Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo 159 Factory Service Manual (2005-2011)23 · Fault diagnosis
23 · Diagnostics

Display signals ice danger with high outside temperature

Make
Alfa Romeo
Model
159 Factory Service Manual
Year
2005–2011
Section
Instrument panel › Display signals ice danger with high outside temperature
Fault diagnosisDisplay signals ice danger with high outside temperature

DISPLAY SIGNALS ICE DANGER WITH HIGH OUTSIDE TEMPERATURE

The "Instrument Panel Node" receives information on the outside temperature from the "Driver''s Door Node" which in turn receives the figure from the sensor on the moving part of the driver''s rear view mirror.

0PRELIMINARY CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check that the temperature value shown on the instrument panel display is plausible.

Also check that when the NQS is switched off and switched back on again the temperature value is plausible.

Move on to Step 31.Irregular value not plausible.1.Move on to step 1
2.The value is correct when the ignition is switched on again.2.Move on to step 3
1ACTIVE DIAGNOSIS CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check, using the Examiner in active diagnosis that the autotest function is correctly activatedMove on to Step 2The function in question is not controlled by the active diagnosis

Replace the instrument panel

Op. 5560B10 CONTROL PANEL - R+R

2ERRORS CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Using the Examiner in the "Driver''s Door Node" ambient, check that there is no air temperature sensor error.Move on to Step 31.Outside air temperature sensor defective/stuck.

1.Replace the sensor

Op. 5010D12

2. Wiring defective2.Renew the wiring
3CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present.End of diagnosis

Parts & tools for this job For 2005 Alfa Romeo 159

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