Toyota Corolla (E120): Adjustment
1. Put vehicle these conditions
- tire inflation pressure is the specified value .
- start the engine.
2. Adjust fog light aim

- The fog light aim can be adjusting by moving the aiming screw in the vertical direction.
Hint
: the optical aim moves upward when turning a screwdriver clockwise, while it moves downward when turning a screwdriver counterclockwise.
3. Check fog light aim
Other materials:
Fail–safe chart
If any of the following codes is recorded, the ecm enters the fail–safe mode.
Check for intermittent problems
Hand–held tester only:
by putting the vehicle’s ecm in the check mode, the 1 trip detection logic is
possible instead of the
2 trip detection logic, and the sensitivity to de ...
On–vehicle inspection
1. Inspection throttle body idle speed control valve assy
Notice:
it is impossible to check the resister value and the operation
of isc valve by itself, because the isc valve
has an ic circuit inside it, which transforms the duty
signal from the ecm to the derive signal.
After check ...
Light control switch circuit
Wiring diagram
Inspection procedure
1 Check headlamp dimmer switch assy (light control switch)
2 Check wire harness (tvip ecu light control switch)
Disconnect the tvip ecu and light control switch connectors.
check the continuity between the terminals of the tvip
e ...


