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P1800

Manufacturer-specific fault code

This code has different meanings depending on the manufacturer. Select your vehicle make below to view specific diagnosis and solutions:

Code breakdown

P — System

Powertrain (engine, transmission, fuel & emissions)

1 — Type

Manufacturer-specific

8 — Subsystem

Transmission

Manufacturer-specific meanings

Buick Cadillac Chevrolet GM GMC Oldsmobile Saturn
TCM Power Control Relay Circuit Open

Related codes

Owner experiences (0)