PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
Note
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work Click here.
IGNITION SWITCH EXPRESSION
Tech Tips
The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section.
| Expression | Ignition Switch (position) | Engine Switch (condition) |
|---|---|---|
| Ignition Switch off | Off | Off |
| Ignition Switch ON | ON | On (IG) |
| Ignition Switch ACC | ACC | On (ACC) |
| Engine Start | START | Start |
PRECAUTION FOR HID HEADLIGHT SYSTEM
When the High Intensity Discharge (HID) headlight is illuminated or has recently been turned off, the light control ECU can be extremely hot, so be careful not to burn yourself.
When any of the following defects are identified on the HID headlight, replace it with new one.
Deformation, cracks, dents, chipping, etc. on the light control ECU.
Deformation, cracks or chipping on the connector or high voltage socket.
Damaged wire harness for output.
If the HID headlight illuminates normally but then flickers or shuts off, perform the inspection of HID headlight bulb Click here.
Even if the operation of the lights seems to be normal temporarily, the fail-safe function operates and illumination will be interrupted.
Since an HID headlight bulb has pressurized gas inside and can easily be broken if scratched or dropped, special care should be taken. When handling the bulb, hold the plastic or metal part and do not touch the glass part with bare hands.
When the HID headlights illuminate, a high voltage (approximately 22000 V) is applied momentarily to the bulb sockets. Never touch the bulb or socket with bare hand, and never connect a tester to the high voltage socket of an HID headlight for measurement, as this may result in a serious accident because of high voltage.
When servicing an HID headlight, first confirm that the temperature of the light control ECU is adequately low and do not allow the HID headlight to come into contact with water. Turn off the light control switch and disconnect the cable from the negative (-) battery terminal and the connector of the light control ECU in advance to avoid electric shocks.
When performing an operation related to an HID headlight, only operate it after assembly is complete. Never turn on the HID headlights without a bulb installed.
Do not turn on the HID headlights using a power source other than the vehicle battery.
The illumination color of the discharge bulb changes with time elapsed.
PRECAUTION FOR HEADLIGHT BULB REPLACEMENT
If even a thin film of oil is left on the surface of an HID headlight bulb or halogen bulb, its service life will be shortened because the light will burn at a higher temperature. When replacing a bulb, be sure to hold the flanged part of the light so that your hand will not contact the glass part of the bulb.
As the internal pressure of HID headlight bulbs and halogen bulbs is high, dropping, hitting or damaging a bulb may result in it exploding and shattering.
Always prepare a new bulb for immediate replacement. While replacing a bulb, the lens may attract dust and moisture if removed from the vehicle for a long time.
Always replace a bulb with another bulb of the same wattage.
If only replacing the bulb on one side, differences in brightness and lighting color between the right and left sides may occur.
Securely install the socket after bulb replacement. The lens may become cloudy or the light cavity may fill with water through gaps around the socket if it is not installed securely.
Do not break the HID headlight bulb when disposing of it as shards of glass may fly off and cause injuries.
PRECAUTION FOR HEADLIGHT AIMING ADJUSTMENT
When the headlights are illuminated, do not cover the headlights for 3 minutes or more.
Note
As the outer lens of the headlight is made of resin, the resulting heat created when covering the headlight for an extended period of time may deform the headlight.