Operation CHARM: Car repair manuals for everyone.
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Faulty Signal. Intermittent Fault





Checking Cables And Terminals
- Check cables between ignition discharge module (IDM) 4/38 terminal 7 and engine control module (ECM) # B14, terminal 5 and engine control module # B10 for an intermittent short-circuit to supply voltage.
- Check cables between ignition discharge module 4/39 terminal 7 and engine control module # B35, terminal 2 and engine control module # B34 for an intermittent short-circuit to supply voltage.
- Check cable between air conditioning (A/C) relay terminal 4 and engine control module # B40 for an intermittent short-circuit to supply voltage and an intermittent short-circuit to ground.
- Proceed to: Fault-tracing Information section below.

Fault-tracing Information
For intermittent faults fault-tracing is not followed by a verification because the fault is not present at this moment.

- Do you want to repeat fault-tracing?

Yes:
^ Proceed to: Checking Cables And Terminals section above.

No:
^ Operation done.