ESP® Warning Light Does Not Come ON at Ignition Switch ON: Troubleshooting
ESP® WARNING LIGHT SYMPTOM TROUBLESHOOTING REFERENCE CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Warning light check
Do other warning lights come ON? |
Substitute a known-good combination meter and recheck. If warning light remains OFF, substitute a known-good ESP® hydraulic unit/control module assembly and recheck. | Go to Step 2. |
| 2 | Fuse check Is circuit fuse for combination meter in good condition? |
Go to Step 3. | Replace fuse and check for short circuit to ground. |
| 3 | Combination meter power supply circuit check
Is it 10 - 14 V? |
Go to Step 4. | Repair power supply circuit for combination meter. |
| 4 | Combination meter ground circuit check
Is resistance less than 2 Ω? |
Substitute a known-good combination meter and recheck. | "BLK" circuit open or high resistance. |