RAM 1500 Truck 2WD V6-3.9L VIN X (1999)
Heated Element: Testing and Inspection
Heated Mirror System
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO AIR BAGS AND SEAT BELTS/AIR BAGS BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE.
FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
The operation of the heated mirror system can be confirmed in one of the following manners:
1. Turn the ignition switch to the On position. While monitoring the instrument panel voltmeter, set the heated mirror switch in the On position.
When the heated mirror switch is turned On, a distinct voltmeter needle deflection should be noted.
2. Turn the ignition switch to the On position. Set the heated mirror switch in the On position. The heated mirror operation can be checked by feeling
the outside rear view mirror glass. A distinct difference in temperature between the unheated and heated mirror glass can be detected within three
to four minutes of operation.
The above checks will confirm system operation. Illumination of the heated mirror indicator lamp means that there is electrical current available at the
heated mirror relay, but does not confirm that the electrical current is reaching the outside mirror glass heating grids.
If the heated mirror system does not operate, the problem should be isolated in the following manner:
1. Confirm that the ignition switch is in the On position.
2. Check the fuses in the Power Distribution Center (PDC) and in the junction block. The fuses must be tight in their receptacles and all electrical
connections must be secure.
When the above steps have been completed and the outside rear view mirror heating grid is still inoperative, one or more of the following is faulty:
-
Heated mirror control
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Outside mirror heating grid
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Heated mirror wire harness circuits or connectors.
If setting the heated mirror switch to the On position produces a severe voltmeter deflection, check for a short circuit between the heated mirror control
output and the outside rear view mirror heating grids.
