GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: The RH power mirror does not move up and down. The LH power mirror moves as commanded.

1

Was the Power Door System Diagnostic System Check performed?

--

Go to Step 2

Go to Diagnostic System Check - Power Door Systems

2

  1. Disconnect the RH front door module connector C4.
  2. Connect a fused jumper from battery positive voltage (B+) to the RH front door module harness connector C4 terminal 1.
  3. Connect a fused jumper from ground to the RH front door module harness connector C4 terminal 5.

Does the motor run?

--

Go to Step 3

Go to Step 4

3

Replace the RH front door module. Refer to Door Control Module Replacement .

Is the replacement complete?

--

Go to Diagnostic System Check - Power Door Systems

--

4

Reverse the connections at RH front door module harness connector C4 terminals 1 and 5.

Does the motor run?

--

Go to Step 3

Go to Step 5

5

Test CKT 1498 (YEL) for an open or a short to ground.

Is the circuit OK?

--

Go to Step 6

Go to Step 7

6

Test CKT 889 (LT GRN) for an open or a short to ground.

Is the circuit OK?

--

Go to Step 8

Go to Step 9

7

Test CKT 1598 (YEL) for an open or a short to ground. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Diagnostic System Check - Power Door Systems

--

8

Replace the RH Power Mirror Vertical motor. Refer to Power Mirror Replacement .

Is the replacement complete?

--

Go to Diagnostic System Check - Power Door Systems

--

9

Test CKT 889 (LT GRN) for an open or a short to ground. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Diagnostic System Check - Power Door Systems

--