For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open.
1 |

1. Disconnect the hazard switch connector.
2. Connect a test lamp between terminal C of the hazard switch connector and ground.
3. Turn the ignition switch to the RUN position.

Does the test lamp light?

--

Go to Step 2

Go to Step 3

2 | Connect the test lamp between terminal A and terminal C of the hazard switch connector. Does the test lamp light? | -- | Go to Step 4 | Go to Step 5
3 | Use the test lamp in order to backprobe the left IP junction block connector C1 between terminal B4 and ground. Does the test lamp light? | -- | Go to Step 6 | Go to Step 7
4 |

1. Reconnect the hazard switch connector.
2. Use the test lamp in order to backprobe the hazard switch connector between terminal K and ground.
3. Turn the hazard lights on.
4. Turn the left turn signal on.

Does the test lamp flash?

--

Go to Step 8

Go to Step 9

5 | Repair the open in CKT 150 between the hazard switch and ground splice pack G201. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Exterior Lights System Check | --
6 | Repair the open in CKT 739 between the left IP junction block and the hazard switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Exterior Lights System Check | --
7 | Replace the left IP junction block. Refer to Relay/Fuse Center Replacement in Wiring Systems. Is the repair complete? | -- | Go to Exterior Lights System Check | --
8 | Replace the hazard switch. Refer to Hazard Flasher Switch Replacement in Instrument Panel, Gauges, and Console. Is the repair complete? | -- | Go to Exterior Lights System Check | --
9 |

1. Use the test lamp in order to backprobe the turn/headlamp switch assembly connector C2 between terminal D and ground.
2. Leave the hazard lamps and the left turn signal on.

Does the test lamp flash?

--

Go to Step 10

Go to Step 11

10 | Repair the open in CKT 16 between the hazard switch and the turn/headlamp switch assembly. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Exterior Lights System Check | --
11 | Replace the turn/headlamp switch assembly. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column - Tilt. Is the repair complete? | -- | Go to Exterior Lights System Check | --