RM36D0EC _58 Vehicle Interior _083092 DOOR LOCK _0712251 WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Entry and Start System) J

DOOR LOCK  WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Smart Entry and Start System)  No Answer-Back  


DESCRIPTION

In some cases, wireless door lock control functions are normal but the hazard warning light answer-back function does not operate. In such cases, hazard warning light signal output from the main body ECU (multiplex network body ECU) may be malfunctioning.

WIRING DIAGRAM

B537409E01
0.125,1.844 3.188,2.021 3.063,0.177 10 false Main Body ECU (Multiplex Network Body ECU) 5.146,1.844 7.094,2.156 1.948,0.313 10 false Combination Meter Assembly 0.635,2.396 7.052,2.594 6.417,0.198 10 false : CAN Communication Line

CAUTION / NOTICE / HINT

NOTICE:
·

Before performing the inspection, check that DTC B124296 (wireless door lock control) is not output.

Click hereVehicle Interior>DOOR LOCK>WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Smart Entry and Start System)>DTC CHECK / CLEAR

·

If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.



PROCEDURE

1.CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS
a.

Check the wireless door lock control function using the electrical key transmitter sub-assembly.

Click hereVehicle Interior>DOOR LOCK>WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Smart Entry and Start System)>OPERATION CHECK


Result:
Result Proceed to
Wireless door lock/unlock operates properly. A
Wireless door lock/unlock does not operate properly. B



A

2.READ VALUE USING GTS (Each Door Lock Position Status)

B

GO TO PROBLEM SYMPTOMS TABLE

Click hereVehicle Interior>DOOR LOCK>WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Smart Entry and Start System)>PROBLEM SYMPTOMS TABLE


2.READ VALUE USING GTS (Each Door Lock Position Status)
a.

Read the Data List according to the display on the GTS.

Click hereVehicle Interior>DOOR LOCK>WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Smart Entry and Start System)>DATA LIST / ACTIVE TEST

Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
FR Door Lock Position Switch Status Front door RH unlock detection switch signal Lock or Unlock Lock: Front door RH locked
Unlock: Front door RH unlocked 		-
FL Door Lock Position Switch Status Front door LH unlock detection switch signal Lock or Unlock Lock: Front door LH locked
Unlock: Front door LH unlocked 		-
RR Door Lock Position Switch Status Rear door RH unlock detection switch signal Lock or Unlock Lock: Rear door RH locked
Unlock: Rear door RH unlocked 		-
RL Door Lock Position Switch Status Rear door LH unlock detection switch signal Lock or Unlock Lock: Rear door LH locked
Unlock: Rear door LH unlocked 		-
Body Electrical > Main Body > Data List
Tester Display
FR Door Lock Position Switch Status
FL Door Lock Position Switch Status
RR Door Lock Position Switch Status
RL Door Lock Position Switch Status
50003 449 20,21,22,23

OK:

The GTS display changes correctly in response to the lock/unlock operation.


Result:
Proceed to
OK
NG



OK

3.CHECK HAZARD WARNING LIGHTS OPERATION

NG

GO TO LIGHTING SYSTEM (Proceed to Door Unlock Detection Switch Circuit)

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM>Door Unlock Detection Switch Circuit


3.CHECK HAZARD WARNING LIGHTS OPERATION
a.

Check that the hazard warning lights blink when the hazard warning signal switch is pressed.

OK:

Hazard warning lights blink.



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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


NG

GO TO LIGHTING SYSTEM (Proceed to Hazard Warning Switch Circuit)

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>Hazard Warning Switch Circuit