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.

0	PRELIMINARY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	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 3	1.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
1	ACTIVE DIAGNOSIS CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check, using the Examiner in active diagnosis that the autotest function is correctly activated	Move on to Step 2	The function in question is not controlled by the active diagnosis	Replace the instrument panel    Op. 5560B10 CONTROL PANEL - R+R
2	ERRORS CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Using the Examiner in the "Driver''s Door Node" ambient, check that there is no air temperature sensor error.	Move on to Step 3	1.Outside air temperature sensor defective/stuck.	1.Replace the sensorOp. 5010D12
			2. Wiring defective	2.Renew the wiring
3	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present.	End of diagnosis