GM Service Manual Online
For 1990-2009 cars only

Rearview Mirror Lamps Inoperative - Outside Both Mirrors

Step

Action

Value(s)

Yes

No

1

  1. Set the headlamp switch to the PARK position.
  2. Connect a test light between terminal A in the interior body builder connector and ground.

Does the test lamp light?

Go to Step 2

Go to Step 3

2

  1. Disconnect the harness connector C212.
  2. Connect a J 39200 between terminals E1 and E2 in the upper IP harness connector C212.

Does the DMM indicate continuity?

Go to Step 4

Go to Step 5

3

Repair the open in CKT 95 (BRN) between S319 and S320.

Is the repair complete?

System OK

--

4

Repair the open in CKT 342 (ORN) between S342 and terminal E2 in the upper IP harness connector C212.

Is the repair complete?

System OK

--

5

  1. Disconnect the lighted mirror jumper C216.
  2. Connect a J 39200 between terminals 2 and 5 in the lighted mirror jumper C216.

Does the DMM indicate continuity?

Go to Step 6

Go to Step 7

6

Connect a J 39200 between terminal 2 in the upper IP lighted mirror jumper socket C216 and terminal E2 in the upper IP harness connector C212.

Does the DMM indicate continuity?

Go to Step 8

Go to Step 9

7

Repair the open in CKT 147 (BRN) in the lighted mirror jumper C216.

Is the repair complete?

System OK

--

8

Repair the open in CKT 145 (BRN) between terminal 5 in the lighted mirror jumper socket C216 and terminal E1 in the upper IP harness connector C212.

Is the repair complete?

System OK

--

9

Repair the open in CKT 142 (ORN) between terminal 2 in the lighted mirror jumper socket C216 and terminal E2 in the upper IP harness connector C212.

Is the repair complete?

System OK

--

Rearview Mirror Lamps Inoperative - Outside Right Mirror

Step

Action

Value(s)

Yes

No

1

  1. Set the headlamp switch to the PARK position.
  2. Connect a test light between terminal A in the lighted mirror right door connector and ground.

Does the test lamp light?

Go to Step 2

Go to Step 3

2

Connect a test light between terminals A and B in the lighted mirror right door connector.

Does the test lamp light?

Go to Step 4

Go to Step 5

3

Repair the open in CKT 1, CKT 32 or CKT 343 (ORN) between S342 and terminal A in the lighted mirror right door harness connector.

Is the repair complete?

System OK

--

4

Repair the open in right lighted mirror assembly.

Is the repair complete?

System OK

--

5

Repair the open in CKT 2, CKT 4, CKT 33, CKT 69 or CKT 650 (BLK) between G105 and terminal B in the lighted mirror right door harness connector.

Is the repair complete?

System OK

--

Rearview Mirror Lamps Inoperative - Outside Left Mirror

Step

Action

Value(s)

Yes

No

1

  1. Set the headlamp switch to the PARK position.
  2. Connect a test light between terminal A in the lighted mirror left door connector and ground.

Does the test lamp light?

Go to Step 2

Go to Step 3

2

Connect a test light between terminals A and B in the lighted mirror left door connector.

Does the test lamp light?

Go to Step 4

Go to Step 5

3

Repair the open in CKT 1, CKT 32 or CKT 342 (ORN) between S342 and terminal A in the lighted mirror left door harness connector.

Is the repair complete?

System OK

--

4

Repair the open in left lighted mirror assembly.

Is the repair complete?

System OK

--

5

Repair the open in CKT 2, CKT 4, CKT 33, CKT 68 or CKT 550 (BLK) between G105 and terminal B in the lighted mirror left door harness connector.

Is the repair complete?

System OK

--