Signal Missing. Intermittent Fault

Signal missing. Intermittent fault

Checking the connectors and components




- Ignition off
- Check the connectors for the rear heated oxygen sensor (HO2S) and control module. Check for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring And Terminals. Intermittent Faults
- Check the signal cable between terminal #4 for the rear heated oxygen sensor (HO2S) and control module terminal #44. Check 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. EMS 2000 Connecting The Breakout Box. EMS 2000
- To replace the rear heated oxygen sensor (HO2S), see Replacing lambda sond rear Replacing Lambda Sond Rear.













Select Continue.

Continue - Resetting the adaptation

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Resetting the adaptation

Note! It is important that the fuel trim is reset after this diagnostic trouble code (DTC) is remedied. If this is not done there may be driveability problems, even though the fault is no longer present.




- Ignition on.




- Click on the VCT2000 symbol to reset the fuel trim

Select "Continue" when the fuel trim is reset.

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 the connectors and components

FAULT FOUND - DONE

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