Toyota Corolla Repair Manual: 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
Inspection procedure
1 Check low pitched horn assy
Connect the positive (+) lead from the battery to the terminal
and negative (–) lead to the horn body, and check that
the horn blows.
2 Check relay (ma ...
Other materials:
Other functions
■ Switching between outside air and recirculated air modes
Press .
The mode switches between outside air mode (indicator off) and recirculated air
mode (indicator on) each time is pressed.
■ Defogging the windshield
Defoggers are used to defog the windshield and front side w ...
Entire combination meter does not operate
Wiring diagram
Inspection procedere
1 Check fuse
Check that continuity exists of dome fuse.
check that continuity exists of gauge fuse.
check that continuity exists of am1 fuse.
2 Inspect combination meter assy
Check continuity.
Disconnect the ”c9 ...
Inspection procedure
1 Inspect transmission wire(s2)
Disconnect the transmission wire connector from the
transaxle.
measure the resistance according to the value(s) in the
table below.
Standard:
2 Check harness and connector(transmission wire – ecm)
Connect the transmission connecto ...