Diagnostic procedure
DTC B1318 DIAGNOSTIC PROCEDURE
| STEP |
INSPECTION |
ACTION |
| 1 |
INSPECT DTC FROM PCM
- Connect the M-MDS to the DLC-2.
- Are any DTCs from the PCM displayed?
|
Yes |
Perform DTC inspection.
(See
DTC TABLE
.) 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 PJB POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT
- Disconnect the negative battery cable.
- Disconnect the positive battery cable.
- Inspect for continuity between following terminals:
- PJB terminal J-01 F (wiring harness-side) - battery positive terminal (wiring harness-side)
- PJB terminal J-03 AP (wiring harness-side) - battery positive terminal (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 5. |
| 4 |
INSPECT PJB POWER SUPPLY CIRCUIT FOR SHORT TO GND
- Inspect for continuity between following terminals:
- PJB terminal J-01 F (wiring harness-side) - body GND
- PJB terminal J-03 AP (wiring harness-side) - body GND
- Is there continuity?
|
Yes |
Repair or replace the wiring harness for a possible short to GND, 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 M-MDS.
- Turn the ignition switch to LOCK position then ON position.
- Is the same DTC present?
|
Yes |
Replace the PJB.
(See
PASSENGER JUNCTION BOX (PJB) REMOVAL/INSTALLATION
.) |
| No |
DTC troubleshooting completed. |