Monitor GDS Data
- Connect ScanTool to Data Link Connector (DLC).
- Warm up the engine to normal operating temperature.
- Using ScanTool, check if there is an error in SAS system.
If there is an error in SAS, first do a troubleshooting for those system and then check LKAS system.
- Is the same DTC displayed again?
YES
- Substitute with a known - good SAS and check for proper operation. If the problem is corrected, replace SAS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- Replace SAS with a working unit. If the problem is fixed, replace SAS with a new unit, and then perform the "VERIFICATION OF VEHICLE REPAIR " procedure.
- If the problem exists, Replace LKAS ECU with a working unit. If the problem is fixed, replace LKAS ECU with a new unit, and then perform the "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.