GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Acadia - 2WD 🢒 Driver Information and Entertainment 🢒 Cellular, Entertainment, and Navigation 🢒 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

DTC C0196 5A: Yaw Rate Circuit Erratic

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

Ignition Voltage

C0710 00, U2142 00

C0710 00, U2142 00

--

C0710 5A, C0186 5A, C0196 5A

Low Reference

C0710 00, U2142 00

C0710 00, U2142 00

C0710 00, U2142 00

C0710 5A, C0186 5A, C0196 5A

CAN Bus High Serial Data

C0710 00, U2100 00, U2142 00, C0196 00

C0710 00, U2142 00

C0710 00, U2142 00

C0710 5A, C0186 5A, C0196 5A

CAN Bus Low Serial Data

C0710 00, U2142 00

C0710 00, U2142 00

C0710 00, U2100 00, U2142 00

C0710 5A, C0186 5A, C0196 5A

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 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

Antilock Brake System Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Scan Tool Data List for EBCM

Circuit/System Testing
  1. Ignition OFF, disconnect the harness connector at the Yaw Rate/Lateral Accelerometer sensor.
  2. Ignition OFF for 60 seconds, test for less than 5 ohms between the low reference circuit terminal 1 and ground.
    3. ⇒If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the EBCM.
  3. Ignition ON, test for ignition voltage between the ignition voltage circuit terminal 4 and ground.
    4. ⇒If not within the specified range, test the ignition voltage circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the EBCM.
  4. Ignition OFF, disconnect the harness connector at the EBCM.
  5. Ignition ON, test for less than 1 volt between the following terminal listed below and ground.
    6. • CAN Bus High serial data circuit terminal 37
    • CAN Bus Low serial data circuit terminal 24
    ⇒If greater than the specified value, test the appropriate serial data circuit for a short to voltage.
  6. Ignition OFF, test for infinite resistance between the following terminal listed below and ground.
    7. • CAN Bus High serial data circuit terminal 37
    • CAN Bus Low serial data circuit terminal 24
    ⇒If not the specified value, test the appropriate serial data circuit for a short to ground.
  7. Test for less than 2 ohms between the appropriate serial data circuit terminals listed below.
    8. • CAN Bus High serial data circuit terminal 37 at the EBCM harness connector and terminal 3 at the Yaw Rate/Lateral Accelerometer sensor harness connector.
    • CAN Bus Low serial data circuit terminal 24 at the EBCM harness connector and terminal 2 at the Yaw Rate/Lateral Accelerometer sensor harness connector.
    ⇒If greater than the specified range, test the appropriate serial data circuit for an open/high resistance. If the circuit tests normal, replace the steering angle sensor.
  8. Test for infinite resistance between the CAN Bus High serial data circuit terminal 37 and the CAN Bus Low serial data circuit terminal 24.
    9. ⇒If not the specified value, repair the serial data circuits for a short together.
  9. If all circuits test normal, replace the Yaw Rate/Lateral Accelerometer sensor. If the DTC resets, replace the EBCM.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

    •  Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement
    •  Control Module References for EBCM replacement, setup, and programming