DTC B1320

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DTC B1320

B3E090201072W08

DTC B1320 | Door ajar LF circuit open
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DETECTION CONDITION | Open circuit in wiring harness between PJB and front door latch switch (driver-side)
POSSIBLE CAUSE | • Open circuit in wiring harness between PJB terminal J-06 W and front door latch and lock actuator (driver-side) terminal G • Front door latch and lock actuator malfunction • PJB malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1

INSPECT FRONT DOOR LATCH AND LOCK ACTUATOR (DRIVER-SIDE) CONNECTOR
• Turn the ignition switch off.
• Disconnect the front door latch and lock actuator (driver-side) connector.
• Inspect the front door latch and lock actuator (driver-side) 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 FRONT DOOR LATCH AND LOCK ACTUATOR (DRIVER-SIDE) SIGNAL CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between PJB terminal J-06 W (wiring harness-side) and front door latch and lock actuator (driver-side) terminal G (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 FRONT DOOR LATCH AND LOCK ACTUATOR (DRIVER-SIDE) • Inspect the front door latch and lock actuator (driver-side). (See FRONT DOOR LATCH AND LOCK ACTUATOR INSPECTION.) • Is there any malfunction? | Yes | Replace the front door latch and lock actuator (driver-side), then go to the next step. (See FRONT DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.)
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.
(See PASSENGER JUNCTION BOX (PJB) REMOVAL/INSTALLATION.)

No | DTC troubleshooting completed.