Toyota Corolla Repair Manual: 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 (marking: horn)
- Remove the relay from the engine room j/b.
- check the horn relay continuity, as shown in the illustration and table.
Standard:
3 Check wire harness (tvip ecu engine room j/b)
- Remove the horn relay from the engine room j/b.
- check the continuity between the terminals of the tvip ecu and engine room j/b connectors, as shown in the illustration and table.
Standard:
*: Horn relay terminal
4 Check wire harness (engine room j/b horn)
- Check the continuity between the terminals of the engine room j/b and horn connectors, as shown in the illustration and table.
Standard:
*: Horn relay terminal.
Check and replace tvip ecu
Circuit description
When the tvip system is transferred from the armed state to the alarm
sounding state, the tvip ecu
switches on the horn relay so that it can sound the horns. The horn sounds in
0.4 Seconds interv ...
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 ...
Other materials:
Inspection procedure
1 Check wire harness(dlc3 – airbag sensor assy center)
Turn the ignition switch to the lock position.
disconnect the aribag sensor assy center connector.
measure the resistance according to the value(s) in the
table below.
Standard:
2 Check wire harness(cg of dlc3 ...
Using a flat bed truck
If you use chains or cables to tie down your vehicle, the angles shaded in black
must be 45°.
Do not overly tighten the tie downs or the vehicle may be damaged.
■Before emergency towing
1 Vehicles without a smart key system: Put the engine switch in the “ACC” (engine
off) or “ON” posi ...
Inspection procedure
1 Check side squib(rh) circuit(airbag sensor assy center – front
seat airbag assy rh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the front seat airbag assy (rh ...