DTC B1350


id0902j0834100

DTC B1350

Heated backlite relay short to ground

DETECTION CONDITION

Short to GND or power supply in wiring harness between PJB and rear window defroster relay

POSSIBLE CAUSE

• Open circuit in wiring harness between PJB terminal J-01 AH and rear window defroster relay terminal E
• Short to GND in wiring harness between PJB terminal J-01 AH and rear window defroster relay terminal E
• Short to power supply in wiring harness between PJB terminal J-01 AH and rear window defroster relay terminal E
• Rear window defroster relay malfunction
• PJB malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT REAR WINDOW DEFROSTER RELAY CONNECTOR
• Turn the ignition switch off.
• Disconnect the rear window defroster relay connector.
• Inspect the rear window defroster relay 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 7.
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 7.
No
Go to the next step.
3
INSPECT REAR WINDOW DEFROSTER RELAY CONTROL CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between PJB terminal J-01 AH (wiring harness-side) and rear window defroster relay terminal E (wiring harness-side).
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible short to GND, then go to Step 7.
4
INSPECT REAR WINDOW DEFROSTER RELAY CONTROL CIRCUIT FOR SHORT TO GND
• Inspect for continuity between PJB terminal J-01 AH (wiring harness-side) and body GND.
• Is there continuity?
Yes
Repair or replace the wiring harness for a possible short to GND, then go to Step 7.
No
Go to the next step.
5
INSPECT REAR WINDOW DEFROSTER RELAY CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between PJB terminal J-01 AH (wiring harness-side) and body GND.
• Is the voltage B+?
Yes
Repair or replace the wiring harness for a possible short to power supply, then go to Step 7.
No
Go to the next step.
6
INSPECT REAR WINDOW DEFROSTER RELAY
• Inspect the rear window defroster relay.
• Is there any malfunction?
Yes
Replace the rear window defroster relay, then go to the next step.
No
Go to the next step.
7
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.