RAV4 4-Door 4WD L4-2.0L (3S-FE) (1997)
Idle Speed/Throttle Actuator - Electronic: Component Tests and General Diagnostics
Component Inspection
IAC VALVE INSPECTION
INSPECT IAC VALVE OPERATION
(a) Connect the positive (+) lead from the battery to terminal +B and negative (-) lead to terminal RSC. and check that the valve is closed.
(b) Connect the positive (+) lead from the battery to terminal +B and negative (-) lead to terminal RSO, and check that the valve is open.
On-Vehicle Inspection
ON-VEHICLE INSPECTION
1. INSPECT IAC VALVE OPERATION
(a) Initial conditions:
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Engine at normal operating temperature
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Idle speed check correctly
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Transmission in neutral position
(b) Using SST. connect terminals TE1 and E1 of the DLC1. SST 09843-18020
(c) Maintain engine speed in the range between 900-1300 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. SST 09843-18020
2. INSPECT IAC VALVE RESISTANCE
NOTICE: "Cold" and "Hot" in these sentences express the temperature of the coils themselves. "Cold" is from -10°C (14°F) to 50°C (122°F) and
"Hot" is from 50°C (122°F)to 100°C (212°F).