P0604

DTC P0604 - INTERNAL TRANSMISSION CONTROL MODULE (TCM) RANDOM ACCESS MEMORY (RAM) ERROR
Conditions for Setting the DTC
- The Transmission Control Module (TCM) cannot carry out the four RAM initialization routines within 20 milliseconds after ignition ON.

Action Taken When the DTC Sets
- The TCM illuminates the Malfunction Indicator Lamp (MIL) after two consecutive ignition cycles with a failure reported.

Conditions for Clearing the MIL/DTC
- The TCM turns off the MIL after three consecutive ignition cycles without a failure reported.
- The Scan-100 scan tool can clear the Diagnostic Trouble Code (DTC) from the TCM history.
- The TCM clears the DTC from the TCM history if it can carry out the four RAM initialization routines within 20 milliseconds after ignition ON.





DTC P0604 - Internal Transmission Control Module (TCM) Random Access Memory (RAM) Error