Operation CHARM: Car repair manuals for everyone.

Transmission Controls With PCM

Info. Flag 57 is set when the PCM has detected its internal diagnostic or adaptive values changed abnormally; a non-PCM initiated change.

TEST DESCRIPTION

IMPORTANT: Record all failure flags and include with repair information.


^ Clear Codes using a Scan Tool. If flag 57 re-occurs and the only customer complaint is driveability, replace PCM.