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January 5th 2026

P1638 / JAGUAR

Can Link ECM/INSTM Circuit / Network Malfunction

Notes:

January 5th 2026

P1638 / GENERIC

Can Link ECM/INSTM Circuit / Network Malfunction

Notes:

January 5th 2026

P1638 / CHEVROLET

Generator F-Terminal Circuit

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January 5th 2026

P1638 / CADILLAC

Generator F-Terminal Circuit

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January 5th 2026

P1638 / BUICK

Generator F-Terminal Circuit

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January 5th 2026

P1638 / BMW

Throttle Valve Position Control; Throttle Stuck Temporarily

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January 5th 2026

P1638 / AUDI

Data Bus Powertrain missing message from clutch control

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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.