Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / ABS with EBD system / Brake warning light circuit / Circuit description
Toyota Corolla (E120): Circuit description
If the ecu detects trouble, it lights the brake warning light at the same time of prohibiting abs control. At this time, the ecu records a dtc in memory.
Connect terminals tc and cg of the dlc3 to make the brake warning light blink and output the dtc.
Wiring diagram

Other materials:
Replacement
Hint:
installation is according to the reverse order of the removal.
1. Remove rear door weatherstrip rh
2. Remove rear door weatherstrip lh
3. Remove rear seat cushion assy (, 72–8)
4. Remove rear seat back assy (fixed type rear seat)
5. Remove separate type rear seat back assy (separate ...
Hydraulic test
1. Perform hydraulic test
Measure the line pressure.
Notice:
Do the test at normal operation atf temperature 50 to 80 °c (122 to
176 °f).
The line pressure test should always be carried out in pairs. One
technician should observe
the conditions of wheels or wheel stopper outsi ...
Inspection procedure
1 Check side squib(rh) circuit(airbag sensor assy center – front
seat airbag assy rh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the front seat airbag assy ...


