C0192

DTC C0192

Test 1-8:

Test 9-16:

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.

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 yaw rate sensor input voltage is less than 0.15 volts.
^ The yaw rate 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
The following conditions can cause this concern:
^ The longitudinal accelerometer circuit is open, shorted to ground, or shorted to battery.
^ Internal longitudinal accelerometer malfunction.
^ Internal EBCM malfunction.

Test Description
The numbers below refer to the step numbers on the diagnostic table.
3. Tests for the proper operation of the circuit in the low voltage range.
4. Tests for the proper operation of the circuit in the high voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to ground.
5. Tests for a short to voltage in the 5-volt reference circuit.
6. Tests the bias voltage of the longitudinal accelerometer sensor.