Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Wireless door lock control system / How to proceed with troubleshooting
Toyota Corolla (E120): How to proceed with troubleshooting
Hint
:
- troubleshooting of the wireless door lock control system is based on the premise that the power door lock system is operating normally. Therefore, before troubleshooting the wireless door lock control system, first make certain that the the power door lock system is operating normally.
- Use this procedure to troubleshoot the wireless door lock control system.
1 Vehicle brought to workshop

2 Customer problem analysis check and symptom check

3 Problem symptoms table
- If the fault is not listed on the problem symptoms table, proceed to a.
- if the fault is listed on the problem symptoms table, proceed to b.


4 Overall analysis and troubleshooting
- Terminals of ecu
- on–vehicle inspection
5 Adjust, repair or replace

6 Confirmation test

End
Customer problem analysis check

Location

Other materials:
Roof drip side finish moulding center lh
Replacement
Hint:
use the same procedures for the rh side and lh side.
The installation procedures are the removal procedures in reverse
order. However, only installation
procedures requiring additional information are included.
1. Remove roof drip side finish moulding center lh
...
Problem symptoms table
The suspected circuits or parts for each problem symptom are shown in the
table below. Use this table to
troubleshoot the problem when a normal code is displayed in the diagnostic
trouble code chart but the problem
is still occurring. Numbers in the table indicate the order in which the
circ ...
Inspection procedure
Hint:
read freeze frame data using the hand-held tester or the obd ii scan tool.
Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, it is
useful for determining whether
the vehicle was running or stopped, the engine was warmed up or not, the ...


