Applicable Systems
OBD-II
Symptoms
The ESC/ESP warning light illuminates. The vehicle stability control system is disabled, increasing the risk of skidding in adverse conditions. DTC C0268 is stored in the chassis control module.
Possible Causes
- ESC hydraulic unit fault
- Yaw rate sensor failure
- Lateral acceleration sensor fault
- Steering angle sensor misalignment
Troubleshooting Steps
- Step 1: Connect a diagnostic scanner and read chassis DTCs to confirm C0268
DTC C0268 is present with freeze frame data showing conditions when it set - Step 2: Inspect wiring and connectors in the affected circuit for corrosion, damage, or loose pins
Wiring intact, connectors clean and properly seated - Step 3: Perform component-level testing per manufacturer diagnostic procedure for the specific subsystem
Component values within specification or component confirmed faulty - Step 4: Clear the DTC and verify it does not return after a road test
DTC does not return; system warning light stays off
How to Reset
Clear the DTC after repair using a diagnostic scanner. The code will clear automatically if the fault is no longer detected after 3 consecutive drive cycles.
Frequently Asked Questions
- Q: What does code C0268 mean?
This is a chassis-related diagnostic trouble code indicating an issue with the stability control system. The specific subsystem should be diagnosed using the manufacturer's diagnostic procedure.
- Q: Can I drive with code C0268?
Limited driving is possible, but the affected chassis system may not function correctly. Have the vehicle diagnosed promptly to ensure safety systems like ABS and stability control are operational.
Source: SAE J2012 Standard OBD-II Diagnostic Trouble Codes
Category: OBD-II