Toyota Corolla (E120) 2002–2008 Repair Manual / Steering column / Steering system / On–vehicle inspection
Toyota Corolla (E120): On–vehicle inspection
1. Check steering wheel freeplay
- Stop the vehicle and face the tires straight ahead.
- rock the steering wheel gently up and down by your
hand, check the steering wheel freeplay.
Maximum freeplay: 30 mm (1.18 In.)
Other materials:
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.
...
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 ...
How to proceed with troubleshooting
1 Vehicle brought to workshop
2 Customer problem analysis
3 Check and clear dtc
4 Problem symptom confirmation
5 Symptom simulation
6 Dtc check
7 Dtc chart
8 Problem symptoms table
9 Circuit inspection
10 Identification of problem
11 Parts inspection
12 Repair
1 ...