Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Toyota vehicle intrusion protection system / Horn relay circuit / Inspection procedure
Toyota Corolla (E120): 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
Other materials:
Automatic transaxle fluid (atm)
On–vehicle inspection
1. Check the fluid level
Hint:
drive the vehicle so that the engine and transaxle are at normal
operating temperature.
Fluid temperature: 70 – 80 °c (158 – 176 °f)
park the vehicle on a level surface and set the parking
brake.
with the engin ...
Changing the engine switch positions
1 “LOCK”
The steering wheel is locked and the key can be removed. (Vehicles with an automatic
transmission or continuously variable transmission: The key can be removed only
when the shift lever is in P.) 2 “ACC”
Some electrical components such as the audio system can be used.
3 “ON ...
Maintenance data (fuel, oil level,
etc.)
Dimensions and weight
*1:Unladen vehicles
*2:Vehicles without 18-inch tires
*3:Vehicles with 18-inch tires for Guam and Saipan
*4:Vehicles with 18-inch tires except for Guam and Saipan
*5:For Guam and Saipan
Seating capacity
Vehicle identification
■ Vehicle identification number
The vehicle iden ...


