GM Service Manual Online
For 1990-2009 cars only

Stop Lamps Inoperative Chevrolet

Step

Action

Yes

No

Schematic Reference: Exterior Lights Schematics

1

Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Lighting Systems

2

  1. Turn the ignition to the OFF position.
  2. Press and hold the brake pedal.

Do all of the stop lamps illuminate?

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

Go to Step 3

3

Are all the stop lamps inoperative?

Go to Step 4

Go to Step 6

4

  1. Disconnect the stop lamp/TCC switch .
  2. Probe the battery positive voltage circuit of the stop lamp/TCC switch connector with a test lamp that is connected to ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 8

5

Connect a fused jumper between the stop lamp supply voltage circuit and the battery positive voltage of the stop lamp/TCC switch connector. Refer to Circuit Testing in Wiring Systems.

Do the stop lamps illuminate?

Go to Step 10

Go to Step 11

6

  1. Disconnect the inoperative stop lamp.
  2. Probe the supply voltage circuit of the inoperative stoplamp with a test lamp that is connected to ground.
  3. Press and hold the brake pedal.

Does the test lamp illuminate?

Go to Step 7

Go to Step 12

7

Probe between the ground circuit and the supply voltage circuit of the inoperative stop lamp with a test lamp.

Does the test lamp illuminate?

Go to Step 9

Go to Step 13

8

Test for an open or high resistance in the battery positive voltage circuit of the stop lamp/TCC switch . Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 17

Go to Step 14

9

Inspect for poor connections at the harness connector of the inoperative stop lamp. 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 17

Go to Step 15

10

Inspect for poor connections at the harness connector of the stop lamp/TCC 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 17

Go to Step 16

11

Repair an open or high resistance in the stop lamp supply voltage circuit of the stop lamp/TCC switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 17

--

12

Repair an open or high resistance in the supply voltage circuit of the inoperative stop lamp. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 17

--

13

Repair an open or high resistance in the ground circuit of the inoperative stop lamp. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 17

--

14

Repair a short to ground in the battery positive voltage circuit of the stop lamp/TCC switch . Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 17

--

15

Replace the inoperative stop lamp. Refer to High Mount Stop Lamp Replacement or to Tail Lamp Bulb Replacement .

Did you complete the replacement?

Go to Step 17

--

16

Adjust/replace the stop lamp/TCC switch. Refer to Stop Lamp Switch Replacement and to Stop Lamp Switch Adjustment in Hydraulic Brakes.

Did you complete the replacement?

Go to Step 17

--

17

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2

Stop Lamps Inoperative Pontiac

Step

Action

Yes

No

Schematic Reference: Exterior Lights Schematics

1

Did you review the Exterior Lighting System Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Lighting Systems

2

  1. Turn the ignition to the OFF position.
  2. Press and hold the brake pedal.

Do all of the stop lamps illuminate?

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

Go to Step 3

3

Are all the stop lamps inoperative?

Go to Step 6

Go to Step 4

4

Is only one stop lamp inoperative or only the center high mounted stop lamp inoperative?

Go to Step 8

Go to Step 5

5

Are all the stop lamps inoperative except the high mounted stop lamp?

Go to Step 9

Go to Step 12

6

  1. Disconnect the stop lamp/TCC switch .
  2. Probe the battery positive voltage circuit of the stop lamp/TCC switch connector with a test lamp that is connected to ground.

Does the test lamp illuminate?

Go to Step 7

Go to Step 11

7

Connect a fused jumper between the stoplamp supply voltage circuit and the battery positive voltage of the stop lamp/TCC switch connector. Refer to Circuit Testing in Wiring Systems.

Do the stop lamps illuminate?

Go to Step 14

Go to Step 16

8

  1. Disconnect the inoperative stop lamp.
  2. Probe the supply voltage circuit of the inoperative stop lamp with a test lamp that is connected to ground.
  3. Press and hold the brake pedal.

Does the test lamp illuminate?

Go to Step 10

Go to Step 17

9

  1. Disconnect the connector C216.
  2. Probe the stop lamp supply voltage circuit of the female C216 connector with a test lamp that is connected to ground.
  3. Press and hold the brake pedal.

Does the test lamp illuminate?

Go to Step 15

Go to Step 20

10

Probe between the ground circuit and the supply voltage circuit of the inoperative stop lamp with a test lamp.

Does the test lamp illuminate?

Go to Step 13

Go to Step 18

11

Test for an open or high resistance in the battery positive voltage circuit of the stop lamp/TCC switch . Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 24

Go to Step 19

12

If the inboard and outboard stop lamp are inoperative on one side, test for an open or high resistance in the rear stop/turn lamp supply voltage circuit of the affected stop lamps. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 24

Go to Step 15

13

Inspect for poor connections at the harness connector of the inoperative stop lamp. 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 24

Go to Step 21

14

Inspect for poor connections at the harness connector of the stop lamp/TCC 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 24

Go to Step 22

15

Inspect for poor connections at the harness connector of the turn signal/multifunction 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 24

Go to Step 23

16

Repair an open or high resistance in the stop lamp supply voltage circuit of the stop lamp/TCC switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 24

--

17

Repair an open or high resistance in the supply voltage circuit of the inoperative stop lamp. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 24

--

18

Repair an open or high resistance in the ground circuit of the inoperative stop lamp. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 24

--

19

Repair a short to ground in the battery positive voltage circuit of the stop lamp/TCC switch . Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 24

--

20

Repair a open or high resistance in the stop lamp supply voltage circuit of the turn signal/multifunction switch. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 24

--

21

Replace the inoperative stop lamp. Refer to High Mount Stop Lamp Replacement or to Tail Lamp Bulb Replacement .

Did you complete the replacement?

Go to Step 24

--

22

Adjust/replace the stop lamp/TCC switch. Refer to Stop Lamp Switch Replacement and to Stop Lamp Switch Adjustment in Hydraulic Brakes.

Did you complete the replacement?

Go to Step 24

--

23

Replace the turn signal/multifunction switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column Tilt.

Did you complete the replacement?

Go to Step 24

--

24

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2