For 1990-2009 cars

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 | Inspect the headlamps. Do the headlamps work? | -- | Go to Step 3 | Go to Step 2
2 | Repair the headlamps before continuing with this chart. After the headlamps have been repaired, are the parking lamps and tail lamps still inoperative? | -- | Go to Step 3 | System OK
3 |

1. Turn the parking lamps ON.
2. Use a voltmeter to measure the voltage at the bulb socket positive terminal.

Does voltage at the bulb socket measure within the specified range?

11-14 V

Go to Step 4

Go to Step 7

4 | Connect an ohmmeter between ground and the lamp socket negative terminal. Is the resistance equal to the specified value? | 0 ohms | Go to Step 6 | Go to Step 5
5 | Repair the ground circuit for the lamps. Did you complete the repair? | -- | System OK | --
6 | Replace the faulty bulbs. Did you complete the replacement? | -- | System OK | --
7 | Inspect fuses Ef23 and Ef28. Are any of the fuses open? | -- | Go to Step 8 | Go to Step 9
8 |

1. Inspect for a short circuit and repair it, if necessary.
2. Replace the fuse.

Did you find and correct the condition?

--

System OK

--

9 |

1. Turn the headlamps ON.
2. Measure the voltage at fuses Ef23, left-side illumination lamp, and Ef28, right-side illumination lamp.

Does the voltage at the fuses measure within the specified range?

11-14 V

System OK

Go to Step 10

10 | Repair the open circuit between the fuses Ef23 and Ef28 and the illumination lamps. Did you complete the repair? | -- | System OK | --