Signal Too Low
Signal too low
Status check
Check if the outside temperature gauge display is outside its permitted range.
Does the outside temperature gauge display a value outside its permitted range?
Yes - Checking components and wiring
No - Checking components and wiring
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Checking components and wiring
Hint: If the cable and the combined instrument panel are fault free the voltage between terminals 1 and 2 on the outside temperature sensor connector should be approximately 5 V.
Check the signal cable between the combined instrument panel #A19 (#A19) 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.
Remedy as necessary.
Other information:
- To connect the breakout box, see Pinout Values and Diagnostic Parameters.
- To access / replace the combined instrument panel, see Driver information module (DIM), installation/removal, component replacement Removal and Replacement.
- To access / replace the outside temperature sensor, see Removal and Replacement.
- For information about signals, see Signal specification Signal Specification.
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.
Check that the outside temperature sensor display is within its permitted range.
Does the outside temperature sensor display values within their permitted range?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFIED - FAULT FOUND
VERIFICATION FAILED - 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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Checking components and wiring
Hint: If the cable and the combined instrument panel are fault free the voltage between terminals 1 and 2 on the outside temperature sensor connector should be approximately 5 V.
Check the signal cable between the combined instrument panel #A19 (#A19) and outside temperature sensor #1 for an intermittent short-circuit to ground 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 Pinout Values and Diagnostic Parameters.
- To access / replace the combined instrument panel, see Driver information module (DIM), installation/removal, component replacement Removal and Replacement.
- To access / replace the outside temperature sensor, see Removal and Replacement.
- For information about signals, see Signal specification Signal Specification.
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 components and wiring
FAULT FOUND - DONE
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