Schematic Reference: Exterior Lights Schematics

Did you review the turn signal operation and perform the necessary inspections?

Go to Step 2

Go to Exterior Lighting Systems Description and Operation

1. Turn ON the ignition with the engine OFF.
2. Operate the turn signal switch in both the left and right hand turn signal positions.

Does the turn signal system operate normally?

Go to Testing for Electrical Intermittents in Wiring Systems

Go to Step 3

Are all of the turn signal lamps inoperative?

Go to Step 8

Go to Step 4

Is only one turn signal lamp inoperative?

Go to Step 5

Go to Step 7

Test the turn signal lamp supply voltage circuit of the inoperative lamp for high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 6

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

Did you find and correct the condition?

Go to Step 25

Go to Step 16

Are only the turn signal indicators inoperative?

Go to Step 15

Go to Step 14

Operate the hazard switch.

Are the hazard lamps also inoperative?

Go to Step 9

Go to Step 11

Test the ground circuit of the turn/hazard flasher for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 10

Test the turn/hazard module signal circuit for an open, short to ground or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 19

1. Turn on the left or right turn signal.
2. Connect a test lamp between the turn/hazard module supply voltage circuit at the turn/hazard flasher and a good ground.

Does the test lamp illuminate?

Go to Step 17

Go to Step 12

Test the turn/hazard module supply voltage circuit of the turn/hazard flasher for an open, short to ground or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 13

Test the ignition 1 voltage circuit of the turn/hazard switch for an open, short to ground or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 19

Test the appropriate turn lamp supply voltage circuit for a short to ground, open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 19

1. Disconnect the instrument cluster connector.
2. Connect a test lamp between the appropriate turn signal lamp supply voltage circuit of the IC connector and a good ground.
3. Turn ON the ignition with the engine OFF.
4. Turn the turn signal switch to the appropriate turn signal on position.

Does the test lamp illuminate with the turn signal?

Go to Step 18

Go to Step 20

Inspect for poor connections at the harness connector of the inoperative lamp connector. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 21

Inspect for poor connections at the harness connector of the turn hazard flasher connector. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 22

Inspect for poor connections at the harness connector of the instrument cluster connector. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 23

Inspect for poor connections at the harness connector of the turn/hazard switch. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 24

Repair the high resistance or an open in the turn signal indicator lamp circuit. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 25

--

Replace the inoperative lamp. Refer to Parking and Turn Signal Lamp Replacement or Tail/Turn Signal Lamp Replacement .

Did you complete the replacement?

Go to Step 25

--

Replace the turn/hazard flasher.

Did you complete the replacement?

Go to Step 25

--

Replace the instrument panel cluster or lamp as necessary. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console, or Instrument Cluster Bulb Replacement .

Did you complete the replacement?

Go to Step 25

--

Replace the multifunction, turn signal and hazard switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column.

Did you complete the replacement?

Go to Step 25

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3