RM38T0EC _51 Engine / Hybrid System _115233 STOP AND START _0510781 STOP AND START SYSTEM C

STOP AND START  STOP AND START SYSTEM  P253014  Ignition Switch Circuit Short to Ground or Open  


DESCRIPTION

If the engine stop and start ECU receives the off signal from the ignition or starter switch assembly*1 or certification ECU (smart key ECU assembly)*2 when communication with the ECM is normal, the engine stop and start ECU will output DTC P253014.

*1: w/o Smart Entry and Start System

*2: w/ Smart Entry and Start System


DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Note
P253014 Ignition Switch Circuit Short to Ground or Open All of the following conditions are met for 10 seconds or more (1 trip detection logic):
·

Ignition switch off signal is input.

·

Communication with the ECM is normal.

·

Ignition switch (communication) ON


·

Wire harness or connector

·

EFI-MAIN NO. 1 relay

·

IGP relay

·

Power distribution box assembly (IGR NO. 1 relay)*1

·

Ignition or starter switch assembly*2

·

Certification ECU (Smart key ECU assembly)*1

·

Engine stop and start ECU


Blinks SAE Code: P2531

*1: w/ Smart Entry and Start System

*2: w/o Smart Entry and Start System


CONFIRMATION DRIVING PATTERN

CONFIRMATION AFTER TROUBLESHOOTING


HINT:
·

If the cable is disconnected from the auxiliary battery terminal, stop and start control is prohibited until refresh charge is completed.

In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item "Status of Battery Charge Control" changes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the auxiliary battery fluid temperature at 11°C (52°F) or higher, the refresh charge will be completed.)

·

If the GTS is not available and the Data List item "Status of Battery Charge Control" cannot be checked, charge the auxiliary battery by idling the engine for approximately 5 to 60 minutes or driving the vehicle, and then drive the vehicle and check that stop and start control operates.

If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.

·

After the refresh charge completes, turn the ignition switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.

·

Allow the engine to idle for 3 minutes after it is warmed up and check that the engine idle speed is within 50 rpm of the target idle speed.



a.

Clear the DTCs.

Powertrain > Stop and Start > Clear DTCs
50002 392

b.

Start the engine and warm it up.


c.

Drive the vehicle at 7 km/h (4 mph) or more.

CAUTION:

When performing Confirmation Driving Pattern, obey all speed limits and traffic laws.



d.

Depress the brake pedal and stop the vehicle.


e.

Keep the engine stopped by stop and start control for 1 second or more. (Keep the shift lever in D.)


f.

Release the brake pedal with the shift lever in D to start the engine.

HINT:

If the engine cranks slowly when the engine is restarted, it can be determined that the auxiliary battery voltage is low.



g.

Check that DTCs are not output.

