B)	Always	Below 1 Ω
I12-5 (ST1) or C62-4 (B) - Body ground and other terminals	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>PROBLEM SYMPTOMS TABLE201906,999999,_51,_080774,_0393362,RM100000001HXHI,

REPAIR OR REPLACE HARNESS OR CONNECTOR

17.CHECK ENGINE STOP AND START ECU (STA SIGNAL)

3.25,0.479 3.771,0.792 0.521,0.313 4.198,2.219 3.76,1.229 true 3.479,2.24 3.427,1.344 true 3.354,2.281 4.135,2.479 0.781,0.198 10 false STA 4.042,2.281 4.698,2.469 0.656,0.188 10 false DGND 3.354,0.552 3.729,0.75 0.375,0.198 10 false A124 0.104,0.073 0.885,0.271 0.781,0.198 10 false *a

Component with harness connected
(Engine Stop and Start ECU)

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A124-21 (STA) - A124-6 (DGND)	Engine started by ignition switch operation	6.0 to 14 V

Result:

Proceed to
OK
NG

18.INSPECT RELAY (ST RELAY)

28.CHECK HARNESS AND CONNECTOR (BIN1 AND BIN2 TERMINALS POWER SOURCE CIRCUIT)

18.INSPECT RELAY (ST RELAY)

Inspect the ST relay.

Click hereEngine / Hybrid System>NR Series (STARTING)>RELAY>INSPECTION201906,999999,_51,_080759,_0392368,RM100000001HQ73_01_0001,

Result:

Proceed to
OK
NG

19.CHECK HARNESS AND CONNECTOR (ST RELAY - BATTERY)

REPLACE RELAY (ST RELAY)

19.CHECK HARNESS AND CONNECTOR (ST RELAY - BATTERY)

2.24,0.958 2.552,1.156 0.313,0.198 10 false *2 0.104,0.052 0.417,0.25 0.313,0.198 10 false *1

*1	No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly
*2	ST Relay

Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
5 (ST relay) - Body ground	Always	9.5 to 14 V

Result:

Proceed to
OK
NG

20.CHECK HARNESS AND CONNECTOR (ST RELAY - STARTER ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR (ST RELAY - BATTERY)

20.CHECK HARNESS AND CONNECTOR (ST RELAY - STARTER ASSEMBLY)

Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.

Disconnect the starter assembly connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 (ST relay) - C87-2 (SL1)	Always	Below 1 Ω

Result:

Proceed to
OK
NG

21.CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND)

REPAIR OR REPLACE HARNESS OR CONNECTOR (ST RELAY - STARTER ASSEMBLY)

21.CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND)

Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
2 (ST relay) - Body ground	Always	Below 1 Ω

Result:

Proceed to
OK
NG

22.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ST RELAY)

REPAIR OR REPLACE HARNESS OR CONNECTOR (ST RELAY - BODY GROUND)

22.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - ST RELAY)

Disconnect the engine stop and start ECU connector.

Remove the ST relay from the No. 1 engine room relay block and No. 1 junction block assembly.

Disconnect the certification ECU (smart key ECU assembly) connector. (w/ Smart Entry and Start System)

Disconnect the park/neutral position switch assembly connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
A124-21 (STA) - 1 (ST relay)	Always	Below 1 Ω
A124-21 (STA) or 1 (ST relay) - Body ground and other terminals	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

23.CHECK STARTER SIGNAL (OUTPUT WAVEFORM)

REPAIR OR REPLACE HARNESS OR CONNECTOR

23.CHECK STARTER SIGNAL (OUTPUT WAVEFORM)

Connect the positive (+) lead of an oscilloscope to the positive (+) battery terminal and the negative (-) lead to the negative (-) battery terminal.

While cranking the engine, count the number of times the waveform drops.

