DTC Troubleshooting
DIAGNOSTICS PROCEDURE CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check for ESP®
Is DTC U0073 and/or U0100 detected? |
Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | Brake light switch circuit check
Are they in good condition? |
Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | Repair or replace. |