C0161

DTC C0161

Circuit Description

The brake pedal position (BPP) sensor is an input to the body control module (BCM). The BCM then sends a serial data message to the electronic brake control module (EBCM) and other electronic control modules. The BPP sensor is a potentiometer type sensor with a 5-volt reference circuit and a low reference circuit. The BCM supplies the 5-volt reference to the BPP.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC C0161 ABS/TCS Brake Switch Circuit

This vehicle has DTCs which include DTC Symptoms. For more information on DTC Symptoms, refer to DTC Symptom Description.





Conditions for Running the DTC

C0161 11

^ The ignition is ON.
^ The vehicle speed is greater than 16 km/h (10 mph).
^ The ignition voltage is greater than 8 volts.

C0161 12

^ The ignition is ON.
^ The ignition voltage is greater than 8 volts.

Conditions for Setting the DTC

C0161 11

^ The brake pedal is sensed as applied.
^ The vehicle speed is greater than 40 km/h (25 mph).
^ The vehicles acceleration exceeds 8 km/h per second (5 mph per second).

C0161 12

^ Brake pedal is not applied.
^ Traction control is not active.
^ The vehicle has reached speed greater than 24 km/h (14 mph).
^ The vehicles deceleration exceeds 11.5 km/h per second (7 mph per second).
^ Conditions for setting the DTC occur 3 times.

Action Taken When the DTC Sets

No systems are disabled and no warning indicators or messages will appear.

Diagnostic Aids

The DTC C0161.11 can be set if the vehicle has been driven with the brake applied during acceleration.

Test Description

The numbers below refer to the step numbers on the diagnostic table.
2. This step checks if there is other DTCs that can cause the BPP failure.
4. This step checks to see if the DTC will reset as current.

Step 1 - Step 4: