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Tahoe / Yukon Service Manual

DTC B1A05

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 Descriptor DTC B1A05 Image Processing Module – Signal Invalid Circuit/System Description The K160 Brake System Control Module monitors data from the K124 Image Processing Module. Conditions for Running the DTC Ignition On Conditions for Setting the DTC Ignition On Action Taken When the DTC Sets All features that operate with input from the K124 Image Processing Module are disabled. A service message may be displayed on the driver information center. Conditions for Clearing the DTC The frontview camera module is successfully aligned. Reference Information Schematic Reference Antilock Brake System Schematics Driver Assistance Systems Schematics Connector End View Reference Master Electrical Component List Description and Operation ABS Description and Operation Active Safety System 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

  1. Ignition ON.
  2. Verify there are no DTCs set, except for DTC B1A05. ⇒ If any other DTCs are set Refer to Diagnostic Trouble Code (DTC) List - Vehicle. ⇓ If no other DTCs are set
  3. Verify DTC B1A05 is not set ⇒ If DTC B1A05 is set Replace the K124 Image Processing Module. ⇓ If DTC B1A05 is not set
  4. All OK. Repair Instructions Perform the Diagnostic Repair Verification after completing the repair. Control Module References for control module replacement, programming, and setup.