Skip to content
Tahoe / Yukon Service Manual

DTC C0061-C0063 or C0551

Diagnostic Instructions Perform the Diagnostic System Check prior to using this diagnostic procedure: Diagnostic System Check - Vehicle Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis An overview of each diagnostic category can be found here: Diagnostic Procedure Instructions DTC Descriptor DTC C0061 Lateral Acceleration Sensor Circuit DTC C0063 Yaw Rate Circuit DTC C0551 Longitudinal Acceleration Sensor Circuit Symptom Byte Information: Symptom Byte List Circuit/System Description For an overview of the component/system, refer to: ABS Description and Operation

Component Description
B119 Multi-axis Acceleration Sensor The yaw rate, lateral and longitudinal acceleration sensors are internal to the inflatable restraint sensing and diagnostic module.
K160 Brake System Control Module When ABS, traction control or stability control operation is required, the electronic brake control module activates the pump motor.

Conditions for Running the DTC Ignition/Vehicle = ON Conditions for Setting the DTC C0061 1A Lateral Acceleration Signal = Out Of Range C0061 5A Lateral Acceleration Signal = Not Plausible C0061 0F Lateral Acceleration Signal = Signal Erratic C0061 19 Lateral Acceleration Signal = High Signal Amplitude C0063 1A Yaw Rate Circuit = Out Of Range C0063 5A Yaw Rate Circuit = Not Plausible C0063 0F Yaw Rate Circuit = Signal Erratic C0063 19 Yaw Rate Circuit = High Signal Amplitude C0551 1A Longitudinal Acceleration Sensor Circuit = Out Of Range C0551 5A Longitudinal Acceleration Sensor Circuit = Not Plausible C0551 0F Longitudinal Acceleration Sensor Circuit = Signal Erratic C0551 19 Longitudinal Acceleration Sensor Circuit = High Signal Amplitude Actions Taken When the DTC Sets C0061 or C0063 Traction/Stability Control Indicator = ON A message and/or warning indicator may be displayed to the driver. C0551 Traction/Stability Control Indicator = ON Hill Descent Control = ON Park Brake Indicator = ON A message and/or warning indicator may be displayed to the driver. Brake Assist = Limited Conditions for Clearing the DTC The conditions for setting the DTC no longer exist. A history DTC will clear after 40 consecutive malfunction-free ignition cycles. Reference Information Schematic Reference Antilock Brake System Schematics Connector End View Reference Master Electrical Component List Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References Circuit/System Verification

  1. Verify DTC C0061, C0063, C0551 is not set. @ K36 Inflatable Restraint Sensing and Diagnostic Module ⇒ If set as a current DTC @ K36 Inflatable Restraint Sensing and Diagnostic Module Perform the following learn procedure: Vehicle Dynamic Sensor Offset Calibration ⇓ If set as a history DTC @ K36 Inflatable Restraint Sensing and Diagnostic Module
  2. Verify DTC C0061, C0063, C0551 is not set. @ K160 Brake System Control Module ⇒ If set as a current DTC @ K160 Brake System Control Module Replace the component: K36 Restraints Control Module ⇓ If the DTC is set as history @ K160 Brake System Control Module
  3. Clear DTCs Under normal operating conditions: Verify the DTC does not set. ⇒ If the DTC sets » Replace the component: that set the DTC ⇓ If the DTC is not set
  4. All OK. Repair Instructions Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification For control module replacement, programming, and setup refer to: Control Module References