Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Light control switch circuit
Toyota Corolla (E120): Light control switch circuit
Wiring diagram
Inspection procedure
1 Check headlamp dimmer switch assy (light control switch)
2 Check wire harness (tvip ecu light control switch)
- Disconnect the tvip ecu and light control switch connectors.
- check the continuity between the terminals of the tvip ecu and light control switch connectors, as shown in the illustration and table.
Standard:
3 Check wire harness (light control switch body ground)
- Disconnect the light control switch connector.
- check the continuity between the terminal of the light control switch connector and the body ground, as shown in the illustration and table.
Standard:
Proceed to next circuit inspection shown on problem symptoms table
Other materials:
How to proceed with troubleshooting
1 Vehicle brought to workshop
2 Customer problem analysis
3 Problem symptom confirmation
4 Circuit inspection
5 Repair or replace
6 Confirmation test
7 End
Customer problem analysis check
...
Clock assy
Replacement
1. Remove console panel upper
2. Remove heater control knob
3. Remove instrument cluster finish panel
4. Remove clock assy
Using a screwdriver, disengage the 4 claws, remove the
clock as shown in the illustration.
Hint:
tape the screwdriver tip before use. ...
On–vehicle inspection
1. Inspect cooling system for leaks
Caution:
to avoid the danger of being burned, do not remove the radiator
cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
fill the radiator with coolant and attach a radiator cap tester.
...