Powertrain > Stop and Start > Trouble Codes
50001 392


STOP AND START SYSTEM OPERATION CHECK


Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>OPERATION CHECK


WIRING DIAGRAM

A539441E01
5.875,0.375 6.333,0.573 0.458,0.198 10 false A169 6.281,0.365 6.74,0.563 0.458,0.198 10 false +B 5.969,0.198 6.427,0.396 0.458,0.198 10 false 1 4.802,0.542 5.51,0.792 0.708,0.25 10 false EFI NO. 2 3.094,1.125 4.24,1.354 1.146,0.229 10 false EFI-MAIN NO. 1 0.906,0.948 2.052,1.177 1.146,0.229 10 false EFI-MAIN NO. 1 0.083,0.094 2.635,0.438 2.552,0.344 12 false w/ Smart Entry and Start System: 4.083,0.688 4.542,0.885 0.458,0.198 10 false 1 4.094,0.26 4.552,0.458 0.458,0.198 10 false 3 2.969,0.688 3.427,0.885 0.458,0.198 10 false 2 2.958,0.271 3.417,0.469 0.458,0.198 10 false 5 4.104,1.677 5.156,1.927 1.052,0.25 10 false ECU-IGP NO. 1 1.51,2.24 1.969,2.438 0.458,0.198 10 false A182 2.281,1.844 2.74,2.042 0.458,0.198 10 false 33 2.292,1.438 2.75,1.635 0.458,0.198 10 false 30 1.969,1.521 2.427,1.719 0.458,0.198 10 false IGP 1.958,1.948 2.417,2.146 0.458,0.198 10 false IGR 1.521,2.375 1.979,2.573 0.458,0.198 10 false ECM 5.906,3.76 6.365,3.958 0.458,0.198 10 false I230 5.958,3.573 6.417,3.771 0.458,0.198 10 false 21 6.271,3.75 6.729,3.948 0.458,0.198 10 false IGR 6.271,5.76 6.729,5.958 0.458,0.198 10 false IGP 6.26,6.229 6.719,6.427 0.458,0.198 10 false DGND 6.094,6.531 7.115,6.958 1.021,0.427 10 false Engine Stop and Start ECU 5.917,5.75 6.375,5.948 0.458,0.198 10 false I230 5.865,6.229 6.323,6.427 0.458,0.198 10 false A169 5.948,5.583 6.406,5.781 0.458,0.198 10 false 18 5.979,6.031 6.438,6.229 0.458,0.198 10 false 6 4.604,5.906 5.75,6.135 1.146,0.229 10 false ECU-IGP NO. 2 3.573,5.042 5.656,5.271 2.083,0.229 10 false Power Distribution Box Assembly 3.917,3 5.063,3.229 1.146,0.229 10 false ECU-IGR NO. 1 3.927,3.906 5.073,4.135 1.146,0.229 10 false ECU-IGR NO. 3 5.167,2.844 5.625,3.042 0.458,0.198 10 false 8E 5.167,2.656 5.625,2.854 0.458,0.198 10 false 22 5.156,3.771 5.615,3.969 0.458,0.198 10 false 8B 5.198,3.563 5.656,3.76 0.458,0.198 10 false 9 2.25,4.979 2.708,5.177 0.458,0.198 10 false 8B 2.083,5.156 2.542,5.354 0.458,0.198 10 false 10 1.365,4.104 1.823,4.302 0.458,0.198 10 false 8J 1.396,3.896 1.854,4.094 0.458,0.198 10 false 1 1.906,3 2.365,3.198 0.458,0.198 10 false AM2 1.375,2.854 1.833,3.052 0.458,0.198 10 false 8B 1.375,2.667 1.833,2.865 0.458,0.198 10 false 24 3.135,5.625 3.594,5.823 0.458,0.198 10 false 5 4.031,5.625 4.49,5.823 0.458,0.198 10 false 3 4.031,6.042 4.49,6.24 0.458,0.198 10 false 1 3.135,6.052 3.594,6.25 0.458,0.198 10 false 2 3.073,8.271 5.958,8.615 2.885,0.344 10 false Certification ECU (Smart Key ECU Assembly) 3.594,7.115 4.052,7.313 0.458,0.198 10 false IGPD 3.583,7.542 4.042,7.74 0.458,0.198 10 false IGRD 3.583,7.927 4.042,8.125 0.458,0.198 10 false +B 3.177,7.125 3.635,7.323 0.458,0.198 10 false I223 3.177,7.552 3.635,7.75 0.458,0.198 10 false I223 3.188,7.927 3.646,8.125 0.458,0.198 10 false I222 3.229,6.938 3.688,7.135 0.458,0.198 10 false 24 3.219,7.365 3.677,7.563 0.458,0.198 10 false 11 3.26,7.75 3.719,7.948 0.458,0.198 10 false 6 0.542,8.177 1.792,8.563 1.25,0.385 10 false Auxiliary Battery 1.052,7.521 1.531,7.76 0.479,0.24 10 false ALT 0.427,6.781 1.24,7.042 0.813,0.26 10 false BATT-MAIN 1.229,5.885 2.198,6.094 0.969,0.208 10 false IGP-MAIN 5.156,4.167 5.615,4.365 0.458,0.198 10 false 8B 5.156,4.375 5.615,4.573 0.458,0.198 10 false 41 1,6.49 2.99,6.688 1.99,0.198 10 false INP STD NO. 1 3.344,6.458 4.313,6.667 0.969,0.208 10 false IGP-MAIN 5.156,4.552 5.615,4.75 0.458,0.198 10 false 8C 5.156,3.979 5.615,4.177 0.458,0.198 10 false 36 2.969,4.344 4.115,4.573 1.146,0.229 10 false IGR NO. 1 2.75,4.969 3.063,5.167 0.313,0.198 10 false 8C 3.219,4.979 3.531,5.177 0.313,0.198 10 false 8E 2.594,5.156 2.906,5.354 0.313,0.198 10 false 17 3.094,5.156 3.406,5.354 0.313,0.198 10 false 14 1.948,4.073 2.26,4.271 0.313,0.198 10 false IC 1.365,3.438 1.823,3.635 0.458,0.198 10 false 8K 1.396,3.24 1.854,3.438 0.458,0.198 10 false 1 0.552,7.823 2.75,8.208 2.198,0.385 10 false Fusible Link Block Assembly 0.229,6.083 0.688,6.281 0.458,0.198 10 false A75 0.198,5.875 0.656,6.073 0.458,0.198 10 false 1 0.698,6.083 1.156,6.281 0.458,0.198 10 false A76 0.646,5.875 1.104,6.073 0.458,0.198 10 false 1 0.406,3.635 1.396,3.875 0.99,0.24 10 false INP STD NO. 3 4.635,0.781 5.313,1.063 0.677,0.281 10 false to ECM

