RM38T0EC _58 Vehicle Interior _115230 THEFT DETERRENT / KEYLESS ENTRY _0606512 SMART ENTRY AND START SYSTEM(for Start Function, HEV Model) J

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


DESCRIPTION

If the power switch is pressed with the electrical key transmitter sub-assembly in the cabin, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode.

Related Data List and Active Test Items
Problem Symptom Data List and Active Test
Power source mode does not change to on (IG) but does change to on (ACC)
Power Source Control
·

Power Supply Condition

·

IGP Relay Circuit (Outside) Monitor

·

IGP Relay Circuit (Inside) Monitor

·

IGR Relay Circuit (Outside) Monitor

·

IGR Relay Circuit (Inside) Monitor



WIRING DIAGRAM

E455204E11
5.708,1.729 6.323,1.927 0.615,0.198 10 false IGPD 2.198,0.167 3.854,0.677 1.656,0.51 10 false from Auxiliary Battery 2.771,3.021 4.26,3.469 1.49,0.448 10 false IGR-NO. 1 2.76,4.5 4.344,5.052 1.583,0.552 10 false IGR-NO. 2 1.281,2.51 2.375,2.75 1.094,0.24 10 false ECU-IGR NO. 1 1.323,3.99 2.458,4.198 1.135,0.208 10 false ECU-IGR NO. 2 5.5,5.042 7.052,5.792 1.552,0.75 10 false Certification ECU (Smart Key ECU Assembly) 1.781,5.083 3.948,5.385 2.167,0.302 10 false Power Distribution Box Assembly 4.583,1.75 5.198,1.948 0.615,0.198 10 false 8C 4.583,1.542 5.198,1.74 0.615,0.198 10 false 17 4.583,1.198 5.198,1.396 0.615,0.198 10 false 8K 0.865,2.146 1.479,2.344 0.615,0.198 10 false 36 0.854,1.542 1.469,1.74 0.615,0.198 10 false 14 0.854,1.74 1.469,1.938 0.615,0.198 10 false 8E 0.854,3.823 1.469,4.021 0.615,0.198 10 false 8B 0.865,3.625 1.479,3.823 0.615,0.198 10 false 39 2.448,6.51 3.063,6.708 0.615,0.198 10 false 1 3.396,6.51 4.01,6.708 0.615,0.198 10 false 2 3.385,6.125 4,6.323 0.615,0.198 10 false 5 2.448,6.125 3.063,6.323 0.615,0.198 10 false 3 5.5,4.875 6.115,5.073 0.615,0.198 10 false I223 4.625,0.99 5.24,1.188 0.615,0.198 10 false 1 5.698,2.698 6.313,2.896 0.615,0.198 10 false IGRD 2.667,6.906 3.438,7.146 0.771,0.24 10 false IGP-MAIN 4.583,2.708 5.198,2.906 0.615,0.198 10 false 8B 4.594,2.5 5.208,2.698 0.615,0.198 10 false 10 5.427,1.635 6.042,1.833 0.615,0.198 10 false 24 5.438,2.594 6.052,2.792 0.615,0.198 10 false 11 0.854,2.344 1.469,2.542 0.615,0.198 10 false 8C 0.844,3.104 1.458,3.302 0.615,0.198 10 false 8B 0.844,2.896 1.458,3.094 0.615,0.198 10 false 36

CAUTION / NOTICE / HINT

NOTICE:
·

When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

·

The smart entry and start system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart entry and start system (for Start Function) after confirming that the communication systems are functioning properly.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, HEV Model)>HOW TO PROCEED WITH TROUBLESHOOTING

·

Make sure that no DTCs are output. If any DTCs are output, proceed to Diagnostic Trouble Code Chart.

·

If the smart entry and start system (for Start Function) has been disabled, enable the system before performing troubleshooting.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, HEV Model)>CUSTOMIZE PARAMETERS

·

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

·

Before replacing the certification ECU (smart key ECU assembly), refer to Service Bulletin.

·

After completing repairs, confirm that the problem does not recur.

·

After performing repairs, confirm that no DTCs are output by performing "DTC Output Confirmation Operation."



HINT:
·

If interior verification is unsuccessful, vehicle control history (RoB) may be stored.

·

If vehicle control history (RoB) has been stored, refer to the vehicle control history (RoB) list to determine the detection conditions and narrow down trouble areas.



Body Electrical > Entry&Start > Utility
Tester Display
Vehicle Control History (RoB)
50005 440 62

PROCEDURE

1.CHECK FOR DTC
a.

Using the GTS, check for certification ECU (smart key ECU assembly) DTCs.

Body Electrical > Power Source Control > Trouble Codes
50001 454
Body Electrical > Entry&Start > Trouble Codes
50001 440

Result:
Result Proceed to
DTCs are not output A
Smart entry and start system (for Start Function) DTCs are output B



A

2.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) AND BODY GROUND)

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, HEV Model)>DIAGNOSTIC TROUBLE CODE CHART


2.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) AND BODY GROUND)
a.

Disconnect the I223 certification ECU (smart key ECU assembly) connector.


b.

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


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
I223-24 (IGPD) - 8C-17 Always Below 1 Ω
I223-11 (IGRD) - 8B-10 Always Below 1 Ω
8B-36 - Body ground Always Below 1 Ω
I223-24 (IGPD) or 8C-17 - Other terminals and body ground Always 10 kΩ or higher
I223-11 (IGRD) or 8B-10 - Other terminals and body ground Always 10 kΩ or higher



d.

