Vehicle Jerks During VDC/TCS/ABS Control

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 EC-86 (VQ35DE), EC-702 (VK45DE).
Trouble Diagnosis Introduction
^ TCM: Refer to AT-43.
NO >> Replace ABS actuator and electric unit (control unit).