3.438,0.781 3.583,0.417 3.583,0.417 3.833,0.417 false 0.104,0.729 0.719,0.927 0.615,0.198 10 false Normal: 0.125,2.031 0.844,2.229 0.719,0.198 10 false Abnormal: 0.719,0.917 2.042,1.135 1.323,0.219 10 false Approximately 12 V 1.938,1.24 3.927,1.438 1.99,0.198 10 false 7.6 to 9.3 V* 3.906,0.323 5.667,0.542 1.76,0.219 10 false Approximately 0.1 seconds 3.396,1.698 5.073,1.896 1.677,0.198 10 false Less than 3 seconds 5.167,3.177 7.083,3.5 1.917,0.323 10 false *: Varies with battery condition 2.323,2.49 4.958,3.042 2.635,0.552 10 false If the waveform does not change either the starter inrush current reduction relay or starter assembly is not operating. 0.729,2.302 2.052,2.521 1.323,0.219 10 false Approximately 12 V

Standard:: Waveform drops 2 times

Result:

Number of Times Waveform Dropped	Proceed to
0 times	A
2 times	B

24.INSPECT STARTER INRUSH CURRENT REDUCTION RELAY

27.INSPECT STARTER ASSEMBLY

24.INSPECT STARTER INRUSH CURRENT REDUCTION RELAY

2.365,1.365 2.656,1.865 2.656,1.865 2.833,1.865 true 2.25,1.917 2.542,2.25 2.542,2.25 2.792,2.25 true 0.094,0.104 0.333,0.385 0.24,0.281 10 false *1 2.885,1.771 3.125,2.052 0.24,0.281 10 false *a 2.854,2.177 3.094,2.458 0.24,0.281 10 false *b

*1	Starter Assembly
*a	B Terminal
*b	M Terminal

Disconnect the cable from the negative (-) battery terminal.

Disconnect terminals B and M of the starter inrush current reduction relay.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
B Terminal - M Terminal	Always	Below 1 Ω

Result:

Proceed to
OK
NG

25.INSPECT STARTER ASSEMBLY (WIRE HARNESS)

26.INSPECT STARTER ASSEMBLY (M TERMINAL)

25.INSPECT STARTER ASSEMBLY (WIRE HARNESS)

2.042,1.094 2.042,0.25 2.042,0.25 2.24,0.25 true 1.458,1.438 1.104,0.896 1.104,0.896 0.865,0.896 true 2.385,1.479 2.698,2.052 2.698,2.052 2.917,2.052 true 0.125,0.104 0.375,0.396 0.25,0.292 10 false *1 2.281,0.156 2.594,0.354 0.313,0.198 10 false *a 2.969,1.99 3.188,2.188 0.219,0.198 10 false *b 0.688,0.802 1,1 0.313,0.198 10 false *c

*1	Starter Assembly
*a	Inspect Part
*b	B Terminal
*c	C Terminal

Disconnect the cable from the negative (-) battery terminal.

Disconnect terminal B of the starter inrush current reduction relay.

Disconnect terminal C of the starter assembly.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
C Terminal - B Terminal	Always	Below 1 Ω

Result:

Proceed to
OK
NG

REPLACE STARTER ASSEMBLY

Click hereEngine / Hybrid System>NR Series (STARTING)>STARTER>REMOVAL201906,202205,_51,_080759,_0392365,RM100000001HQ6U,202205,202304,_51,_080759,_0392365,RM1000000022YQE,202304,999999,_51,_080759,_0392365,RM100000002BCFB,

REPAIR OR REPLACE WIRE HARNESS

26.INSPECT STARTER ASSEMBLY (M TERMINAL)

0.813,0.823 1.021,0.823 1.021,0.823 1.906,1.677 true 2.625,2.188 2.458,2.188 2.458,2.188 2.271,1.885 true 0.24,0.208 0.531,0.49 0.292,0.281 10 false *1 0.635,0.729 0.885,1.042 0.25,0.313 10 false *a 2.656,2.115 2.906,2.427 0.25,0.313 10 false *b

*1	Starter Assembly
*a	Inspect Part
*b	M Terminal

Disconnect the cable from the negative (-) battery terminal.

Disconnect terminal M of the starter inrush current reduction relay.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
M Terminal - Body ground	Always	Below 1 Ω

Result:

Proceed to
OK
NG

REPLACE STARTER INRUSH CURRENT REDUCTION RELAY

Click hereEngine / Hybrid System>NR Series (STARTING)>STARTER>DISASSEMBLY201906,999999,_51,_080759,_0392365,RM100000001HQ6P_01_0009,

REPLACE STARTER ASSEMBLY

27.INSPECT STARTER ASSEMBLY

Inspect the starter assembly.

