DTC B2177

#
DTC B2177

B3E090200200W05

DTC B2177 | Intruder sensor circuit failure
--- | ---
DETECTION CONDITION | Intruder sensor malfunction or circuit malfunction

POSSIBLE CAUSE

• Open circuit in wiring harness between PJB terminal J-06 R and intruder sensor terminal B
• Short to power supply in wiring harness between PJB terminal J-06 R and intruder sensor terminal B
• Short to GND in wiring harness between PJB terminal J-06 R and intruder sensor terminal B
• Intruder sensor malfunction
• PJB malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT INTRUDER SENSOR CONNECTOR • Turn the ignition switch off. • Disconnect the intruder sensor connector. • Inspect the intruder sensor 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 6.
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 6.
No | Go to the next step.
3 | INSPECT INTRUDER SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between PJB terminal J-06 R (wiring harness-side) and intruder sensor terminal B (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 6.
4 | INSPECT INTRUDER SENSOR SIGNAL CIRCUIT FOR SHORT TO GND • Inspect for continuity between PJB terminal J-06 R (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 6.
No | Go to the next step.
5 | INSPECT INTRUDER SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between PJB terminal J-06 R (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 the next step.
No | Replace the intruder sensor, then go to the next step. (See INTRUDER SENSOR REMOVAL/INSTALLATION.)
6 | VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the PJB memory using the WDS or equivalent. • Turn the ignition switch to off then ON. • Is the same DTC present? | Yes | Replace the PJB. (See PASSENGER JUNCTION BOX (PJB) REMOVAL/INSTALLATION.)
No | Troubleshooting completed.