DTC B1502


B3E090201072W16

DTC B1502

Light turn signal left circuit short to ground

DETECTION CONDITION

Short to GND in wiring harness between PJB and turn lights

POSSIBLE CAUSE

• Short to GND in wiring harness between PJB terminal J-01 AK and front turn light (LH) terminal A and front side turn light (LH) terminal A
• Short to GND in wiring harness between PJB terminal J-01 L and front turn light (RH) terminal A and front side turn light (RH) terminal A
• Short to GND in wiring harness between PJB terminal J-05 A and rear turn light (LH) terminal A
• Short to GND in wiring harness between PJB terminal J-05 AK and rear turn light (RH) terminal A
• Turn lights malfunction
• PJB malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT TURN LIGHT CONNECTOR
• Disconnect all the turn light connectors.
• Inspect all the turn light connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 5.
No
Go to the next step.
2
INSPECT PJB CONNECTOR
• Disconnect the PJB connector.
• Inspect the PJB connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 5.
No
Go to the next step.
3
INSPECT TURN LIGHT CONTROL CIRCUIT FOR SHORT TO GND
• Inspect for continuity between following terminals:
- PJB terminal J-01 AK (wiring harness-side) - body GND
- PJB terminal J-01 L (wiring harness-side) - body GND
- PJB terminal J-05 A (wiring harness-side) - body GND
- PJB terminal J-05 AK (wiring harness-side) - body GND
• Is there continuity?
Yes
Repair or replace the wiring harness for a possible short to GND, then go to Step 5.
No
Go to the next step.
4
INSPECT TURN LIGHTS
• Inspect all the turn lights.
• Is there any malfunction?
Yes
Replace the turn lights, then go to the next step.
No
Go to the next step.
5
VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PJB memory using the WDS or equivalent.
• Perform the self-test.
(See PJB SELF-TEST.)
• Is the same DTC present?
Yes
Replace the PJB.
No
DTC troubleshooting completed.