DTC B1554

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DTC B1554

B3E090201072W19

DTC B1554 | Decklid release circuit short to ground
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DETECTION CONDITION | Short to GND in wiring harness between PJB and trunk lid key cylinder push switch
POSSIBLE CAUSE | • Short to GND in wiring harness between PJB terminal J-06 AB and trunk lid key cylinder switch terminal C • Trunk lid key cylinder switch malfunction • PJB malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | INSPECT TRUNK LID KEY CYLINDER SWITCH CONNECTOR • Disconnect the trunk lid key cylinder switch connector. • Inspect the trunk lid key cylinder switch 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 TRUNK LID KEY CYLINDER SWITCH SIGNAL CIRCUIT FOR SHORT TO GND • Inspect for continuity between PJB terminal J-06 AB (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 5.
No | Go to the next step.
4 | INSPECT TRUNK LID KEY CYLINDER SWITCH • Inspect the trunk lid key cylinder switch. (See TRUNK LID KEY CYLINDER PUSH SWITCH INSPECTION.) • Is there any malfunction? | Yes | Replace the trunk lid key cylinder switch, then go to the next step. (See TRUNK LID KEY CYLINDER 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.