Fault-Tracing

Fault tracing ECM-P010800

Checking the status




- Ignition on
Check whether the fault is permanent or intermittent. Read off the pressure sensor signal for intake pressure and the atmospheric pressure sensor signal. Check that the values are approximately the same.

Hint: The atmospheric pressure sensor signal is used as a reference value for the pressure sensor signal for intake pressure.

The fault is permanent if the values do not correspond. If the values do not correspond, it indicates that 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).
Check the signal cable with regard to short circuit to supply voltage. Check the signal cable with regard to open circuit.
Take readings between control module terminal #A69 (#B09) and pressure sensor terminal #1.
Remedy as necessary.

Other information
- Connecting the breakout box, B8444S Connecting the Breakout Box
- Signal specification, engine control module (ECM), B8444S Signal Specification
- Manifold absolute pressure (MAP) sensor, replacing, B8444S Service and Repair
- 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 pressure sensor signal for intake pressure and the atmospheric pressure sensor signal by clicking on the VCT2000 symbol.
Check that the values correspond. The atmospheric pressure sensor signal is used as a reference value in this check.





Is the value 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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