Transfer Case Shift Control Switch Malfunction (1)

Transfer Case Shift Control Switch Malfunction 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 Reference Information Schematic Reference Transfer Case Control 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 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 there are no DTCs set related to the following component/system: S126 Ride Control Switch& K69 Transfer Case Control Module ⇒ If any DTC is set Refer to: Diagnostic Trouble Code (DTC) List - Vehicle ⇓ If no DTC is set
3. Perform the scan tool control function: Transfer Case Range » 2WD /4WD/AWD Automatic /4WD High/Locked Verify operating the controls yields the expected results. ⇒ If the function is NOT executed as expected Refer to: Symptoms - Transfer Case ⇓ If the function is executed as expected
4. Operate the component: S126 Ride Control Switch» 2WD /4WD/AWD Automatic /4WD High/Locked Verify operating the controls yields the expected results. ⇒ If the function is NOT executed as expected Refer to: Drive Mode Switch Malfunction ⇓ If the function is executed as expected
5. All OK. Repair Instructions Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification