Fault-Tracing

Fault tracing ECM-P018200

Checking the status




- Start the engine.
Check whether the fault is permanent or intermittent. Read off the fuel temperature sensor signal. Check that the value is within its permitted range.

Hint: The signal is measured in the delivery line of the injectors and the signal is therefore affected by the engine temperature.

The fault is permanent if the value is not within its permitted range. If the value is within its permitted range, the fault is intermittent and not presently active.





Continue - Checking components and wiring

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Checking components and wiring








- Ignition off
- Disconnect the engine control module (ECM).

Hint: The fuel temperature sensor is integrated in the fuel pressure sensor.

Check the signal cable. Check for a short-circuit to ground.
Take readings between control module terminal #A46 (#A46) and fuel pressure sensor terminal #2.
Remedy as necessary.

Other information
- Connecting the breakout box, B8444S Connecting the Breakout Box
- Checking wiring and terminals Checking Wiring and Terminals









Continue - Verification

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Verification




Verification

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








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on
Read off the fuel temperature sensor signal by clicking on the symbol for VCT2000.
Check that the signal is within its permitted range. The signal is measured in the injector delivery lines as the signal is affected by the engine temperature.





Is the signal within its permitted range?

Yes - Troubleshooting procedure complete

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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Attempt New Test - Checking components and wiring

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