Signal Missing. Intermittent Fault

Signal missing. Intermittent fault

Checking component and wiring
Check engine cooling fan (FC) relay connector for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults
Check power supply cable for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults , also check that the fuse has not blown.
Check cable between engine control module (ECM) #A6 and engine cooling fan (FC) relay #IN2 for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Remedy as necessary

Other information
- To connect the breakout box, see Connecting the breakout box, B5234T9, B5244T7 Connecting The Breakout Box.
- For information about signals, see Signal specification Signal Specifications.
- The engine cooling fan (FC) relay is supplied with power via fuse 11A/1














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 component and wiring

FAULT FOUND - DONE

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