Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Preliminary Inspection
The idle learn procedure must be done so the PCM can learn the engine idle characteristics. Do the idle learn procedure whenever you do any of these actions:
- Reset the PCM.
- Remove the battery or disconnect its terminals.
- Remove the PCM or disconnect its connectors.
- Remove the driver's or passenger's under-dash fuse/relay box.
- Remove the BATTERY (120 amp) fuse from the underhood fuse/relay box.
- Remove the BACK-UP, ACC (40 amp) fuse from the underhood fuse/relay box.
- Remove the No. 13 CLOCK, BACK-UP (15 amp) fuse from the passenger's under-dash fuse/relay box.
- Remove the PGM-FI main relay.
- Disconnect the starter cable terminal from the underhood fuse/relay box.
- Disconnect the connectors between the engine wire harness and the left engine compartment wire harness.
- Disconnect the connectors between dashboard wire harness "A" and dashboard wire harness "B".
- Disconnect the ground terminals, G1, G2, G101, and G102.
To complete the idle learn procedure, perform learn procedure. See LEARN PROCEDURE
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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