Instrument Panel Illumination Diagnosis
Instrument Panel Illumination Lamps Inoperative
DIAGNOSTIC INFORMATION AND PROCEDURES
| Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
| 1 | Check fuse Ef28. Is fuse Ef28 blown? |
- | Go to Step 2 | Go to Step 3 |
| 2 |
Is the repair complete? |
- | System OK | - |
| 3 |
Does the battery voltage match the value specified? |
11-14 V | Go to Step 5 | Go to Step 4 |
| 4 | Repair the open power supply circuit to fuse Ef28. Is the repair complete? |
- | System OK | - |
| 5 | Use an ohmmeter to check the resistance between ground and the BLK wire of the dimmer control switch connector. Is the resistance equal to the specified value? |
0 | Go to Step 7 | Go to Step 6 |
| 6 | Repair the open ground circuit. Is the repair complete? |
- | System OK | - |
| 7 |
Does the battery voltage match the value specified? |
11-14V | Go to Step 9 | Go to Step 8 |
| 8 | Repair the open circuit between the BRN/WHT wire of the dimmer control switch connector and fuse Ef28. Is the repair complete? |
- | System OK | - |
| 9 |
Does the battery voltage match the value specified? |
11-14V | Go to Step 11 | Go to Step 10 |
| 10 | Repair the open circuit between the DK GRN wire of the dimmer control switch connector and each lamps. Is the repair complete? |
- | System OK | - |
| 11 | Replace the dimmer control switch. Is the repair complete? |
- | System OK | - |