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:
Manual air conditioning system
Air conditioning controls
The display and button positions will differ depending on the type of
the system.
Fan speed control switch
Temperature control switch
"MAX A/C" switch
"A/C" switch
Outside air mode switch
Recirculated air mode switch
Airflow mode control switch
Rear window defogge ...
Terminals of ecu
1. Inspect integration relay
Disconnect the connector from the integration relay.
check the continuity between each terminal of the disconnected connector
and the body ground, as
shown in the illustration and table.
Standard:
If the result is not as specified, the vehicle’s ...
Circuit description
The rotary solenoid type idle air control (iac) valve is located
under the throttle body and intake air bypassing the throttle
valve flows into the iac valve through the passage.
In this way the intake air volume bypassing the throttle valve is
regulated, controls the engine speed.
The ...


