PRE-RELEASE
DTC C0187, C0196, C019B, C0287, or C0297
| DTC C0187, C0196, C019B, C0287, or C0297 |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| 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 |
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12V Reference
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U0125, U0126
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U0125, U0126
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-
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-
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CAN Bus High Serial Data
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U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140
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U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140
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U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140
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C0187 5A, C0196 5A, C019B 5A, C0287 5A
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CAN Bus Low Serial Data
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U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140
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U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140
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U0073, U0074, U0100, U0101, U0104, U0125, U0126, U0128, U0136, U0139, U0140
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C0187 5A, C0196 5A, C019B 5A, C0287 5A
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Ground
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-
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U0125
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-
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-
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| 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
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No lateral acceleration sensor signal
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The lateral acceleration sensor signal is not plausible with the yaw rate sensor signal, steering angle sensor signal and vehicle speed.
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The lateral acceleration sensor offset is out of specified range.
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C0196 5A
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No yaw rate sensor signal
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The yaw rate sensor signal is not plausible with the lateral acceleration sensor signal, steering angle sensor signal and vehicle speed.
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The yaw rate sensor offset is out of specified range.
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C019B 5A
The yaw rate sensor signal is out of specified range.C0287 5A
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No longitudinal acceleration sensor signal
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The longitudinal acceleration sensor signal is not plausible with the vehicle acceleration.
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The longitudinal acceleration sensor offset is out of specified range.
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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
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The EBCM disables the stability control and hill start assist for the duration of the ignition cycle.
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The traction control/stability control-active indicator turns ON.
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C0287 5A
The EBCM disables the hill start assist for the duration of the ignition cycle.| Conditions for Clearing the DTC |
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A current DTC clears when the diagnostic runs and passes.
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The EBCM will turn OFF the indicator in the next ignition cycle.
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| 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
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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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.
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| 2. |
If any listed DTC is present, perform the
Vehicle Yaw Sensor Learn
.
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| 3. |
Inspect the B119 Multi-axis Acceleration Sensor for correct installation.
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| 4. |
If loose or incorrect installation is diagnosed, correct the installation of the component and perform the
Vehicle Yaw Sensor Learn
.
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| 5. |
Ignition OFF, disconnect the harness connector at the B119 Multi-axis Acceleration Sensor.
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| 6. |
Test for less than 5 Ω between the ground circuit terminal 6 and ground.
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| 7. |
If greater than the specified range, test the ground circuit for an open/high resistance.
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| 8. |
Ignition ON, test for greater than 11 V between the 12 V reference circuit terminal 5 and ground.
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| 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.
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| 10. |
If all circuits test normal, replace the B119 Multi-axis Acceleration Sensor and verify the DTC does not reset.
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| 11. |
If the DTC resets, replace the K17 Electronic Brake Control Module.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Vehicle Yaw Sensor with Vehicle Lateral and Longitudinal Accelerometer Replacement
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Control Module References
for EBCM replacement, setup and programming
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