Diagnostic Aids
If there are several other systems inoperative with the ignition ON, such as power windows, power seats, sunroof, and front turn signals, check ground G101.
Step | Action | Values | Yes | No |
|---|---|---|---|---|
1 | Inspect fuses F12, EF16, EF14, EF10 and EF13. Are any fuses open? | -- | Go to Step 2 | Go to Step 3 |
2 |
Is the repair complete? | -- | System OK | -- |
3 | Use a voltmeter to measure the voltage at F12. Does the voltage measure within the specified range? | 11-14 V | Go to Step 5 | Go to Step 4 |
4 | Repair the open power supply circuit to fuse EF12. Is the repair complete? | -- | System OK | -- |
5 | Turn the headlamps ON. Are the parking lamps, tail lamps, and license lamps working? | -- | Go to Step 6 | Go to Step 8 |
6 | Temporarily substitute the illumination relay in place of the headlamp relay. Do the headlamps operate with the substituted relay? | -- | Go to Step 7 | Go to Step 8 |
7 |
Is the repair complete? | -- | System OK | -- |
8 |
Does the ohmmeter indicate the specified value between each terminal and ground? | 0 ohms | Go to Step 10 | Go to Step 9 |
9 | Repair the open circuit between the headlamps and ground. Is the repair complete? | -- | System OK | -- |
10 |
Is the voltage within the specified range? | 11-14 V | Go to Step 12 | Go to Step 11 |
11 | Repair the open circuit between the light relay and the light switch. Is the repair complete? | -- | System OK | -- |
12 | Use an ohmmeter to check continuity between light switch connector, terminal 2 harness side, and ground. Did the ohmmeter indicate the specified value? | 0 ohms | Go to Step 14 | Go to Step 13 |
13 | Repair the open circuit between light switch connector and ground. Is the repair complete? | -- | System OK | -- |
14 | Replace the light switch. Is the repair complete? | -- | System OK | -- |
