• 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.

The yaw rate, lateral acceleration and longitudinal acceleration sensors are combined into one multi-axis acceleration sensor, internal to the inflatable restraint sensing and diagnostic module. 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 the multi-axis acceleration sensor input. The inflatable restraint sensing and diagnostic module uses the multi-axis acceleration sensor to determine if the vehicle is in a roll over or near collision incident.

Ignition ON.

The lateral acceleration signal is out of the specified range.

The lateral acceleration sensor is not calibrated.

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

• The electronic brake control module received an invalid lateral acceleration signal.
• An open/high resistance is detected on the multi-axis acceleration signal ground circuit.
• A short to ground or open/high resistance is detected on the multi-axis acceleration ignition circuit.

The yaw rate signal is out of the specified range.

• The yaw rate signal offset is out of the specified range.
• The yaw rate signal is not plausible with the lateral acceleration signal, the steering angle signal and the vehicle speed.

• A short to ground or open/high resistance is detected on the ignition circuit.
• The electronic brake control module received an invalid lateral acceleration signal.
• An open/high resistance is detected on the multi-axis acceleration signal ground circuit.

The longitudinal acceleration signal is out of the specified range.

The longitudinal acceleration sensor is not calibrated.

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

• The electronic brake control module received an invalid longitudinal acceleration signal.
• An open/high resistance is detected on the multi-axis acceleration signal ground circuit.
• A short to ground or open/high resistance is detected on the multi-axis acceleration signal.

• The Air Bag Indicator turns ON.
• The traction/stability control Off Indicator turns ON.
• The electronic brake control module disables the traction/stability for the duration of the ignition cycle.

• The traction/stability control Off indicator turns ON.
• The electronic brake control module disables the traction/stability for the duration of the ignition cycle.

• The DTC clears when the diagnostic runs and passes.
• The history DTC will clear after 40 consecutive fault-free ignition cycles have occurred.

Antilock Brake System Schematics

Master Electrical Component List

ABS Description and Operation

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

Control Module References for scan tool information

1. Verify DTC B101D is not set current or history in the K36 Inflatable Restraint Sensing and Diagnostic Module.
• If DTC B101D is set current or history in the K36 Inflatable Restraint and Sensing Diagnostic Module

  Replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

• If DTC B101D is not set current or history in the K36  Inflatable Restraint and Sensing Diagnostic Module
2. Verify DTC C0186, C0196, or C0287 is not set in the K36 Inflatable Restraint Sensing and Diagnostic Module.
• If any of the DTCs are set

  Perform the Vehicle Yaw Sensor Learn.

• If none of the DTCs are set
3. Verify DTC C0186, C0196, or C0287 is not set in the K17 Electronic Brake Control Module.
• If any of the DTCs are set
1. Replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
2. Verify the DTC does not set while operating the vehicle within the Conditions for Running the DTC.
• If the DTC sets, replace the K17 Electronic Brake Control Module.
• If the DTC does not set
3. All OK.
• If none of the DTCs are set
4. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for Electronic Brake Control Module or Inflatable Restraint Sensing and Diagnostic Module replacement, programming and setup