For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Inspect the T/SIG 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 539

• | CKT 1508

Is the repair complete?

--

Go to Exterior Lights System Check

--

3 |

1. Turn the ignition switch to the RUN position.
2. Use a test lamp in order to backprobe between C201 terminal A2 and ground.

Did the test lamp light?

--

Go to Step 5

Go to Step 4

4 | Repair the following conditions in CKT 539:

• | A faulty connection

• | An open circuit

Is the repair complete?

--

Go to Exterior Lights System Check

--

5 | Use a test light in order to backprobe between connector C201 terminal E1 and ground. Does the test light illuminate? | -- | Go to Step 7 | Go to Step 6
6 |

1. Replace the turn signal switch.
2. Inspect the system.

Is the repair complete?

--

Go to Exterior Lights System Check

--

7 | Use a test light to backprobe the hazard lamp/turn signal flasher between connector terminal A1 and connector terminal B2. Does the test light illuminate? | -- | Go to Step 9 | Go to Step 8
8 | Repair the following conditions, as needed:

• | A faulty connection or an open in CKT 1508

• | A faulty connection or an open in CKT 1450 between B2 and ground

Has the repair been made?

--

Go to Exterior Lights System Check

--

9 |

1. Turn the turn signal switch to the ON position.
2. Use a test light in order to backprobe the hazard lamp/turn signal flasher connector between terminal C1 and ground.

Is the test light flashing?

--

Go to Step 11

Go to Step 10

10 | Replace the turn signal/hazard lamp flasher. Refer to Hazard and Turn Signal Flasher Replacement . Has the repair been made? | -- | Go to Exterior Lights System Check | --
11 |

1. Turn the turn signal switch to the ON position.
2. Use a test light in order to backprobe the turn signal switch harness connector C201 terminal A4 to ground.

Is the test light flashing?

--

Go to Step 6

Go to Step 12

12 | Repair the faulty connection or the open in CKT 16. Has the repair been made? | -- | Go to Exterior Lights System Check | --