Toyota Corolla (E120) 2002–2008 Repair Manual / Communication system
Toyota Corolla (E120): Communication system
Horn system
Location
Problem symptoms table
Inspection
1. Inspect low pitched horn assy
- Connect the positive (+) lead from the battery to the terminal and the negative (–) lead to the horn body, and check that the horn blows.
If the result is not as specified, replace the horn.
2. Inspect horn relay assy (marking: horn)
- Remove the horn relay from the engine room j/b.
- inspect the horn relay continuity.
Standard:
If the result is not as specified, replace the relay.
Other materials:
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
e ...
Description
When troubleshooting obd ii vehicles, the only difference
from the usual troubleshooting procedure is that you
need to connect the vehicle to the obd ii scan tool complying
with sae j1978 or the hand–held tester, and read
various data output from the vehicle’s ecm.
Obd ii regulation ...
Inspection procedure
Hand–held tester:
1 Check fuel tank cap assy(check that fuel tank cap is toyota
genuine parts)
2 Check that fuel tank cap is correctly installed
3 Inspect fuel tank cap assy
4 Check filler neck for damage
Remove the fuel tank cap.
visually check the fuel inlet pipe for ...