GM Service Manual Online
For 1990-2009 cars only

Tail Lamps Inoperative - Right Rear Domestic

Step

Action

Value(s)

Yes

No

DEFINITION: One or both of the right taillamps is inoperative, but there is no problem with the left taillamp, the rear turn signals, or the front park lamps.

1

Review the park lamp operation and perform the necessary inspections.

Did you complete the system review and inspection?

--

Go to Step 2

Go to Symptoms

2

Turn on the park lamps.

Do the taillamps operate normally?

--

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

Go to Step 3

3

  1. Remove the inoperative bulb(s).
  2. Visually and physically inspect the bulb(s).
  3. Replace any defective bulbl(s).

Did you replace any defective bulb(s)?

--

Go to Step 7

Go to Step 4

4

  1. Remove the inoperative bulb(s).
  2. Turn on the park lamps.
  3. Measure the voltage of the power feed CKT 909 (BRN) at cavity B of the taillamp socket.

Did the measurement equal battery voltage?

B+

Go to Step 6

Go to Step 5

5

Repair the open CKT 909 (BRN) between the right taillamp and splice S402.

Did you complete the repair?

--

Go to Step 7

--

6

Repair the open CKT 250 (BLK).

Did you complete the repair?

--

Go to Step 7

--

7

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 4

Tail Lamps Inoperative - Right Rear Export

Step

Action

Value(s)

Yes

No

DEFINITION: One or both of the right taillamps is inoperative, but there is no problem with the left taillamp, the rear turn signals, or the front park lamps.

1

Review the park lamp operation and perform the necessary inspections.

Did you complete the system review and inspection?

--

Go to Step 2

Go to Symptoms

2

Turn on the park lamps.

Do the taillamps operate normally?

--

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

Go to Step 3

3

  1. Remove the inoperative bulb(s).
  2. Visually and physically inspect the bulb(s).
  3. Replace any defective bulbl(s).

Did you replace any defective bulb(s)?

--

Go to Step 7

Go to Step 4

4

  1. Remove the inoperative bulb(s).
  2. Turn on the park lamps.
  3. Measure the voltage of the power feed CKT 909 (BRN) at cavity B of the taillamp socket.

Did the measurement equal battery voltage?

--

Go to Step 6

Go to Step 5

5

Repair the open CKT 909 (BRN) between the right taillamp and splice S324.

Did you complete the repair?

--

Go to Step 7

--

6

Repair the open CKT 250 (BLK).

Did you complete the repair?

--

Go to Step 7

--

7

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 4