Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Hazard warning switch circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check hazard warning signal switch assy
- Check the hazard warning switch continuity, as shown in the illustration and table.
Standard:
2 Check turn signal flasher assy
3 Check wire harness (tvip ecu turn signal flasher)
- Disconnect the tvip ecu and turn signal flasher connectors.
- check the continuity between the terminals of the tvip ecu and turn signal flasher connectors, as shown in the illustration and table.
Standard:
4 Check wire harness (hazard warning switch body ground)
- Disconnect the hazard warning switch connector.
- check the continuity between the terminal of the hazard warning switch connector and the body ground, as shown in the illustration and table.
Standard:
Check and replace tvip ecu
Other materials:
Fuel
Service data
Torque specification
Emission control
Service data
...
Circuit description
The seat belt buckle switch (lh) circuit consists of the airbag sensor assy
center and front seat inner belt
assy (lh).
Dtc b0126/b0127/27 is recorded when a malfunction is detected in the seat belt
buckle switch (lh) circuit.
Wiring diagram
...
Circuit description
The door key lock and unlock switch is built in the door lock motor.
Wiring diagram
Inspection procedure
1 Check door lock
2 Check wire harness (tvip ecu door lock)
Disconnect the tvip ecu and door lock connectors.
check the continuity between the terminals of the t ...