TCM Reset procedure

Some PGM-Fi problems will also make the S indicator light come on. After the PGM-Fi system has been tested, disconnect the the BACK UP (RADIO) fuse (7.5A) in the engine compartment fuse/relay box for more than 10 seconds to reset the TCM memory.

Note:

• PGM-Fi system
  The PGM-Fi system on this model is a sequential multiport fuel injection system.
• The S warning light may come on, indicating a system problem, when infact there is a poor or intermittent electrical connection. First, check the electrical connections, clean or repair if necessary.
• Disconnecting the BACK UP (RADIO) fuse (7.5A) also cancels the radio preset stations and the clock setting. Make note of the radio presets before removing the fuse so that you can reset them.

TCM Reset procedure

1. Turn the ignition switch off.

A    Engine compartment fuse/relay box
B    BACK UP (RADIO) fuse (7.5A)

2. Remove the BACK UP (RADIO) fuse (7.5A) from the engine compartment fuse/relay box for 10 seconds to reset the TCM.

Note: Disconnecting the BACK UP (RADIO) fuse (7.5A) also cancels the radio preset stations and the clock setting. Make note of the radio presets before removing the fuse so that you can reset them.

Final procedure

Note: This procedure must be done after any fault finding.

1. Remove the jumper wire from the service check connector.
2. Reset the TCM.
3. Set the radio preset stations and clock settings.