Diagnostic Instructions
Circuit/System Description
The inclination sensor detects changes in the parked angle of the vehicle. If a change greater than 3 degrees for a 7 second period is detected, the vehicles content theft alarm is sounded. The sensor recalibrates itself each time the vehicle is
parked, which allows it to account for parking on steep grades without unintentional activation.
Reference Information
Schematic Reference
Theft Deterrent System Schematics
Connector End View Reference
Theft Deterrent System Connector End Views
Description and Operation
Content Theft Deterrent (CTD) Description and Operation
Electrical Information Reference
Scan Tool Reference
Scan Tool Data List
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the inclination sensor.
- Ignition OFF, test for less than 1.0 ohm of resistance between the low reference circuit terminal 4 and ground.
⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If circuit tests normal, replace the BCM. |
- Ignition ON, verify a test lamp illuminates between the B+ circuit terminal 1 and ground.
⇒ | If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. |
- Verify the scan tool Inclination Sensor parameter is Inactive.
⇒ | If not the specified range, test the signal circuit terminal 3 for a short to ground or an open/high resistance. If the circuit tests normal, replace the XBCM. |
- Install a 3 A fused jumper wire between the signal circuit terminal 3 and the low reference circuit terminal 4. Verify the scan tool Inclination Sensor Parameter is Active.
⇒ | If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the XBCM. |
- If all circuits test normal, replace the inclination sensor.
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
Refer to
Control Module References
for BCM and XBCM replacement, setup, and programming.