323000786 - 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 encounteredOperation
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.2. The value is correct when the ignition is switched on again.1. Move on to Step 12. Move on to Step 3
1ACTIVE DIAGNOSIS CHECKAll OKProblems encounteredOperation
Check, using the Examiner in active diagnosis that the autotest function is correctly activated.Move on to Step 2The function in question is not controlled by the active diagnosis.Replace the instrument panel    Op. 5560B10 CONTROL PANEL - R+R
2ERROR CHECKAll OKProblems encounteredOperation
Keeping the Examiner connected, enter the "Driver''s Door Node" ambient and check that there is no error at the outside temperature sensor.Move on to Step 31. Outside temperature sensor defective/incorrectly adjusted.2. Wiring defective.1. Replace the sensor    Op. 7005R30 ELECTRICALLY CONTROLLED DOOR MIRROR (ONE) - R+R 2. Restore the correct wiring.
3CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Check that the fault is no longer present.End of diagnosis.The fault persists.Replace Body Computer    Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.