Signal Too Low. Permanent Fault

Signal too low. Permanent fault

Checking component and wiring
Check signal cable between control module #A23 (#A23) and boost pressure sensor terminal 1 for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault

Hint: With the ignition on and boost pressure sensor connector disconnected the voltage between terminal 1 and ground terminal should be approximately 5V.

Remedy as necessary.

Other information
- Connecting the breakout box/accessing the control module, see Connecting the breakout box, B5234T9, B5244T7 Connecting The Breakout Box.
- To access/replace the boost pressure sensor, see Manifold absolute pressure (MAP) sensor, replacing, B5234T9, B5244T7 Removal and Replacement.
- For information about signals, see Signal specification Signal Specifications.














Continue - Verification

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Verification




Verification

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








- Ignition off.
- Reconnect connectors, reinstall components
- Ignition on.
- Read off boost pressure sensor signal.
With the ignition on voltage should be approximately 1.9 V.









Is the signal OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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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 component and wiring

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