DTC B109F:86 [THEFT-DETERRENT SYSTEM]

id0902g7850100

DESCRIPTION | Signal error from intruder sensor
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DETECTION CONDITION | • Theft-deterrent control module receives the error signal from intruder sensor.
POSSIBLE CAUSE | • Intruder sensor connector or terminals malfunction • Theft-deterrent control module connector or terminals malfunction • Short to ground in wiring harness between intruder sensor terminal C and theft-deterrent control module terminal C • Short to power supply in wiring harness between intruder sensor terminal C and theft-deterrent control module terminal C • Intruder sensor malfunction • Theft-deterrent control module malfunction

Diagnostic Procedure

Step | Inspection | Action
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1 | INSPECT INTRUDER SENSOR CONNECTOR • Turn the ignition switch to the OFF position. • Disconnect the negative battery cable. • Disconnect the intruder sensor connector. • Inspect the intruder sensor connector. (Corrosion, damage, and disconnected pins) • Is there any malfunction? | Yes | Repair or replace the connector or terminals, then go to Step 6.
No | Go to the next step.
2 | INSPECT THEFT-DETERRENT CONTROL MODULE CONNECTOR • Disconnect the theft-deterrent control module connector. • Inspect the theft-deterrent control module connector. (Corrosion, damage, and disconnected pins) • Is there any malfunction? | Yes | Repair or replace the connector or terminals, then go to Step 6.
No | Go to the next step.
3 | INSPECT INTRUDER SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND • Verify that the intruder sensor and theft-deterrent control module connectors are disconnected. • Inspect for continuity between intruder sensor terminal C (wiring harness-side) and body ground. • Is there continuity? | Yes | Repair or replace the wiring harness for a possible short to ground, then go to Step 6.
No | Go to the next step.
4 | INSPECT INTRUDER SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY • Verify that the intruder sensor and theft-deterrent control module connectors are disconnected. • Reconnect the negative battery cable. • Turn the ignition switch to the ON position. • Measure the voltage at the intruder sensor terminal C (wiring harness-side). • Is there any voltage? | Yes | Repair or replace the wiring harness for a possible short to power supply, then go to Step 6.
No | Go to the next step.
5 | INSPECT INTRUDER SENSOR • Inspect the intruder sensor. (See INTRUDER SENSOR INSPECTION.) • Is there any malfunction? | Yes | Replace the intruder sensor, then go to the next step. (See INTRUDER SENSOR REMOVAL/INSTALLATION.)
No | Go to the next step.
6 | VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Reconnect the negative battery cable. • Clear DTCs using the M-MDS. (See CLEARING DTC [THEFT-DETERRENT SYSTEM].) • Perform the theft-deterrent control module DTC inspection using the M-MDS. (See DTC INSPECTION [THEFT-DETERRENT SYSTEM].) • Is the same DTC present? | Yes | Repeat the inspection from Step 1. • If the malfunction recurs, replace the theft-deterrent control module. (See THEFT-DETERRENT CONTROL MODULE REMOVAL/INSTALLATION.) Go to the next step.
No | Go to the next step.
7 | VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [THEFT-DETERRENT SYSTEM].)
No | DTC troubleshooting completed.