Operation CHARM: Car repair manuals for everyone.

Faulty Signal.






Faulty signal.

Status check

Note! If diagnostic trouble code (DTC) CI-132 is stored start fault-tracing according to this diagnostic trouble code (DTC) because it will probably solve the fault.




- Start engine.
- Go into scrolling values.
Read off engine speed (RPM).





Is the engine speed (RPM) within its permitted range?

Yes - Faulty signal. Intermittent fault

No - Checking cables and terminals

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Fault-tracing information
Continued fault-tracing depends on the car ignition/engine control module (ECM).

Continue - Verification

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Checking cables and terminals
Check combined instrument panel connector A, connector 24/13C and engine control module (ECM) connector for loose connections according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check cable between combined instrument panel #A11 and engine control module (ECM) #B21 for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults , an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.









Was a fault detected in cables and terminals?

Yes - Verification

No - Checking for interference

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Checking for interference
Check that the signal cable is not too close to sources of interference such as electric motors, ignition cables and car-phone cables.

Continue - Verification

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Verification

Hint: After carrying out the repair check that the fault has been remedied.












- Ignition off.
- Reinstall connectors, components etc.
- Start engine.
- Go into scrolling values.
Read off engine speed (RPM).





Is the engine speed (RPM) within its permitted range?

Yes - FAULT FOUND

No - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test


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Faulty signal. Intermittent fault





Faulty signal. Intermittent fault

Checking cables and terminals
Check combined instrument panel connector A, connector 24/13C and engine control module (ECM) connector for loose connections according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Check cable between combined instrument panel #A11 and engine control module (ECM) #B21 for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults , intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults and an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.










Continue - Fault-tracing information
DONE

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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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