Theft Deterrent System (W/ Entry And Start System) - How To Proceed With Troubleshooting
THEFT DETERRENT SYSTEM (w/ Entry and Start System) - HOW TO PROCEED WITH TROUBLESHOOTING
Use these procedures to troubleshoot the theft deterrent system.
*: Use the intelligent tester.
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 entry and start system are operating normally. Check these systems first before troubleshooting the theft deterrent system.
| 1.VEHICLE BROUGHT TO WORKSHOP |
| 2.INSPECT BATTERY VOLTAGE |
- Standard voltage:
- 11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
| 3.INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
Use the intelligent tester to check if the CAN communication system is functioning normally.
Result| Result | Proceed to |
| CAN DTC is not output | A |
| CAN DTC is output (for LHD) | B |
| CAN DTC is output (for RHD) | C |
| | Go to CAN COMMUNICATION SYSTEM () |
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| | Go to CAN COMMUNICATION SYSTEM () |
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| 4.CHECK LIN COMMUNICATION SYSTEM* |
The theft deterrent system uses the LIN communication system to communicate. Check that the LIN communication system is functioning normally.
Result| Result | Proceed to |
| LIN communication system is normal | A |
| LIN communication system is malfunctioning | B |
| | Go to LIN COMMUNICATION SYSTEM () |
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Check for DTCs () and note any codes that are output.
Based on the DTCs output above, try to force output of the same DTC by simulating the symptoms indicated by the DTC. Then recheck for DTCs.
Result| Result | Proceed to |
| DTC output does not reoccur | A |
| DTC output reoccurs | B |
Refer to Problem Symptoms Table ().
Result| Result | Proceed to |
| Fault is not listed in problem symptoms table | A |
| Fault is listed in problem symptoms table | B |
| 7.OVERALL ANALYSIS AND TROUBLESHOOTING* |
Data List / Active Test ()