A539442E01
5.875,0.375 6.333,0.573 0.458,0.198 10 false A169 6.281,0.365 6.74,0.563 0.458,0.198 10 false +B 5.969,0.198 6.427,0.396 0.458,0.198 10 false 1 4.813,0.521 5.521,0.771 0.708,0.25 10 false EFI NO. 2 3.094,1.125 4.24,1.354 1.146,0.229 10 false EFI-MAIN NO. 1 0.958,0.958 2.104,1.188 1.146,0.229 10 false EFI-MAIN NO. 1 0.083,0.073 2.625,0.344 2.542,0.271 12 false w/o Smart Entry and Start System: 4.083,0.688 4.542,0.885 0.458,0.198 10 false 1 4.094,0.26 4.552,0.458 0.458,0.198 10 false 3 2.969,0.688 3.427,0.885 0.458,0.198 10 false 2 2.958,0.271 3.417,0.469 0.458,0.198 10 false 5 4.094,1.688 5.146,1.938 1.052,0.25 10 false ECU-IGP NO. 1 1.5,2.24 1.958,2.438 0.458,0.198 10 false A182 2.292,1.854 2.75,2.052 0.458,0.198 10 false 33 2.292,1.427 2.75,1.625 0.458,0.198 10 false 30 1.969,1.521 2.427,1.719 0.458,0.198 10 false IGP 1.958,1.948 2.417,2.146 0.458,0.198 10 false IGR 1.49,2.385 1.948,2.583 0.458,0.198 10 false ECM 5.906,3.875 6.365,4.073 0.458,0.198 10 false I230 5.958,3.677 6.417,3.875 0.458,0.198 10 false 21 6.271,3.865 6.729,4.063 0.458,0.198 10 false IGR 6.26,5.781 6.719,5.979 0.458,0.198 10 false IGP 6.26,6.229 6.719,6.427 0.458,0.198 10 false DGND 6.094,6.542 7.115,6.969 1.021,0.427 10 false Engine Stop and Start ECU 5.906,5.781 6.365,5.979 0.458,0.198 10 false I230 5.865,6.219 6.323,6.417 0.458,0.198 10 false A169 5.948,5.583 6.406,5.781 0.458,0.198 10 false 18 5.979,6.01 6.438,6.208 0.458,0.198 10 false 6 4.552,5.948 5.698,6.177 1.146,0.229 10 false ECU-IGP NO. 2 3.302,5.073 6.188,5.417 2.885,0.344 10 false Power Distribution Box Assembly 3.917,2.99 5.063,3.219 1.146,0.229 10 false ECU-IGR NO. 1 3.927,4.021 5.073,4.25 1.146,0.229 10 false ECU-IGR NO. 3 5.167,2.854 5.625,3.052 0.458,0.198 10 false 8E 5.167,2.656 5.625,2.854 0.458,0.198 10 false 22 5.167,3.875 5.625,4.073 0.458,0.198 10 false 8B 5.208,3.677 5.667,3.875 0.458,0.198 10 false 9 1.531,4.333 1.99,4.531 0.458,0.198 10 false 8J 1.552,4.115 2.01,4.313 0.458,0.198 10 false 1 2.104,3.01 2.563,3.208 0.458,0.198 10 false AM2 1.521,2.854 1.979,3.052 0.458,0.198 10 false 8B 1.531,2.646 1.99,2.844 0.458,0.198 10 false 24 2.865,5.667 3.323,5.865 0.458,0.198 10 false 5 4.021,5.667 4.479,5.865 0.458,0.198 10 false 3 4.021,6.094 4.479,6.292 0.458,0.198 10 false 1 2.865,6.094 3.323,6.292 0.458,0.198 10 false 2 0.552,8.156 1.802,8.542 1.25,0.385 10 false Auxiliary Battery 1.031,7.521 1.51,7.76 0.479,0.24 10 false ALT 0.438,6.896 1.25,7.156 0.813,0.26 10 false BATT-MAIN 1.344,5.927 2.313,6.135 0.969,0.208 10 false IGP-MAIN 5.156,4.271 5.615,4.469 0.458,0.198 10 false 8B 5.167,4.51 5.625,4.708 0.458,0.198 10 false 41 1.042,6.615 3.031,6.813 1.99,0.198 10 false INP STD NO. 1 3.198,6.531 4.167,6.74 0.969,0.208 10 false IGP-MAIN 5.167,4.698 5.625,4.896 0.458,0.198 10 false 8C 5.167,4.083 5.625,4.281 0.458,0.198 10 false 36 2.99,4.5 4.135,4.729 1.146,0.229 10 false IGR NO. 1 2.458,5.031 2.771,5.229 0.313,0.198 10 false 8C 2.927,5.031 3.24,5.229 0.313,0.198 10 false 8E 2.271,5.208 2.583,5.406 0.313,0.198 10 false 17 2.76,5.208 3.073,5.406 0.313,0.198 10 false 14 2.094,4.083 2.406,4.281 0.313,0.198 10 false IC 2.948,7.448 3.406,7.646 0.458,0.198 10 false AM1 3.875,7.448 4.333,7.646 0.458,0.198 10 false IG1 2.604,7.854 3.063,8.052 0.458,0.198 10 false I12 2.604,8.042 4.958,8.292 2.354,0.25 10 false Ignition or Starter Switch Assembly 2.719,7.448 2.875,7.646 0.156,0.198 10 false 7 4.229,7.448 4.385,7.646 0.156,0.198 10 false 8 0.531,7.781 2.521,8.063 1.99,0.281 10 false Fusible Link Block Assembly 1.521,3.521 1.979,3.719 0.458,0.198 10 false 8K 1.552,3.313 2.01,3.51 0.458,0.198 10 false 1 0.771,6.188 1.229,6.385 0.458,0.198 10 false A76 0.25,6.188 0.708,6.385 0.458,0.198 10 false A75 0.219,5.979 0.677,6.177 0.458,0.198 10 false 1 0.74,5.979 1.198,6.177 0.458,0.198 10 false 1 0.438,3.698 2.427,3.896 1.99,0.198 10 false INP STD NO. 3 4.667,0.792 5.813,1.021 1.146,0.229 10 false to ECM

