DTC B2899

id0902j0836100

DTC B2899

Left turn signal indicator output failure

DETECTION CONDITION

• Open circuit or short to power supply or GND in wiring harness between PJB and turn light
• Turn light bulb malfunction

POSSIBLE CAUSE

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

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT TURN LIGHT CONNECTOR
• Turn the ignition switch off.
• Disconnect all the turn light (LH) connectors.
• Inspect all the turn light (LH) 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 TURN LIGHT CONTROL CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between following terminals:
- PJB terminal J-01 AK (wiring harness-side) - front turn light (LH) terminal A (wiring harness-side)
- PJB terminal J-01 AK (wiring harness-side) - front side turn light (LH) terminal A (wiring harness-side)
- PJB terminal J-05 A (wiring harness-side) - rear turn light (LH) terminal A (wiring harness-side)
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to Step 7.
4
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 AK (wiring harness-side) - body GND
- PJB terminal J-05 A (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 7.
No
Go to the next step.
5
INSPECT TURN LIGHT CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between following terminals:
- PJB terminal J-01 AK (wiring harness-side) - body GND
- PJB terminal J-01 AK (wiring harness-side) - body GND
- PJB terminal J-05 A (wiring harness-side) - 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 TURN LIGHT
• 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.
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.