Signal Too High. Permanent Fault

Signal too high. Permanent fault

Checking component and wiring
Check outside temperature sensor resistance.
Check signal cable between control module #B29 (#B39) and outside temperature sensor #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 outside temperature sensor connector disconnected the voltage between #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 outside temperature sensor, see Replacing sensor Replacing Sensor.
- For resistance values, see Component specifications [1][2]Engine Control Module.
- 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 outside temperature.





Is the temperature within its permitted range?

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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