For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Inspect the STOP LAMP fuse. Is the fuse open? | -- | Go to Step 2 | Go to Step 3
2 | Repair a short to ground in one of the following circuits:

• | CKT 140

• | CKT 17

Is the repair complete?

--

Go to Exterior Lights System Check

--

3 | Use a test lamp in order to backprobe the stop lamp switch harness connector C1 between terminal A and ground. Did the test lamp light? | -- | Go to Step 4 | Go to Step 7
4 |

1. Use a test lamp in order to backprobe the stop lamp switch harness connector C1 terminal B and ground.
2. Depress and hold the brake pedal while observing the test lamp.

Did the test lamp light?

--

Go to Step 5

Go to Step 6

5 |

1. Use a test lamp in order to backprobe between connector C203 terminal A8 and ground.
2. Depress and hold the brake pedal while observing the test lamp.

Does the test lamp light?

--

Go to Step 9

Go to Step 8

6 | Adjust or replace the stop lamp switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Is the repair complete? | -- | Go to Exterior Lights System Check | --
7 | Repair the following conditions in CKT 140:

• | A faulty connection

• | An open circuit

Is the repair complete?

--

Go to Exterior Lights System Check

--

8 | Repair the following conditions in CKT 17 between the stop lamp switch harness connector C1 terminal B and C203 terminal A8:

• | A faulty connection

• | An open circuit

Is the repair complete?

--

Go to Exterior Lights System Check

--

9 | Repair the following conditions in CKT 17 between C203 terminal A8 and S415:

• | A faulty connection

• | An open circuit

Is the repair complete?

--

Go to Exterior Lights System Check

--