Signal Missing. Intermittent Fault

Signal missing. Intermittent fault

Checking components and wiring








- Ignition off
- Disconnect idle air control (IAC) valve.
Check that the resistance in the idle air control (IAC) valve between terminals 1 and 2 is approximately 10 ohms at +20°C.
Check the signal cable between engine control module (ECM) terminal 64 and idle air control (IAC) valve terminal 2 for an intermittent open-circuit. Remedy according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.
Check the power supply cable between idle air control (IAC) valve terminal 1 and system relay (2/14) terminal 3 for an intermittent open-circuit and remedy according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults.

Other information
- To connect the breakout box, see Connecting the breakout box. EMS 2000 Connecting The Breakout Box. EMS 2000.













Select Continue.

Continue - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Checking components and wiring

FAULT FOUND - DONE

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