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>REGISTRATION

·

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

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION

·

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>REGISTRATION

·

When the ECM is replaced on a vehicle with a non-specified auxiliary battery, it is necessary to perform auxiliary battery type switching.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>REGISTRATION

·

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



HINT:
·

Using the GTS, read the freeze frame data before troubleshooting. System condition information is recorded as freeze frame data the moment a DTC is stored. This information can be useful when troubleshooting.

Click hereEngine / Hybrid System>STOP AND START>STOP AND START SYSTEM>FREEZE FRAME DATA

·

For wire harness and connector inspection procedures and precautions, refer to "General>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>ELECTRONIC CIRCUIT INSPECTION PROCEDURE"

·

DTCs for the stop and start system are not cleared even if the malfunction has been repaired. After repairing the malfunction, be sure to clear the DTCs.



PROCEDURE

1.READ VALUE USING GTS (IG SWITCH)
a.

Enter the following menus.

Powertrain > Stop and Start > Data List
Tester Display
IG Switch
50003 392 203

b.

Read the value displayed on the GTS.

Result:
Tester Display Result Proceed to
IG Switch ON A
IG Switch OFF B




A

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


B

2.CHECK ENGINE STOP AND START ECU (IGP TERMINAL VOLTAGE)
2.CHECK ENGINE STOP AND START ECU (IGP TERMINAL VOLTAGE)
A454171C24
4.625,0.479 5.146,0.792 0.521,0.313 5.385,2.135 5.083,1.531 true 5.396,2.177 6.052,2.365 0.656,0.188 10 false IGP 4.75,0.542 5.125,0.74 0.375,0.198 10 false I230 0.104,0.073 0.885,0.271 0.781,0.198 10 false *a
*a Component with harness connected
(Engine Stop and Start ECU) 		- -


a.

Turn the ignition switch to ON.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
I230-18 (IGP) - Body ground Ignition switch ON 9.5 to 14 V



Result:
Proceed to
OK
NG



OK

3.CHECK ENGINE STOP AND START ECU (+B TERMINAL VOLTAGE)

NG

8.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - POWER DISTRIBUTION BOX ASSEMBLY (IGR NO. 1 RELAY))
3.CHECK ENGINE STOP AND START ECU (+B TERMINAL VOLTAGE)
A476766C09
3.26,0.094 3.646,0.365 0.385,0.271 4.063,0.854 4.146,1.458 true 0.865,0.135 1.177,0.333 0.313,0.198 10 false *a 4.073,1.5 4.688,1.698 0.615,0.198 10 false +B 3.302,0.146 3.917,0.344 0.615,0.198 10 false A169
*a Component with harness connected
(Engine Stop and Start ECU) 		- -


a.

