RAM 2500 Truck 2WD L6-5.9L DSL Turbo VIN 6 (1998)
Heated Element: Testing and Inspection
Heated Mirror Control
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.
1. Check the fuse in the junction block. If OK, go to Step 2. If not OK, repair the shorted circuit or component as required and replace the faulty fuse.
2. Turn the ignition switch to the On position. Check for battery voltage at the fuse in the junction block. If OK, go to Step 3. If not OK, repair the
open circuit to the ignition switch as required.
3. Disconnect and isolate the battery negative cable. Remove the heater and air conditioner control from the instrument panel. Refer to Heating and
Air Conditioning/Control Assembly/Heater-A/C Control Replacement for the procedures. Unplug the 3-way heated mirror switch wire harness
connector from the control. Check for continuity between the ground circuit cavity of the heated mirror switch wire harness connector and a good
ground. There should be continuity. If OK, go to Step 4. If not OK, repair the open circuit to ground as required.
4. Connect the battery negative cable. Turn the ignition switch to the On position. Check for battery voltage at the fused ignition switch output (run)
circuit cavity of the heated mirror switch wire harness connector. If OK, go to Step 5. If not OK, repair the open circuit to the fuse in the junction
block as required.
5. Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable. Reconnect the 3-way heated mirror switch wire
harness connector to the heater and air conditioner control. Connect the battery negative cable. Turn the ignition switch to the On position.
Depress and release the heated mirror switch. The amber heated mirror indicator lamp next to the switch button should light. If OK, go to Step 6.
If not OK, replace the faulty heater and air conditioner control assembly.
6. Back probe the heated mirror switch output circuit cavity of the heated mirror switch wire harness connector and check for battery voltage. If OK,
see Outside Mirror Heating Grid in the Diagnosis and Testing. If not OK, replace the faulty heater and air conditioner control assembly.
