C0287
DTC C0187, C0196, C019B, C0287, or C0297
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (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/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 (Electrical Diagrams)
Connector End View Reference
Component Connector End Views (Connector End Views By Name)
Description and Operation
ABS Description and Operation (Description and Operation)
Electrical Information Reference
* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)
Scan Tool Reference
Control Module References (Programming and Relearning) 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.
• If any listed DTC is present, perform the Vehicle Yaw Sensor Learn (Testing and Inspection).
2. Inspect the B119 Multi-axis Acceleration Sensor for correct installation.
• If loose or incorrect installation is diagnosed, correct the installation of the component and perform the Vehicle Yaw Sensor Learn (Testing and Inspection).
3. Ignition OFF, disconnect the harness connector at the B119 Multi-axis Acceleration Sensor.
4. Test for less than 5 ohm between the ground circuit terminal 6 and ground.
• If greater than the specified value, test the ground circuit for an open/high resistance.
5. Ignition ON, test for greater than 11 V between the 12 V reference circuit terminal 5 and ground.
• 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.
6. If all circuits test normal, replace the B119 Multi-axis Acceleration Sensor and verify the DTC does not reset.
• If the DTC resets, replace the K17 Electronic Brake Control Module.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Vehicle Yaw Sensor Replacement (Service and Repair)
* Control Module References (Programming and Relearning) for EBCM replacement, setup and programming