Ignition "ON".
Remove ICA Valve from Throttle body. Check for throttle bore, throttle plate and the ICA passages for chocking and for any foreign objects. Repair or clean as necessary.
Install the ICA valve.
Ignition "ON" & Engine "OFF".
Install scan tool and select "IDLE SPEED ACTUATOR" parameter on the "Actuation Test" mode.
Activates ICA valve by pressing "STAT" key.
Check the ICA valve for clicking sound and visually verifying valve closes and opens.
Repeat numerous times to ensure valve reliability.
Is ICA Valve OK?
YES
▶ Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
▶ Check ICA for contamination, deterioration, or damage. Substitute with a known-good ICA and check for proper operation. If the problem is corrected, replace ICA and then go to "Verification of Vehicle Repair" procedure.