Click hereEngine / Hybrid System>NR Series (STARTING)>STARTER>INSPECTION201906,999999,_51,_080759,_0392365,RM100000001HQ6R,

Result:

Proceed to
OK
NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>PROBLEM SYMPTOMS TABLE201906,999999,_51,_080774,_0393362,RM100000001HXHI,

REPLACE STARTER ASSEMBLY

28.CHECK HARNESS AND CONNECTOR (BIN1 AND BIN2 TERMINALS POWER SOURCE CIRCUIT)

1.469,0.24 1.958,0.5 0.49,0.26 1.042,1.5 0.75,1.875 true 1.458,1.896 1.167,1.156 true 1.552,0.292 2.01,0.49 0.458,0.198 10 false A123 0.146,0.146 0.458,0.344 0.313,0.198 10 false *a 0.573,1.927 1,2.146 0.427,0.219 10 false BIN1 1.333,1.938 1.76,2.156 0.427,0.219 10 false BIN2

*a	Front view of wire harness connector (to Engine Stop and Start ECU)

Disconnect the engine stop and start ECU connector.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A123-1 (BIN2) - Body ground	Always	9.5 to 14 V
A123-3 (BIN1) - Body ground	Always	9.5 to 14 V

Result:

Proceed to
OK
NG

29.CHECK HARNESS AND CONNECTOR (IG1 TERMINAL POWER SOURCE CIRCUIT)

REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE STOP AND START ECU - BATTERY)

29.CHECK HARNESS AND CONNECTOR (IG1 TERMINAL POWER SOURCE CIRCUIT)

1.469,0.313 2.01,0.594 0.542,0.281 2.021,1.49 2.052,1.854 true 1.635,0.365 2.083,0.542 0.448,0.177 10 false I58 0.094,0.104 0.406,0.302 0.313,0.198 10 false *a 1.948,1.896 2.333,2.115 0.385,0.219 10 false IG1

*a	Front view of wire harness connector (to Engine Stop and Start ECU)

Disconnect the engine stop and start ECU connector.

Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
I58-21 (IG1) - Body ground	Ignition switch ON	9.5 to 14 V

Result:

Proceed to
OK
NG

30.CHECK HARNESS AND CONNECTOR (+B AND IG2 TERMINALS POWER SOURCE CIRCUIT)

REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE STOP AND START ECU - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

30.CHECK HARNESS AND CONNECTOR (+B AND IG2 TERMINALS POWER SOURCE CIRCUIT)

1.813,0.75 2.24,1 0.427,0.25 4.729,0.625 5.208,0.865 0.479,0.24 1.031,2.156 1.115,1.542 true 4.615,2.167 4.667,1.802 true 0.219,0.198 0.531,0.396 0.313,0.198 10 false *a 1.865,0.781 2.458,1.063 0.594,0.281 10 false A124 4.865,0.667 5.302,0.854 0.438,0.188 10 false I58 0.896,2.208 1.208,2.406 0.313,0.198 10 false +B 4.531,2.219 4.844,2.417 0.313,0.198 10 false IG2

Front view of wire harness connector
(to Engine Stop and Start ECU)

Disconnect the engine stop and start ECU connectors.

Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A124-1 (+B) - Body ground	Ignition switch ON	9.5 to 14 V
I58-18 (IG2) - Body ground	Ignition switch ON	9.5 to 14 V

Result:

Proceed to
OK
NG

31.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - BODY GROUND)

REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE STOP AND START ECU - EFI-MAIN NO. 1 RELAY OR DRIVER SIDE JUNCTION BLOCK ASSEMBLY (IG2-NO. 2 RELAY))

31.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - BODY GROUND)

Disconnect the engine stop and start ECU connectors.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
A123-2 (GND2) - Body ground	Always	Below 1 Ω
A123-8 (GND1) - Body ground	Always	Below 1 Ω
A124-6 (DGND) - Body ground	Always	Below 1 Ω

Result:

Proceed to
OK
NG

REPLACE ENGINE STOP AND START ECU

REPAIR OR REPLACE HARNESS OR CONNECTOR