Celica GT Convertible L4-2164cc 2.2L DOHC MFI (1997)
(a) Disconnect the IAC valve connector.
(b) Using an ohmmeter, measure the resistance between terminal +B and other terminals (ISCC, ISCO).
Resistance:
Cold 17.0 - 24.5 Ohms
Hot 21.5 - 28.5 Ohms
If resistance is not as specified, replace the IAC valve.
(c) Reconnect the IAC valve connector.
