2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 865

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 865

DTC C0196 5A

- Yaw Rate Circuit Plausibility Failure

Diagnostic Fault Information

Circuit/System Description

The yaw rate and the lateral accelerometer sensors are combined into one sensor, external to the electronic brake control module (EBCM). The

vehicle stability enhancement system (VSES) uses the lateral accelerometer input when calculating the desired yaw rate. The EBCM supplies the 12

V to the yaw/lateral accelerometer sensor. The yaw/lateral accelerometer sensor communicates with the EBCM via discrete CAN Bus High and

CAN Bus Low serial data circuits.

Conditions for Running the DTC

The engine is running.

Conditions for Setting the DTC

* Short to ground on the CAN High serial data circuit.

* The yaw/lateral accelerometer sensor fails an internal self test.

* Communication is lost between the EBCM and the yaw/lateral combination sensor.

* The correlation error between the yaw/lateral combination sensor and steering angle sensor.

Action Taken When the DTC Sets

One or more of the following actions may occur:

* The EBCM disables the antilock brake system (ABS)/traction control system (TCS) and vehicle stability enhancement system (VSES) for the

duration of the ignition cycle.

* The ABS indicator illuminates.

* The red Brake warning indicator illuminates.

* The StabiliTrak indicator illuminates.

* The driver information center displays All Wheel Drive Off/Service Traction Control/Service StabiliTrak message.

Conditions for Clearing the DTC

* The condition for the DTC is no longer present.

* The EBCM clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids

* The EBCM will shut down if it detects a fault or sets a DTC.

* An incorrectly mounted sensor can set a DTC.

Reference Information

Schematic Reference

Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)

Description and Operation

ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS

Description and Operation)

Electrical Information Reference