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For 1990-2009 cars only

Symptoms - Automatic Transmission Shift Lock Control LHD 4L60

Important: Review the system operation in order to familiarize yourself with the system functions. Refer to Automatic Transmission Shift Lock Control Description and Operation.

Visual/Physical Inspection

    • Inspect for aftermarket devices which may effect the operation of the automatic transmission shift lock control system, Refer to Checking Aftermarket Accessories.
    • Inspect the easily accessible to visible system components for obvious damage or conditions which may cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections.

Symptom List

Refer to a diagnostic procedure from the following list in order to diagnose the symptom:

    •  Shift Lever Does Not Move with Brake Pedal Depressed.
    •  Shift Lever Can Be Moved without Brake Pedal Depressed.

Symptoms - Automatic Transmission Shift Lock Control LHD 5L40

Important: Review the system operation in order to familiarize yourself with the system functions. Refer to Automatic Transmission Shift Lock Control Description and Operation.

Visual/Physical Inspection

    • Inspect for aftermarket devices which could effect the operation of the automatic transmission shift lock control system, Refer to Checking Aftermarket Accessories.
    • Inspect the easily accessible to visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections.

Symptom List

Refer to a diagnostic procedure from the following list in order to diagnose the symptom:

    •  Shift Lever Does Not Move with Brake Pedal Depressed.
    •  Shift Lever Can Be Moved without Brake Pedal Depressed.

Symptoms - Automatic Transmission Shift Lock Control LHD 6L80

Important: Review the system operation in order to familiarize yourself with the system functions. Refer to Automatic Transmission Shift Lock Control Description and Operation in Automatic Transmission - 6L80.

Visual/Physical Inspection

    • Inspect for aftermarket devices which could effect the operation of the automatic transmission shift lock control system, Refer to Checking Aftermarket Accessories in Wiring Systems.
    • Inspect the easily accessible to visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Symptom List

Refer to a diagnostic procedure from the following list in order to diagnose the symptom:

    •  Shift Lever Does Not Move with Brake Pedal Depressed in Automatic Transmission - 6L80
    •  Shift Lever Can Be Moved without Brake Pedal Depressed in Automatic Transmission - 6L80