Schematic Reference: Door Control Module Schematics

Connector End View Reference: Power Door Systems Connector End Views

Did you perform the Door Systems Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Door Systems

Verify that the power mirror select switch indicator malfunction fault is present.

Does the power mirror select switch indicator operate normally?

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

Go to Step 3

Is the power mirror select switch indicator always ON?

Go to Step 4

Go to Step 5

1. Turn OFF the ignition.
2. Disconnect the driver door module (DDM) C4 harness connector.
3. Install a scan tool.
4. Turn ON the ignition, with the engine OFF.
5. Observe the Drv Mirror Select Led and Psgr Mirror Select Led parameters in the Left Door Control Module Inputs data list.

Does the scan tool display Inactive for both parameters?

Go to Step 7

Go to Step 11

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Observe the Drv Mirror Select Led and Psgr Mirror Select Led parameters in the Left Door Control Module Inputs data list.

Does the scan tool display Inactive for both parameters?

Go to Step 11

Go to Step 6

Are both of the power mirror select switch indicators inoperative?

Go to Step 8

Go to Step 9

Test the appropriate mirror select indicator control circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 15

Go to Step 12

Test the battery positive voltage circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 15

Go to Step 12

Test the appropriate mirror select indicator control circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 15

Go to Step 10

Test the appropriate mirror select switch signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 15

Go to Step 12

Inspect for poor connections at the harness connector of the driver door module (DDM). 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 15

Go to Step 13

Inspect for poor connections at the harness connector of the driver door switch. 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 15

Go to Step 14

Replace the driver door module. Refer to Door Control Module Replacement .

Did you complete the replacement?

Go to Step 15

--

Replace the driver door switch. Refer to Front Door Switch Replacement .

Did you complete the replacement?

Go to Step 15

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3