Toyota Corolla (E120): Adjustment
1. Headlight aim only
- place the vehicle in the following conditions.
- The area around the headlight is not deformed.
- The vehicle is parked on a level surface.
- Tire inflation pressure is in the specified value .
- A driver is in the driver’s seat and the vehicle is in a state ready for driving (with a tank full).
- The vehicle has been bounced several times.
- check the headlight aiming.
- Prepare a thick white paper.
- Stand the paper perpendicular to the ground at the position 9.84 Ft away from the headlights.
- Ensure that the center line of the vehicle and the paper face forms a 90–degree angle as shown in the illustration.
- Draw a horizontal line (h line) on the paper, showing where the headlights should strike.
- Draw a vertical line (v line) to where the center line of the vehicle is to be.
- Draw 2 vertical lines to where the both headlights should strike (v rh and v lh lines).
- Draw a horizontal line (by connecting the both low beam center marks) to where the headlights should strike (h rh and h lh lines).
- Take appropriate measures to prevent any influence of other lights.
- Set the headlights leveling position to ”0” position and adjust the angle of the headlight axis.
Hint
: the h rh and h lh line is 0.4° Below the horizontal line (h line) of the light axis.
- Start the engine.
- Turn the headlights on.
- Check that the headlights properly strike the position shown in the illustration.
- If not, adjust the lights in the vertical direction.

Hint
:
- as shown in the illustration, adjust each aim of the rh and lh lights.

- When adjusting the headlight aim in the veatical direction: using adjusting bolt, adjust the headlight aim to be within the specified range.
Hint
: the optical aim moves upward when turning a screwdriver clockwise, while it moves downward when turning a screwdriver counterclockwise.
Other materials:
On–vehicle inspection
1. Inspect for electrical door lock operation
Hint:
w/ power window:
the door control switch is built in the master switch in the driver’s door
and also in the passenger’s
door.
W/o power window:
the door control switch is in the driver’s door and also in the passenger’s
d ...
Inspection procedure
Hint:
perform the troubleshooting of dtc p0335 first. If no trouble is
found, troubleshoot the engine mechanical
systems.
Read freeze frame data using the hand-held tester or the obd ii scan tool.
Freeze frame data records
the engine conditions when a malfunction is detected. When tr ...
Circuit description
When a misfire occurs in the engine, hydrocarbons (hc) enter the exhaust in
high concentrations. If this hc
concentration is high enough, there could be an increase in exhaust emissions
levels. High concentrations
of hc passing through the catalyst also cause to temperature of the catalyst to ...


