DTC B109F:87 [THEFT-DETERRENT SYSTEM]
id0902g7850200
DESCRIPTION |
Communication error between intruder sensor and theft-deterrent control module |
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DETECTION CONDITION
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• Theft-deterrent control module detects the communication error between intruder sensor and theft-deterrent control module.
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POSSIBLE CAUSE
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• 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
• Open circuit in wiring harness between intruder sensor terminal C and theft-deterrent control module terminal C
• Intruder sensor malfunction
• Theft-deterrent control module malfunction
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Diagnostic Procedure
Step |
Inspection |
Action |
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1
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INSPECT INTRUDER SENSOR CONNECTOR
• Turn the ignition switch to the LOCK 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?
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Yes
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Repair or replace the intruder sensor connector or terminal, then go to Step 7.
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No
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Go to the next step.
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2
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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?
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Yes
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Repair or replace the theft-deterrent control module connector or terminal, then go to Step 7.
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No
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Go to the next step.
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3
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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?
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Yes
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Repair or replace the wiring harness for a possible short to ground, then go to Step 7.
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No
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Go to the next step.
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4
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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?
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Yes
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Repair or replace the wiring harness for a possible short to power supply, then go to Step 7.
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No
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Go to the next step.
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5
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INSPECT INTRUDER SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT
• Verify that the intruder sensor and theft-deterrent control module connectors are disconnected.
• Turn the ignition switch to the LOCK position.
• Disconnect the negative battery cable.
• Inspect for continuity between intruder sensor terminal C (wiring harness-side) and theft-deterrent control module terminal C (wiring harness-side).
• Is there continuity?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness for a possible open circuit, then go to Step 7.
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6
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INSPECT INTRUDER SENSOR
• Inspect the intruder sensor.
(See INTRUDER SENSOR INSPECTION.)
• Is there any malfunction?
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Yes
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Replace the intruder sensor, then go to the next step.
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No
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Go to the next step.
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7
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VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Reconnect the negative battery cable.
• Clear DTCs using the M-MDS.
• Perform the theft-deterrent control module DTC inspection using the M-MDS.
• Is the same DTC present?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, replace the theft-deterrent control module.
Go to the next step.
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No
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Go to the next step.
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8
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VERIFY THAT NO OTHER DTCs ARE PRESENT
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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