Toyota Corolla (E120) 2002–2008 Repair Manual / Introduction / Repair instruction / Precaution / Electronic control
Toyota Corolla (E120): 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.

Other materials:
Safety Connect services
■ Automatic Collision Notification
In case of either airbag deployment
or severe rear-end collision,
the system is designed to
automatically call the response
center. The responding agent
receives the vehicle's location
and attempts to speak with the vehicle occupants to assess the
level of emerge ...
Selecting wheel set (vehicles
with a tire pressure
warning system)
Your vehicle is equipped with a
tire pressure warning system
with a function to register two
sets of ID codes. This allows for
registration of a second wheel
set, for example a winter set.
The wheel set can be changed
only if a second wheel set has
been registered to the system. If
a second wheel s ...
Overhaul
1. Inspect 1st gear thrust clearance
Using a feeler gauge, measure the 1st gear thrust clearance.
Standard clearance:
0.10 – 0.40 Mm (0.0039 – 0.0157 In.)
2. Inspect 2nd gear thrust clearance
Using a dial indicator, measure the 2nd gear thrust clearance.
Standard clearan ...