Connect the I223 certification ECU (smart key ECU assembly) connector.


Result:
Proceed to
OK
NG



OK

3.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
a.
B665279C09
1.354,0.031 1.74,0.25 0.385,0.219 2.063,2.031 1.698,0.948 true 2.26,1.865 1.74,0.833 true 1.417,0.052 1.875,0.25 0.458,0.198 10 false I223 2.333,1.771 2.948,1.969 0.615,0.198 10 false IGRD 2.156,1.948 2.771,2.146 0.615,0.198 10 false IGPD 0.188,0.052 0.802,0.25 0.615,0.198 10 false *a
*a Component with harness connected
(Certification ECU (Smart Key ECU Assembly))


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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
I223-11 (IGRD) - Body ground Ignition switch ACC → Ignition switch ON 1 V or less → 9 V or higher
I223-24 (IGPD) - Body ground Ignition switch ACC → Ignition switch ON 1 V or less → 9 V or higher



Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - POWER SOURCE)

NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

4.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - POWER SOURCE)
a.

Disconnect the I223 certification ECU (smart key ECU assembly) connector.


b.

Disconnect the 8B, 8C, 8E and 8K power distribution box assembly connectors.


c.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
8K-1 - Body ground Ignition switch off 11 to 14 V



Result:
Proceed to
OK
NG



OK

5.CHECK POWER DISTRIBUTION BOX ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK POWER DISTRIBUTION BOX ASSEMBLY
a.

Remove the power distribution box assembly.

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


b.

Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.

B574905C26
1.76,0.406 2.135,0.677 0.375,0.271 1.74,2.146 2.115,2.417 0.375,0.271 4.698,0.448 5.073,0.719 0.375,0.271 4.688,2.198 5.063,2.469 0.375,0.271 4.792,0.5 5.104,0.698 0.313,0.198 10 false 8B 1.865,0.458 2.177,0.656 0.313,0.198 10 false 8C 1.844,2.198 2.156,2.396 0.313,0.198 10 false 8E 4.781,2.25 5.094,2.448 0.313,0.198 10 false 8K 0.177,0.146 0.49,0.344 0.313,0.198 10 false *a
*a Component without harness connected
(Power Distribution Box Assembly) 		- -



c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
8C-17 - 8E-14 Always Below 1 Ω



d.

Connect the auxiliary battery terminal (+) to the 8C-17 terminal.


e.

Connect the auxiliary battery terminal (-) to the 8B-36 terminal.


f.

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

Standard Resistance:
Tester Connection Condition Specified Condition
8K-1 - 8C-36 Auxiliary battery voltage applied between terminals 8C-17 and 8B-36 Below 1 Ω
8K-1 - 8B-39 Auxiliary battery voltage applied between terminals 8C-17 and 8B-36 Below 1 Ω



g.

Connect the auxiliary battery terminal (+) to the 8B-10 terminal.


h.

Connect the auxiliary battery terminal (-) to the 8B-36 terminal.


i.

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

Standard Resistance:
Tester Connection Condition Specified Condition
8K-1 - 8C-36 Auxiliary battery voltage applied between terminals 8B-10 and 8B-36 Below 1 Ω
8K-1 - 8B-39 Auxiliary battery voltage applied between terminals 8B-10 and 8B-36 Below 1 Ω



Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY- IGP-MAIN RELAY)

NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


6.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY- IGP-MAIN RELAY)
a.

Disconnect the 8E power distribution box assembly connector.


b.

Remove the IGP-MAIN relay.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
8E-14 - No. 1 engine room relay block assembly IGP relay terminal 1 Always Below 1 Ω
No. 1 engine room relay block assembly IGP relay terminal 2 - Body ground Always Below 1 Ω
8E-14 or No. 1 engine room relay block assembly IGP relay terminal 1 - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

7.INSPECT IGP-MAIN RELAY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.INSPECT IGP-MAIN RELAY
a.
C279145C60
2.031,0.625 1.677,0.385 true 2.604,0.688 2.917,0.479 true 2.385,1.135 2.875,1.135 true 2.448,1.635 2.906,1.635 true 0.24,0.667 0.396,0.865 0.156,0.198 10 false 3 1.188,0.677 1.344,0.875 0.156,0.198 10 false 5 0.24,1.198 0.396,1.396 0.156,0.198 10 false 1 1.188,1.219 1.375,1.417 0.188,0.198 10 false 2 1.552,0.26 1.708,0.458 0.156,0.198 10 false 1 2.969,0.344 3.125,0.542 0.156,0.198 10 false 2 2.979,1.073 3.135,1.271 0.156,0.198 10 false 5 3,1.563 3.156,1.76 0.156,0.198 10 false 3 0.281,0.229 0.542,0.438 0.26,0.208 10 false *1
*1 IGP-MAIN Relay


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

Standard Resistance:
Tester Connection Condition Specified Condition
3 - 5 Auxiliary battery voltage applied between terminals 1 and 2 Below 1 Ω
Auxiliary battery voltage not applied between terminals 1 and 2 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPAIR OR REPLACE HARNESS OR CONNECTOR

NG

REPLACE IGP-MAIN RELAY