Signal Missing - Intermittent Fault

Signal missing. Intermittent fault

Checking components and wiring
Check the connector for contact resistance, oxidation and loose connections.
Check the cable between engine control module (ECM) terminal #A7 (#A7) and engine cooling fan (FC) control module terminal #1B 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 and access the control module, see Connecting the breakout box, B5244T5, B5254T2 Connecting the Breakout Box
- For information about signals, see Signal specification Signal Description / Specification














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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