Turn the ignition switch to ON.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
A169-1 (+B) - Body ground Ignition switch ON 9.5 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE ENGINE STOP AND START ECU

Click hereEngine / Hybrid System>STOP AND START>ENGINE STOP AND START ECU>REMOVAL


NG

4.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - EFI-MAIN NO. 1 RELAY)
4.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - EFI-MAIN NO. 1 RELAY)
a.

Disconnect the A169 engine stop and start ECU connector.


b.

Remove the EFI-MAIN NO. 1 relay from the No. 1 engine room relay block.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A169-1 (+B) - EFI-MAIN NO. 1 relay terminal 3 Always Below 1 Ω
A169-1 (+B) - Body ground and other terminals Always 10 kΩ or higher
EFI-MAIN NO. 1 relay terminal 3 - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.INSPECT EFI-MAIN NO. 1 RELAY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.INSPECT EFI-MAIN NO. 1 RELAY

Click hereEngine / Hybrid System>M20A-FKS, M20C-FKS, M20E-FKS (ENGINE CONTROL)>RELAY>ON-VEHICLE INSPECTION

Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 1 RELAY - BODY GROUND)

NG

REPLACE EFI-MAIN NO. 1 RELAY

6.CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 1 RELAY - BODY GROUND)
a.

Remove the EFI-MAIN NO. 1 relay from the No. 1 engine room relay block.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
EFI-MAIN NO. 1 relay terminal 1 - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

7.CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 1 RELAY - POWER SOURCE)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 1 RELAY - POWER SOURCE)
a.

Remove the EFI-MAIN NO. 1 relay from the No. 1 engine room relay block.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
EFI-MAIN NO. 1 relay terminal 2 - Body ground Always 9.5 to 14 V
EFI-MAIN NO. 1 relay terminal 5 - Body ground Always 9.5 to 14 V



Result:
Proceed to
OK
NG



OK

GO TO ECM POWER SOURCE CIRCUIT

Click hereEngine / Hybrid System>M20A-FKS, M20C-FKS, M20E-FKS (ENGINE CONTROL)>SFI SYSTEM>ECM Power Source Circuit


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - POWER DISTRIBUTION BOX ASSEMBLY (IGR NO. 1 RELAY))
a.

Disconnect the I230 engine stop and start ECU connector.


b.

Disconnect the 8B power distribution box assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I230-21 (IGR) - 8B-9 Always Below 1 Ω
I230-21 (IGR) - Body ground and other terminals Always 10 kΩ or higher
8B-9 - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

9.CHECK VEHICLE SPECIFICATION

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.CHECK VEHICLE SPECIFICATION
a.

Check the vehicle specification


Result:
Result Proceed to
w/ Smart Entry and Start System A
w/o Smart Entry and Start System B



A

GO TO SMART ENTRY AND START SYSTEM

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model)>Power Source Mode does not Change to ON (IG)


B

10.INSPECT POWER DISTRIBUTION BOX ASSEMBLY (IGR NO. 1 RELAY)
10.INSPECT POWER DISTRIBUTION BOX ASSEMBLY (IGR NO. 1 RELAY)
a.

Remove the 8B and 8J power distribution box assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
8B-9 (voltmeter positive (+) lead) - 8B-24 (voltmeter negative (-) lead) Auxiliary battery voltage not applied to terminals 8J-1 (auxiliary battery positive (+)) and 8B-36 (auxiliary battery negative (-)) Below 1 V



c.

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

Standard Voltage:
Tester Connection Condition Specified Condition
8B-9 (voltmeter positive (+) lead) - 8B-24 (voltmeter negative (-) lead) Auxiliary battery applied to terminals 8J-1 (auxiliary battery positive (+)) and 8B-36 (auxiliary battery negative (-)) 11 to 14 V



Result:
Proceed to
OK
NG



OK

11.CHECK HARNESS AND CONNECTOR (IGR NO. 1 RELAY - BODY GROUND)

NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

11.CHECK HARNESS AND CONNECTOR (IGR NO. 1 RELAY - BODY GROUND)
a.

Disconnect the 8B and 8C power distribution box assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
8B-36 - Body ground Always Below 1 Ω
8C-41 - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

GO TO ECM POWER SOURCE CIRCUIT

Click hereEngine / Hybrid System>M20A-FKS, M20C-FKS, M20E-FKS (ENGINE CONTROL)>SFI SYSTEM>ECM Power Source Circuit


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR