Vehicle Jerks During VDC/TCS/ABS Control

Vehicle Jerks During VDC/TCS/ABS Control
1. CHECK ENGINE SPEED SIGNAL
Conduct CONSULT-II VDC/TCS/ABS control unit "Data Monitor".
Is engine speed at idle 400 rpm or higher?
YES >> GO TO 3.
NO >> GO TO 2.

2. CHECK ECM SELF-DIAGNOSIS RESULT ITEM
Perform ECM self-diagnosis.
Are self-diagnosis items displayed?
YES >> Check the corresponding items. Refer to Introduction
NO >> GO TO 3.

3. SYMPTOM CHECK 1
Check if the vehicle jerks during VDC/TCS/ABS control.
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.

4. CHECK A/T SELF-DIAGNOSIS RESULTS ITEM
Perform A/T self-diagnosis.
OK or NG
OK >> GO TO 5.
NG >> Check the corresponding items. Refer to Initial Inspection and Diagnostic Overview

5. SYMPTOM CHECK 2
Check if the vehicle jerks during VDC/TCS/ABS control.
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.

6. CHECK SELF-DIAGNOSIS RESULT ITEM 1
Conduct self-diagnosis of the VDC/TCS/ABS control unit.
Are self-diagnosis items displayed?
YES >> Check the corresponding items, make repairs, and re-conduct the VDC/TCS/ABS control unit self diagnosis.
NO >> GO TO 7.

7. CHECK CONNECTOR
1. Disconnect the VDC/TCS/ABS control unit and the ECM connectors, check the terminals for deformation, disconnection, looseness, and so on. If there is an error, repair or replace the connector.
2. Securely reconnect the connector and conduct self-diagnosis.
OK or NG
OK >> If the connector terminal contact is loose, damaged, open or shorted, repair or replace the connector terminal.
NG >> GO TO 8.

8. CHECK SELF-DIAGNOSIS RESULT ITEM 2
Re-conduct the VDC/TCS/ABS control unit self-diagnosis.
Are self-diagnosis items displayed?
YES >> Repair or replace any non-standard items.
NO >> GO TO 9.

9. CHECK CIRCUIT BETWEEN VDC/TCS/ABS CONTROL UNIT AND THE ECM
Check CAN communication system.
OK or NG
OK >> INSPECTION END
NG >> Connect the connectors, and re-conduct the VDC/TCS/ABS control unit self-diagnosis.