Toyota Corolla (E120) 2002–2008 Repair Manual / Theft deterrent & door lock / Transmitter battery
Toyota Corolla (E120): Transmitter battery
Replacement
1. Replace transmitter battery
Notice:
special caution should be taken for handling each component as they are precision electronic components.

- Using a screwdriver, pry out the transmitter case.
Notice
: do not forcibly pry out the case.
Hint
: tape the screwdriver tip before use.

- Remove the battery (lithium battery).
Notice
:
- do not push the terminals with your finger.
- Prying up the battery (lithium battery) to forcibly remove it will cause deformation of the terminals.
- Do not touch the battery with wet hands. Water may cause unexpected rust.
- Do not touch or move any components inside the transmitter as it may interfere with proper operation.
2. Install transmitter battery
- install a new battery (lithium battery) with the positive (+) side up, as shown in the illustration.
Notice
:
- be sure that the positive side and the negative side of the transmitter battery are matched–up correctly.
- Be careful not to bend the electrode of the transmitter battery insertion.
- Be careful that dust or oil does not adhere to the transmitter case.
- install the case securely.
Other materials:
Inspection procedure
1 Check operation(stop lamp swtich assy)
Check that the stop light comes on when the brake pedal is depressed,
and turns off when the brake
pedal is released.
2 Input signal check
See input signal check on page 05–745.
check the indicator light when the brake pedal ...
How to proceed with troubleshooting
1 Vehicle brought to workshop
2 Customer problem analysis
3 Problem symptom confirmation
4 Circuit inspection
5 Repair or replace
6 Confirmation test
7 End
Customer problem analysis check
...
Terminals of ecu
Oscilloscope wave (*1)
Hint:
terminal: od – gnd
gauge set: 5 v / div, 50 ms / div
condition: during cruise control driving o/d switch on.
...


