For 1990-2009 cars

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 | Was the Exterior Lights System Check performed? | -- | Go to Step 2 | Go to Exterior Lights System Check
2 | Disconnect the combination switch. Do the lamps turn off? | -- | Go to Step 3 | Go to Step 4
3 | Replace the combination switch. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement in Restraints. Is the repair complete? | -- | Go to Exterior Lights System Check | --
4 | Remove the light 1 relay. Do the lamps turn off? | -- | Go to Step 5 | Go to Step 7
5 | Test for a short to ground in the RED/GRN wire between the light 1 relay and the combination switch. Was a short found? | -- | Go to Step 11 | Go to Step 6
6 | Replace the light 1 relay. Is the repair complete? | -- | Go to Exterior Lights System Check | --
7 | Disconnect the junction block connector C5. Do the lamps turn OFF? | -- | Go to Step 8 | Go to Step 9
8 | Repair the short to ground in the RED/YEL wire between the following components:

• | The light 1 relay

• | The front park lamps

• | The junction block

Is the repair complete?

--

Go to Exterior Lights System Check

--

9 | Test the RED/YEL wire for a short to ground between the following components:

• | The junction block

• | The license plate lamps

• | The illumination lamp of the manual selector lever

• | The rear combination lamps

Was a short found?

--

Go to Step 11

Go to Step 10

10 | Refer to Interior Lights Dimming System Check in order to diagnose the interior lights dimming system. Is the diagnosis complete? | -- | Go to Interior Lamps System Check | --
11 | Repair the short to ground. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Interior Lamps System Check | --