How To Proceed With Troubleshooting

THEFT DETERRENT SYSTEM:

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:
- Use these procedures to troubleshoot the theft deterrent system.
- *: Use Techstream.

1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
2. INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the result is not as specified, recharge or replace the battery before proceeding.
NEXT -- Continue to next step.
3. INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)*
(a) Use Techstream, check for normal function of the multiplex communication system (Theft Deterrent System).

Result:





B -- Go to MULTIPLEX COMMUNICATION SYSTEM
A -- Continue to next step.
4. PROBLEM SYMPTOMS TABLE

Result:





B -- Go to step 6
A -- Continue to next step.
5. OVERALL ANALYSIS AND TROUBLESHOOTING*
(a) Operation Check (Operation Check)

(b) Data List/ Active Test (Theft Deterrent System)

(c) Terminals of ECU (Theft Deterrent System)

(d) Inspection
(1) Engine hood courtesy switch (Testing and Inspection)

(2) Security horn (Testing and Inspection)

NEXT -- Continue to next step.
6. ADJUST, REPAIR OR REPLACE
NEXT -- Continue to next step.
7. CONFIRMATION TEST
NEXT -- END