C0132

DTC C0132

Circuit Description
During calibration of the offset of the pressure sensor signal, the pressure sensor signal offset value must be in the range of 1 - 15 Bar (1 - 434 psi).

The pressure sensor is also monitored for sensitivity via a correlation between estimated vehicle deceleration and the pressure sensor signal. This is monitored over the course of numerous straight line non ABS braking stops.

DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C0132 Antilock Brake System (ABS)/Traction Control System (TCS) Pressure Circuit Range/Performance

Conditions for Running the DTC
^ The ignition is ON.
^ The vehicle speed is greater than 40 km/h (25 mph).

Conditions for Setting the DTC
^ The sensor signal offset value is out of range for more than 1 second.
^ The brake pedal is not applied.
^ The ABS pump is not on.
^ The brake pressure sensor sensitivity is outside a predetermined range.
^ The brake pressure sensor indicates low brake fluid pressure, and the brake pedal position sensor indicates brakes applied.

Action Taken When the DTC Sets
If equipped, the following actions occur:
^ The electronic brake control module (EBCM) disables the ABS/TCS/vehicle stability enhancement system (VSES) for the duration of the ignition cycle.
^ A malfunction DTC will set.
^ The ABS indicator turns ON.
^ The Stability Off indicator turns ON.
^ The Red BRAKE Warning indicator could turn on.

Conditions for Clearing the DTC
^ The condition for the DTC is no longer present.
^ A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
^ Using a scan tool

Diagnostic Aids
^ A malfunctioning pressure sensor
^ A malfunctioning EBCM
^ Test the brake pedal position sensor (BPPS) for proper operation, and adjustment. A improperly adjusted BPPS will set the DTC.








Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. Tests for DTCs set in the Body Control Module BCM Lighting Systems for a malfunctioning brake pedal position sensor BPPS.
3. Tests for specified voltage on the brake pressure signal circuit.
4. Checks to see if voltage was below specified voltage.
5. Checks to see if voltage was above specified voltage.
6. Checks to see if voltage was above specified voltage of 5-volt reference.
7. Checks to see if 5-volt reference from EBCM is 5 volts.
8. Checks to see if resistance of ground circuit is less than 5 ohms.
9. Tests for short to voltage in the 5-volt reference circuit.
10. Tests for a short to ground, a high resistance or an open in the 5-volt reference circuit.
11. Tests for a short to voltage in the brake pressure sensor signal circuit.
12. Tests for a high resistance or an open in the ground circuit.
13. Checks to brake pressure sensor connector for poor connections.
14. Checks to EBCM connector for poor connections.