Possible Causes
- Incorrect sensor input
- Stuck valve
- ABS module
- Incorrect sensor input
- Stuck valve
- EBB unit (HCU and ABS module assembly)
- Incorrect sensor input
- Stuck valve
- ABS module
- Incorrect sensor input
- Stuck valve
- EBB unit (HCU and ABS module assembly)
- Y3: RECHECK THE ABS MODULE FOR DTCS
- Y4: VERIFY THE ABS MODULE TO HCU FASTENERS
- Ignition OFF.
- Verify all ABS module-to-HCU fasteners are tightened to their correct torque specifications. Refer to the Anti-Lock Brake System (ABS) and Stability Control article.
- Are fasteners tightened to their correct torque specifications?
Yes No Go to Y5. TIGHTEN all ABS module fasteners to their correct torque specifications.
Go to Y5.
- Y5: CHECK FOR CORRECT ABS MODULE OPERATION
- Y6: CHECK FOR CORRECT ABS OPERATION