Idle Control System: Other Honda Pilot I

PCM Idle Learn Procedure

For the PCM to learn the engine idle characteristics, this procedure must be done.

Do the idle learn procedure whenever you do any of these actions

1. Disconnect the battery.
2. Replace or clean the throttle body.
3. Replace the idle air control (IAC) valve.
4. Replace the PCM.
5. Reset the PCM. NOTE: Clearing DTCs with the HDS does not require you to do the idle learn procedure.
6. Remove the No. 13 CLOCK BACK UP (7.5A) fuse from the passenger's under-dash fuse/relay box.
7. Remove the BATTERY (120A) fuse from the underhood fuse/relay box.
8. Remove the BACK UP, ACC (40A) fuse from the under-hood fuse/relay box.
9. Remove any of the wires from the under-hood fuse/relay box.
10. Remove any of the wires from the driver's/passenger's under-dash fuse/relay box.
11. Disconnect any of the connectors from the under-hood fuse/relay box.
12. Disconnect any of the connectors from the driver's/passenger's under-dash fuse/relay box.
13. Disconnect the connector between the engine wire harness and left engine compartment wire harness.
14. Disconnect the G2 terminal from the transmission housing.
15. Disconnect the G1 terminal from the body.
16. Disconnect the G101 terminal from the water passage.
17. Disconnect the G102 terminal from the intake manifold.

Procedure

To complete the idle learn procedure, do this

1. Make sure all electrical items (A/C, audio, rear window defogger, lights, etc.) are off.
2. Start the engine, and hold it at 3,000 RPM with no load (in Park or neutral) until the radiator fan comes on, or until the engine coolant temperature reaches 194°F (90°C).
3. Let the engine idle for a minimum of 5 minutes with no load.

Note. If the radiator fan cycles during this time, do not include its running time in the 5 minutes.