On-Vehicle Inspection
IDLE AIR CONTROL (IAC) VALVEON-VEHICLE INSPECTION
INSPECT IAC VALVE OPERATION
a. Initial conditions:
- Engine at normal operating temperature
- Idle speed set correctly
- Transmission in neutral position
b. Using SST, connect terminals TE1 and E1 of the DLC1.
SST 09843-18020
c. After the engine speed is kept at 900 - 1,300 rpm for 5 seconds, check that it returns to idle speed.
If the engine speed operation is not as specified, check the IAC valve, wiring and ECM.
d. Remove the SST from the DLC1.
SST 09843-18020