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Toyota Corolla Repair Manual: Idle air control System/ Circuit

Toyota Corolla Repair Manual / Diagnostics / Sfi system / Idle air control System/ Circuit

Dtc p0505 idle air control system

Dtc p0511 idle air control circuit

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is usefu ...

Circuit description
The rotary solenoid type idle air control (iac) valve is located under the throttle body and intake air bypassing the throttle valve flows into the iac valve through the passage. In this way ...

Other materials:

Inspection procedure
1 Inspect stop lamp switch assy 2 Check harness and connector(stop lamp switch assy ecm)   Install the stop lamp switch assy.  disconnect the ecm connector.  measure the voltage according to the value(s) in the table below when the brake pedal is depressed and releas ...

Terminals of ecu
1. Inspect integration relay Disconnect the connector and check the continuity of each terminal of the disconnected connector. Standard : If the result is not as specified, the vehicles side may malfunction. Reconnect the connector and check each terminal. Standard: If th ...

Purpose of the readiness tests
The onboard diagnostic (obd ii) system is designed to monitor the performance of emissionrelated components and report any detected abnormalities in the form of diagnostic trouble codes (dtcs). Since the various components need to be monitored during different driving conditions, t ...

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