939003632 - K012 DISPLAY DOES NOT SIGNAL ICE DANGER WITH LOW 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 diagnosisReplace 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 sensorOp. 5010D12
2. Wiring defective2.Renew the wiring
3CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present.End of diagnosis