( TL19E00K75100081280FAAT00 )

DTC Troubleshooting: 28

LKAS Control Unit DTC 28:
Wheel Speed Signal Value Error (Wheel Speed Signal)

1. Clear the DTCs with the HDS.

1. Do the following check.
   - Suspension is not modified
   - All four tyres the correct size and the same manufacturer
   - All four tyres the correct pressure

Are they normally?

YES | - | Go to Step 3 .

NO

-

- Adjust the wheel alignment
- Adjust the tyre pressure
- Change for the standard tyres

1. Start the engine with the LKAS activated, test-drive vehicle on a straight road at 72 km/h (45 mph) or more for 2 minutes or more.

1. Watch the LKAS indicator.

Does the LKAS indicator come on?

YES | - | Go to Step 5 .
NO | - | Intermittent failure, the system is OK at this time.■

1. Check for DTC with the HDS.

Is DTC 28 indicated?

YES | - | Check for loose terminals in the LKAS control unit connector, then repair if necessary. If all connections are OK, replace the LKAS control unit. ■
NO | - | Troubleshoot the indicated DTC(s).■