Vehicle Jerks During VDC/TCS/ABS Control

TROUBLE DIAGNOSIS FOR SYMPTOMS


Vehicle Jerks During VDC/TCS/ABS Control

1.SYMPTOM CHECK
Check if the vehicle jerks during VDC/TCS/ABS control.
OK or NG
OK - Normal.
NG - GO TO 2.
2.CHECK SELF-DIAGNOSIS RESULTS
Perform self-diagnostic of ABS actuator and electric unit (control unit).
Are self-diagnosis results indicated?
YES - Check corresponding items, make repairs, and perform ABS actuator and electric unit (control unit) self-diagnosis.
NO - GO TO 3.
3.CHECK CONNECTOR
- Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector and check terminal for deformation, disconnection, looseness, etc.
- Securely connect connectors and perform ABS actuator and electric unit (control unit) self-diagnosis.
Are self-diagnosis results indicated?
YES - If poor contact, damage, open or short circuit of connector terminal is found, repair or replace.
NO - GO TO 4.
4.CHECK ECM AND TCM SELF-DIAGNOSIS RESULTS
Perform ECM and TCM self-diagnosis.
Are self-diagnosis results indicated?
YES - Check the corresponding items.
- ECM: Refer to Diagnosis Description (VQ35HR), (VK45DE).
- TCM: Refer to 5AT RE5R05A (5AT: RE5R05A), 7AT RE7R01A (7AT: RE7R01A).
NO - Replace ABS actuator and electric unit (control unit).