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Home › Buick › 2021 › Enclave Preferred › Repair and Diagnosis › Transmission › Automatic Trans › Electronic Transmission Range Select System › Diagnostic Information and Procedures › DTC P16F4 › Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify DTC P16F4 is not set.
    • If DTC P16F4 is set 
    1. Perform the programming  procedure for the K38 Chassis Control Module.
    2. Verify the DTC does not set.
      • If the DTC is set, replace the K38 Chassis Control Module.
      • Go to next step: If the DTC does not set
    3. All OK
    • Go to next step: If DTC P16F4 is not set 
  3. All OK
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