How to Proceed With Troubleshooting

THEFT DETERRENT: THEFT DETERRENT SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use these procedures to troubleshoot the theft deterrent system.
* *: Use the Techstream.
* Troubleshooting of the theft deterrent system is based on the premise that the door lock control system, the wireless door lock control system, the lighting system, the horn system, the engine immobiliser system and the smart access system with push-button start are operating normally. Check these systems first before troubleshooting the theft deterrent system.

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

NEXT -- Continue to next step.

3. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check if the CAN communication system is functioning normally.

Result





B -- Go to CAN COMMUNICATION SYSTEM
A -- Continue to next step.

4. CHECK LIN COMMUNICATION SYSTEM*

(a) The theft deterrent system uses the LIN communication system to communicate. Check that the LIN communication system is functioning normally.

Result





B -- Go to LIN COMMUNICATION SYSTEM
A -- Continue to next step.

5. PROBLEM SYMPTOMS TABLE

Result





B -- Go to step 7
A -- Continue to next step.

6. OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test Theft Deterrent System

(b) Terminals of ECU Theft Deterrent System

(c) On-vehicle Inspection On-Vehicle Inspection

(d) Inspection

(1) Engine Hood Courtesy Switch Testing and Inspection

(2) Security Indicator Light Testing and Inspection

(3) Security Horn Assembly Testing and Inspection

NEXT -- Continue to next step.

7. REPAIR OR REPLACE

NEXT -- Continue to next step.

8. CONFIRMATION TEST

NEXT -- END