Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / ABS with EBD system / Ts terminal circuit / Circuit description
Toyota Corolla (E120): Circuit description
The sensor check circuit detects abnormalities in the speed sensor signal which cannot be detected with the dtc check.
Connecting terminals ts and cg of the dlc3 starts the check.
Wiring diagram
Other materials:
Replacement
Hint: components:
1. Precaution
2. Disconnect battery negative terminal
3. Remove air bag front rh sensor
Disconnect the connector from the airbag front rh sensor.
remove the 2 bolts and airbag front rh sensor.
4. Inspect air bag front rh sensor
5. Install air bag front rh ...
Source voltage drop
The srs is equipped with a voltage–increase circuit (dc–dc converter) in the
airbag sensor assy center
in case the source voltage drops.
When the battery voltage drops, the voltage–increase circuit (dc–dc converter)
functions to increase the
voltage of the srs to normal voltage.
...
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
...