Schematic Reference: Outside Rearview Mirror Schematics

Connector End View Reference: Master Electrical Component List in Wiring Systems

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

Verify that the Heated Mirrors Inoperative complaint is present.

Does the Heated Mirrors System operate as described in the Outside Mirror Description and Operation?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

1. Turn OFF the ignition.
2. Disconnect the door module harness connector C4 of the inoperative outside heated mirror.
3. Connect a test lamp between the mirror heating element low reference circuit and the mirror heating element supply voltage circuit at the door module pins.
4. Turn ON the ignition, with the engine OFF.

Does the test lamp illuminate?

Go to Step 9

Go to Step 4

With the test lamp still connected between the mirror heating element low reference circuit and the mirror heating element supply voltage circuit pins, command the mirror to heat by turning the rear defroster ON.

Does the test lamp illuminate?

Go to Step 5

Go to Step 9

1. Turn OFF the ignition.
2. Connect the door module harness connector C4 of the inoperative mirror.
3. Carefully remove the mirror face, glass, from the mirror that does not heat. Refer to Outside Rearview Mirror Glass Replacement .
4. Disconnect the mirror heating element circuit connectors from the mirror face.
5. Connect a test lamp between the mirror heating element circuit connectors.
6. Turn ON the ignition, with the engine OFF.

Does the test lamp illuminate?

Go to Step 7

Go to Step 6

With the test lamp still connected between the mirror heating element circuit connectors, command the mirror to heat by turning the rear defroster ON.

Does the test lamp illuminate?

Go to Step 8

Go to Step 7

Inspect for poor connections at the door module harness connector C4 of the inoperative outside heated mirror. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 12

Inspect for poor connections at the mirror heating element circuit connectors of the mirror face. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 10

Inspect for poor connections at the door module harness connector C4 of the inoperative outside heated mirror. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 11

Replace the inoperative outside rearview mirror face. Refer to Outside Rearview Mirror Glass Replacement .

Did you complete the replacement?

Go to Step 13

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Replace the door module of the inoperative mirror. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 13

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Replace the inoperative outside rearview mirror. Refer to Power Mirror Replacement .

Did you complete the replacement?

Go to Step 13

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Operate the system in order to verify the repair

Did you correct the condition?

System OK

Go to Step 2