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Tahoe / Yukon Service Manual

DTC P06AF

Automatic Transmission - 10L80 MHS MQC | Diagnostic Information and Procedures | Document ID: 5224439 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 P06AF Torque Management System Performance - Forced Engine Shutdown Circuit/System Description For an overview of the component/system, refer to: Electronic Component Description Conditions for Running the DTC Battery Voltage = Greater than 9 V Ignition and Start Signal = 9 to 32 V Ignition and Start Switch Signal = On Conditions for Setting the DTC Invalid Data Received From Engine Control Module Actions Taken When the DTC Sets DTCs listed in the DTC Descriptor category = Type A DTC Conditions for Clearing the DTC DTCs listed in the DTC Descriptor category = Type A DTC Reference Information Connector End View Reference Master Electrical Component List 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 Reference Control Module References Circuit/System Verification

  1. Ignition » On / Vehicle » In Service Mode
  2. Verify DTC P06AF is not set. ⇒ If the DTC is set Replace the component: K20 Engine Control Module ⇓ If the DTC is not set
  3. 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