Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / ABS with EBD system / Abs warning light circuit (does not light up) / Inspection procedure
Toyota Corolla (E120): Inspection procedure
Hint
: start the inspection from step 1 in case of using the hand–held tester and start from step 2 in case of not using the hand–held tester.
1 Perform active test by hand–held tester(abs warning light)
- Check that ”on” and ”off” of the abs warning light can be shown on the combination meter by the hand–held tester.


2 Inspect combination meter assy(abs warning light)
- Disconnect the connector from the skid control ecu.
- turn the ignition switch to on.
- check the abs warning light.
Ok: abs warning light goes on


3 Check harness and connector(wa circuit)
- Check for short circuit in harness and connector of the between terminal wa of skid control ecu and combination meter


Check and replace brake actuator assy
Other materials:
Seat belt warning lamp for driver’s seat does not
operate
Wiring diagram
Inspection procedure
1 Check combination meter assy
Ground terminal c9–12 on the combination meter side.
check that the warning lightlights up.
Ok: warning light lights up.
2 Inspect front seat inner belt assy lh
Disconnect the front seat inner belt ...
The ambient temperature does not display
Wiring diagram
Inspection procedure
1 Inspect outer ambient temperature sensor
Remove cooler (ambient temp. Sensor) thermistor.
measure resistance between terminals 1 and 2 of cooler
(ambient temp. Sensor) thermistor connector at each temperature.
Resistance:
at 0 c (0 f) ...
Circuit description
If the engine coolant temperature (ect) does not reach 75°c (167°f) despite
sufficient warm – up time has
elapsed.
Dtc no
Dtc detection condition
Trouble area
P0128
Condition (a), (b) and (c):
cold start
after engine is warmed up
& ...


