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:
Fail–safe chart
If any of the following codes is recorded, the ecm enters the fail–safe mode.
Check for intermittent problems
Hand–held tester only:
by putting the vehicle’s ecm in the check mode, the 1 trip detection logic is
possible instead of the
2 trip detection logic, and the sensitivity to de ...
Circuit description
When a misfire occurs in the engine, hydrocarbons (hc) enter the exhaust in
high concentrations. If this hc
concentration is high enough, there could be an increase in exhaust emissions
levels. High concentrations
of hc passing through the catalyst also cause to temperature of the catalyst to ...
Overhaul
Hint:
overhaul the rh side by the same procedure as the lh side.
1. Remove front wheel
2. Drain brake fluid
Notice:
wash the brake fluid off immediately if it comes into contact with any painted
surface.
3. Remove front disc brake cylinder sub–assy
Remove the union bolt and gasket ...


