Transmission Controls With PCM

NON-VOLATILE RANDOM ACCESS MEMORY (RAM) FAILURE

INFORMATION FLAG PARAMETERS
Information flag 57 is set when the PCM has detected its internal diagnostic or adaptive values changed abnormally; a non-PCM initiated change.
- Information flag 57 may set when battery is disconnected.

TEST DESCRIPTION

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

- Information flag 57 may set when battery is disconnected.
- Clear all diagnostic trouble codes/information flags, test drive the vehicle and if information flag 57 resets, replace the PCM.