Toyota Corolla (E120): Ignition
Service data
Torque specification
Other materials:
Circuit description
The variable valve timing (vvt) system includes the ecm, the oil control
valve (ocv) and the vvt controller.
The ecm sends a target ”duty–cycle” control signal to the ocv. This control
signal, applied to the ocv,
regulates the oil pressure supplied to the vvt controller. Camshaft timin ...
Headlight aim (vehicles
with front side
marker lights [bulb
type] )
Vertical movement adjusting
bolts
Adjustment bolt A
Adjustment bolt B
Before checking the headlight
aim
Make sure the vehicle has a
full tank of gasoline and the
area around the headlight is
not deformed.
Park the vehicle on level
ground.
Make sure the tire inflation
pressure is at the ...
How to proceed with troubleshooting
Hint:
carry out troubleshooting in accordance with the procedures on the following
page. Here, only the basic
procedures are shown. Details are provided in the diagnostics section, showing
the most effective methods
for each circuit. Confirm the troubleshooting procedures first for the releva ...