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January 5th 2026

P1800 / JAGUAR

Transmission Clutch Interlock Safety Switch Circuit Failure

Notes:

January 5th 2026

P1800 / GENERIC

Transmission Clutch Interlock Safety Switch Circuit Failure

Notes:

January 5th 2026

P1800 / CADILLAC

TCM Power Control Relay Circuit Open

Notes:

January 5th 2026

P1800 / BUICK

TCM Power Control Relay Circuit Open

Notes:

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NOTE: Results from this database are the beginning of the diagnostic process, further investigation should be performed to confirm results before you begin repairs.