Chevrolet Silverado / GMC Sierra. Service manual — part 712

consecutive drive cycles.

Reference Information

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation (With JL4) or ABS Description and Operation (Without
JL4)

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections

Wiring Repairs

Scan Tool Reference

Control Module References for Scan Tool Information

Circuit/System Verification

1. Ignition ON, observe the scan tool Lateral Accelerometer Signal parameter. The reading

should be 2.3-2.7 volts.

2. Ignition ON, observe the scan tool Yaw Rate Sensor parameter. The reading should be 2.3-

2.7 volts.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the yaw rate/lateral accelerometer.

2. Test for less than 2 ohms of resistance between the ground circuit terminal 1 and ground.

If greater than the specified range, test the ground circuit for an open/high resistance.

2008 Chevrolet Silverado 1500

2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

3. Ignition ON, test for 11.8 - 12.2 volts between the 12-volt reference circuit terminal 4 and

ground.

If less than the specified range, test the 12-volt reference circuit for a short to ground
or an open/high resistance. If the circuit tests normal, replace the EBCM.

4. Test for 5.5-7.0 volts between the CAN circuit terminal 3 and ground.

If greater than the specified range, test the CAN circuit for a short to voltage. If the
circuit tests normal, replace the EBCM.

If less than the specified range, test the CAN circuit for a short to ground or an
open/high resistance. If the circuit tests normal, replace the EBCM.

5. Test for 5.5-7.0 volts between the CAN circuit terminal 2 and ground.

If greater than the specified range, test the CAN circuit for a short to voltage. If the
circuit tests normal, replace the EBCM.

If less than the specified range, test the CAN circuit for a short to ground or an
open/high resistance. If the circuit tests normal, replace the EBCM.

6. Test for infinite ohm of resistance between the CAN circuit High, and Low terminals 2 and

3.

If less than the specified range, test the CAN circuits for a shorted to each other. If the
circuit tests normal, replace the EBCM.

7. If all circuits test normal, test or replace the yaw rate/lateral accelerometer sensor.

Repair Procedures

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for EBCM replacement, setup and programming

DTC C0196

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC C0196 00

Yaw Rate Circuit

2008 Chevrolet Silverado 1500

2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

DTC C0196 5A

Yaw Rate Circuit Plausibility Failure

Diagnostic Fault Information

Circuit/System Description

The lateral accelerometer and the yaw rate 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 usable output signal is
a serial data signal CAN high and CAN low serial data circuits.

Conditions for Running the DTC

The ignition switch is in the ON position.

Conditions for Setting the DTC

The yaw/lateral combination 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 vehicle stability enhancement system (VSES) is disabled.

Traction control system (TCS) is disabled.

The TCS/VSES indicators turn ON.

The driver information center (DIC) displays the Service Traction Control, and or Service

Circuit

Short to

Ground

Open/High

Resistance

Short to

Voltage

Signal

Performance

Yaw Rate Supply Voltage
Circuit

C0196 00

C0196 00

-

-

Yaw Rate CAN Bus High
Circuit

C0196 00

C0196 00

C0196 00

C0196 5A

Yaw Rate CAN Bus Low
Circuit

C0196 00

C0196 00

C0196 00

C0196 5A

Yaw Rate Ground Circuit

-

C0196 00

-

-

2008 Chevrolet Silverado 1500

2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

StabiliTrak message.

Conditions for Clearing the DTC

The condition for the DTC is no longer present.

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

Diagnostic Aids

Possible causes of this DTC are as follows:

CAN HI and CAN LO circuits shorted together

CAN HI or CAN LO circuit shorted to ground

CAN HI or CAN LO circuit shorted to voltage

Reference Information

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation (With JL4) or ABS Description and Operation (Without
JL4)

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections

Wiring Repairs

Scan Tool Reference

Control Module References for Scan Tool Information

2008 Chevrolet Silverado 1500

2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado