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DTC C0186, C0196, or C0287

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 C0186 00: Lateral Acceleration Sensor Signal Malfunction

DTC C0186 09: Lateral Acceleration Sensor Signal Too Fast Transitions

DTC C0186 11: Lateral Acceleration Sensor Signal High Input

DTC C0186 18: Lateral Acceleration Sensor Signal Low Signal Amplitude

DTC C0196 00: Yaw Rate Signal Malfunction

DTC C0196 09: Yaw Rate Signal Too Fast Transitions

DTC C0196 0A: Yaw Rate Signal Too Slow Transitions

DTC C0196 11: Yaw Rate Signal High Input

DTC C0196 18: Yaw Rate Circuit Signal Low Signal Amplitude

DTC C0287 00: Longitudinal Acceleration Sensor Circuit Malfunction

DTC C0287 09: Longitudinal Acceleration Sensor Circuit Too Fast Transitions

DTC C0287 11: Longitudinal Acceleration Sensor High Input

DTC C0287 18: Longitudinal Acceleration Sensor Circuit Low Signal Amplitude

Diagnostic Fault Information

Circuit

Short to Ground

Open/High Resistance

Short to Voltage

Signal Performance

Ignition

U0125

U0125

--

--

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. The electronic brake control module supplies ignition voltage to the multi-axis acceleration sensor. The multi-axis acceleration sensor communicates with the electronic brake control module via serial data. The electronic brake control module activates the stability control function depending on multi-axis acceleration sensor input.

Conditions for Running the DTC
    • Vehicle ON or Vehicle in Service Mode.
    • The ignition voltage is greater than 10 V.

Conditions for Setting the DTC

C0186 00, C0186 11, C0186 18, C0196 0A, C0287 00, C0287 09, C0287 11 or C0287 18

The multi-axis acceleration sensor fails an internal self test.

C0196 00, C0196 11, or C0196 18

The yaw sensor is out of specified range.

C0186 09, C0196 09, C0287 00, C0287 09 or C0287 11

The multi-axis acceleration sensor is not mounted properly.

Action Taken When the DTC Sets
    • The stability control indicator turns ON.
    • The Service StabiliTrak message is displayed on the driver information centre.
    • The electronic brake control module disables the electronic stability system for the duration of the ignition cycle.

Conditions for Clearing the DTC
    • In order for the DTC to clear the electronic stability control system must be initialised. Perform the steps listed below to initialise the system:
        1. Vehicle OFF, open the driver door and remove all keyless entry transmitters from the vehicle and secure in a place outside the vehicle.
        2. Close the driver door and let the vehicle sit for 3 minutes.
        3. Vehicle ON, leave the vehicle in Park for greater than 10 seconds.
        4. Drive the vehicle in a straight line at a speed greater than 32 km/h (20 mph) for 30 seconds.
    • The condition for setting the DTC is no longer present.
    • The history DTC will clear after 40 consecutive fault-free drive cycles have occurred.

Diagnostic Aids

DTC C0196 may have been improperly set due to the vehicle being transported on a flat bed truck, car hauler, or by train without it being completely shut down. The electronic stability control system may need to be initialised before the DTC will clear. Refer to Conditions for Clearing the DTC above.

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 Verification

Note: DTC C0196 may have been improperly set due to the vehicle being transported on a flat bed truck, car hauler, or by train without it being completely shut down. The electronic stability control system may need to be initialised before the DTC will clear. Refer to Conditions for Clearing the DTC.

  1. Vehicle in Service Mode.
  2. Verify that DTC U0125 is not set.
    3. ⇒If the DTC is set
        Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
    ⇓   If the DTC is not set
  3. Verify the B119 multi-axis acceleration sensor is installed correctly.
    4. ⇒If loose or incorrect installation
        Correct the installation of the component.
    ⇓   If installed correctly
  4. Perform the Vehicle Yaw Sensor Learn .
  5. Verify the DTC does not set while operating the vehicle under the Conditions for Running the DTC.
    6. ⇒If the DTC sets
        Refer to Circuit/System Testing.
    ⇓   If the DTC does not set
  6. All OK.

Circuit/System Testing

Note: DTC C0196 may have been improperly set due to the vehicle being transported on a flat bed truck, car hauler, or by train without it being completely shut down. The electronic stability control system may need to be initialised before the DTC will clear. Refer to Conditions for Clearing the DTC.

  1. Vehicle OFF and all vehicle systems OFF, disconnect the harness connector at the B119 multi-axis acceleration sensor. It may take up to 2 minutes for all vehicle systems to power down.
  2. Test for less than 10 Ω between the ground circuit terminal 6 and ground.
    3. ⇒If 10 Ω or greater
    2.1. Vehicle OFF.
    2.2. Test for less than 2 Ω in the ground circuit end to end.
    ⇒     If 2 Ω or greater, repair the open/high resistance in the circuit.
    ⇒     If less than 2 Ω, repair the open/high resistance in the ground connection.
    ⇓     If less than 10 Ω
  3. Vehicle in Service Mode.
  4. Verify that a test lamp illuminates between the ignition circuit terminal 5 and ground.
    5. ⇒If the test lamp does not illuminate
    4.1. Vehicle OFF, disconnect the harness connector at the K17 electronic brake control module.
    4.2. Test for infinite resistance between the ignition circuit and ground.
    ⇒     If less than infinite resistance, repair the short to ground on the circuit.
    ⇓     If infinite resistance
    4.3. Test for less than 2 Ω in the ignition circuit end to end.
    ⇒     If 2 Ω or greater, repair the open/high resistance in the circuit.
    ⇒     If less than 2 Ω, replace the K17 electronic brake control module.
    ⇓     If the test lamp illuminates
  5. Replace the B119 multi-axis acceleration sensor.
  6. Verify the DTC does not set while operating the vehicle under the Conditions for Running the DTC.
    7. ⇒If the DTC sets
        Replace the K17 electronic brake control module.
    ⇓   If the DTC does not set
  7. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

    •  Vehicle Yaw Sensor with Vehicle Lateral and Longitudinal Accelerometer Replacement
    • Control Module References for electronic brake control module replacement, programming and setup
   


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