C1292

DTC C1292, C1293, Or C1296:

DTC C1292, C1293, Or C1296 (cont'd):

DTC C1292, C1293, or C1296

Circuit Description
The EBCM uses the input from the brake fluid pressure sensor for more accurate braking control during VSES.

Conditions for Running the DTC

C1292
The ignition is ON.

C1293
The vehicle speed is greater than 40 km/h (25 mph).

C1296
The ignition is ON for 1.2 seconds.

Conditions for Setting the DTC

C1292
The brake fluid pressure is less than 345 kPa (50 psi) for 3 deceleration cycles.

C1293
The brake fluid pressure is greater than 552 kPa (80 psi) for 2 consecutive ignition cycles.

C1296
One of the following conditions exists:
^ The brake fluid pressure sensor signal is greater than 4.9 volts for 2 minutes.
^ The brake fluid pressure sensor signal is less than 0.14 volts for 0.1 seconds.

Action Taken When the DTC Sets
^ The EBCM disables the VSES for the duration of the ignition cycle.
^ The DIC displays the Service Stability System message.
^ The ABS/TCS remains functional.

Conditions for Clearing the DTC
^ The condition for the DTC is no longer present (the DTC is not current) and you used the scan tool Clear DTC function.
^ The condition for the DTC is no longer present (the DTC is not current) and you used the On-Board Diagnostics Clear DTC function.
^ The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids
^ Find out from the driver under what conditions the DTC was set (when the DIC displayed the Service Active Handling message). This information will help to duplicate the failure.
^ The Snapshot function on the scan tool can help find an intermittent DTC.
^ A deceleration cycle consists of the following sequence:
1. The vehicle speed is greater than 24 km/h (15 mph).
2. The vehicle decelerates more than 8 km/h/second (5 mph/second) for 2 seconds.
3. The vehicle speed decelerates to less than 16 km/h (10 mph).

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 for a high resistance or an open in the low reference circuit.