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DTC C0187, C0196, C019B, C0287, or C0297

DTC C0187, C0196, C019B, C0287, or C0297

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 C0187 5A

Lateral Acceleration Sensor Circuit Not Plausible

DTC C0196 5A

Yaw Rate Circuit Not Plausible

DTC C019B 5A

Yaw Rate Signal Not Plausible

DTC C0287 5A

Longitudinal Acceleration Sensor Circuit Not Plausible

DTC C0297 4A

Lost Communication with Yaw Rate Sensor Checksum Error

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
12V Reference

U0125, U0126

U0125, U0126

-

-

CAN Bus High Serial Data

U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140

U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140

U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140

C0187 5A, C0196 5A, C019B 5A, C0287 5A

CAN Bus Low Serial Data

U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140

U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140

U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140

C0187 5A, C0196 5A, C019B 5A, C0287 5A

Ground

-

U0125

-

-



Circuit/System Description

The yaw rate, lateral acceleration and longitudinal acceleration sensors are combined into one multi-axis acceleration sensor, external to the electronic brake control module (EBCM). The EBCM supplies a 12 V reference voltage to the multi-axis acceleration sensor. The multi-axis acceleration sensor communicates with the EBCM via the high speed controller area network (CAN) serial data circuit. The EBCM activates the stability control function depending on multi-axis acceleration sensor input.

Conditions for Running the DTC

Ignition ON

Conditions for Setting the DTC


C0187 5A

No lateral acceleration sensor signal

The lateral acceleration sensor signal is not plausible with the yaw rate sensor signal, steering angle sensor signal and vehicle speed.

The lateral acceleration sensor offset is out of specified range.



C0196 5A

No yaw rate sensor signal

The yaw rate sensor signal is not plausible with the lateral acceleration sensor signal, steering angle sensor signal and vehicle speed.

The yaw rate sensor offset is out of specified range.


C019B 5A

The yaw rate sensor signal is out of specified range.


C0287 5A

No longitudinal acceleration sensor signal

The longitudinal acceleration sensor signal is not plausible with the vehicle acceleration.

The longitudinal acceleration sensor offset is out of specified range.


C0297 4A

A wrong multi-axis acceleration sensor is installed.

Action Taken When the DTC Sets


C0187 5A, C0196 5A, C019B 5A, and C0297 4A

The EBCM disables the stability control and hill start assist for the duration of the ignition cycle.

The traction control/stability control-active indicator turns ON.


C0287 5A

The EBCM disables the hill start assist for the duration of the ignition cycle.

Conditions for Clearing the DTC


A current DTC clears when the diagnostic runs and passes.

The EBCM will turn OFF the indicator in the next ignition cycle.


Reference Information

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component 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

Control Module References for scan tool information

Circuit/System Testing


1. Ignition ON, verify that DTC C0187 5A, C0196 5A, C019B 5A, and C0287 5A is not present.

2. If any listed DTC is present, perform the Vehicle Yaw Sensor Learn .

3. Inspect the B119 Multi-axis Acceleration Sensor for correct installation.

4. If loose or incorrect installation is diagnosed, correct the installation of the component and perform the Vehicle Yaw Sensor Learn .

5. Ignition OFF, disconnect the harness connector at the B119 Multi-axis Acceleration Sensor.

6. Test for less than 5 Ω between the ground circuit terminal 6 and ground.

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

8. Ignition ON, test for greater than 11 V between the 12 V reference circuit terminal 5 and ground.

9. If less than the specified value, test the 12 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K17 Electronic Brake Control Module.

10. If all circuits test normal, replace the B119 Multi-axis Acceleration Sensor and verify the DTC does not reset.

11. If the DTC resets, replace the K17 Electronic Brake Control Module.


Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.


Vehicle Yaw Sensor with Vehicle Lateral and Longitudinal Accelerometer Replacement

Control Module References for EBCM replacement, setup and programming