Celica ST Liftback L4-2164cc 2.2L DOHC (5S-FE) MFI (1998)
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(a) Disconnect the IAC valve connector.
(b) Using an ohmmeter, measure the resistance between terminal +B and other terminals (ISCC, ISCO).
Resistance:
If resistance is not as specified, replace the IAC valve.
(c) Reconnect the IAC valve connector.
