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Tahoe / Yukon Service Manual

DTC P0606 (K160 Brake System Control Module)

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 P0606 Control Module Processor Performance For symptom byte information, refer to Symptom Byte List. Circuit/System Description This diagnostic applies to internal microprocessor integrity conditions within the control module. This diagnostic also addresses if the control module is not programmed. The control module monitors its ability to read and write to the memory. It also monitors a timing function. No external circuits are involved. Conditions for Running the DTC The ignition is ON or the vehicle is in service mode. The system voltage is greater than 9.5 V. Conditions for Setting the DTC The control module detects an internal malfunction or incomplete programming. Action Taken When the DTC Sets DTC P0606 is type A DTC. Conditions for Clearing the DTC DTC P0606 is type A DTC. Diagnostic Aids If stored only as a history DTC and not retrieved as a current DTC, do not replace the control module. Reference Information Schematic Reference Data Communication Schematics Connector End View Reference Master Electrical Component List Description and Operation Data Link Communications Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs DTC Type Reference Powertrain Diagnostic Trouble Code (DTC) Type Definitions Scan Tool References Control Module References for scan tool information Circuit/System Verification

  1. Ignition ON/Vehicle in Service Mode.
  2. Verify that DTC C0555–C0558 are not also set. ⇒ If any of the DTCs are set Refer to: Diagnostic Trouble Code (DTC) List - Vehicle ⇓ If none of the DTCs are set
  3. Replace the K160 Brake System Control Module Repair Instructions Perform the Diagnostic Repair Verification after completing the repair. Control Module References for control module replacement, programming and setup