Toyota Corolla Repair Manual: Electronic control
- Removal and installation of battery terminal
- before performing electrical work, disconnect the battery negative (–) terminal cable beforehand so as to prevent burnt–out damage by short.
- When disconnecting and installing the terminal cable, turn the ignition switch and lighting switch off, and loosen the terminal nut completely. Perform these operations without twisting or prying the terminal.
- When the battery terminal is removed, all the memories
of the clock, radio, dtcs, etc. Will be erased.
So before removing it, check them and note them down.
- Handling of electronic parts
- do not open the cover or case of the ecu unless absolutely necessary (if the ic terminals are touched, the ic may be destroyed by static electricity).
- To disconnect electronic connectors, pull the connector itself, not the wires.
- Be careful not to drop electronic components, such as sensors or relays. If they are dropped on a hard floor, they should be replaced and not be reused.
- When cleaning the engine with steam, protect the electronic components, air filter and emission–related components from water.
- Never use an impact wrench to remove or install temperature switches or temperature sensors.
- When checking the continuity at the wire connector, insert the tester probe carefully to prevent terminals from bending.
For vehicles equipped with srs airbag and seat belt pretensioner
Hint:
the vehicle is equipped with an srs (supplemental restraint system), such as the
horn button assembly,
the instrument panel passenger airbag assembly, the front seat airbag assembly,
the c ...
Removal and installation of fuel control parts
Place for removing and installing of fuel system parts
work in a place with good air ventilation and without anything
flammable such as welder, grinder,
drill, electric motor or st ...
Other materials:
Trip information
■ Switching the display
Items displayed can be switched by pressing the display change button.
■ Odometer
Displays the total distance the vehicle has been driven.
■ Trip meter A/trip meter B
Displays the distance the vehicle has been driven since the meter was last reset.
...
Circuit description
A flat type knock sensor (non–resonant type) has the structure that can
detect the vibration in a wider band
of frequency from about 6 khz to 15 khz and has the following features.
Knock sensors are fitted on the cylinder block to detect the engine knocking.
The sensor contains a piezoelect ...
Replacing a flat tire
1 Chock the tires.
2 For vehicles with steel wheels, remove the wheel ornament using the wrench.
To protect the wheel ornament, place a rag between the wrench and the wheel ornament,
as shown in the illustration.
3 Slightly loosen the wheel nuts (one turn).
4 Turn the tire jack portion ...