C0192

DTC C0192

Circuit Description
The longitudinal accelerometer is used to determine straight-line acceleration. This information is used when calculating the desired Traction Control in AWD applications.

DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C0192 All Wheel Drive (AWD)/Four Wheel Drive (4WD) Reference Accelerometer Circuit Range/Performance

Conditions for Running the DTC
^ The ignition is ON.
^ Ignition voltage is greater than 8 volts.

Conditions for Setting the DTC
One of the following conditions exist:
^ The longitudinal accelerometer sensor input voltage is less than 0.15 volts.
^ The longitudinal accelerometer sensor input voltage is greater than 4.85 volts for 1 seconds.
^ The longitudinal accelerometer bias exceeds 0.5 g.
^ The longitudinal accelerometer signal is not increased by 0.5 volts during longitudinal accelerometer self test.

Action Taken When the DTC Sets
^ TCS is degraded.
^ The TCS indicators turn ON.
^ The ABS remains functional.

Conditions for Clearing the DTC
^ The condition for the DTC is no longer present and the DTC is cleared with a scan tool.
^ The electronic brake control module (EBCM) automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids
Thoroughly inspect connections and wiring that may cause an intermittent malfunction.








Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. This step tests for the proper voltage output on the 5-volt reference circuit and the proper operation of the signal circuit.
3. This step tests for possible low 5-volt reference output or a problem with the signal circuit.
4. This step tests for a short to voltage on the 5-volt reference circuit. If a short to voltage exists, other DTCs may be set for the vehicle stability system if equipped.
8. This step tests for a problem with the low reference circuit. If a short to voltage exists, other DTCs may be set for the vehicle stability system if equipped.