Malibu L4-144 2.4L DOHC VIN T SFI (1998)
Powertrain Control Module: Service and Repair
Powertrain Control Module (PCM) Replacement
Precautions
Caution: In order to prevent internal damage to the PCM, the ignition must be OFF when disconnecting or reconnecting the PCM connector.
Note: Service of the PCM should normally consist of either replacement of the PCM or Electrically Erasable Programable Read Only Memory
(EEPROM) re-programming.
Note: If the diagnostic procedures call for the PCM to be replaced, the PCM should be checked first to see if it is the correct part. DTC P0601 indicates
the EEPROM programming has malfunctioned. When DTC P0601 is obtained, re-program the EEPROM.
Caution: The ignition should be OFF for at least 10 seconds before disconnecting power to the PCM so the Idle Air Control (IAC) valve has time to
move to the engine OFF position.
PCM Electrical Connectors
