Headlamps Do Not Turn OFF
- CHECK HEADLAMP TURN OFF
Make sure that lighting switch is OFF. And make sure that headlamp turns off when ignition switch is turned OFF.
OK or NG
OK: GO TO 3.
NG: GO TO 2.
- CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-III. With "HEAD LAMP" data monitor, make sure "HEAD LAMP SW 1" and "HEAD LAMP SW 2" turns ON-OFF linked with operation of lighting switch.
When lighting switch is in OFF position
: HEAD LAMP SW 1 OFF
: HEAD LAMP SW 2 OFF
OK or NG
OK: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".
NG: Check lighting switch. Refer to "COMBINATION SWITCH INSPECTION ".
- CHECKING CAN COMMUNICATIONS BETWEEN BCM AND IPDM E/R
Select "BCM" on CONSULT-III and perform self-diagnosis for BCM.
Display of self-diagnosis results
NO DTC: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".
CAN COMM CIRCUIT: Refer to "CAN COMMUNICATION INSPECTION USING CONSULT-III (SELF-DIAGNOSIS) ".
- Installation or removal of the connector must be done with the lighting switch OFF.
- When the lamp is illuminated (when the lighting switch is ON), do not touch the harness, HID control unit, inside of the lamp, or the lamp metal parts.
- To check illumination, temporarily install lamp in the vehicle. Be sure to connect power at the vehicle-side connector.
- If the error can be traced directly to the electrical system, first check for items such as blown fuses and fusible links, broken wires or loose connectors, pulled-out terminals, and improper connections.
- Do not work with wet hands.
- Using a tester for HID control unit circuit trouble diagnosis is prohibited.
- Disassembling the HID control unit or harnesses (bulb socket harness, ballast harness) is prohibited.
- Immediately after illumination, the light intensity and color will fluctuate, but there is nothing wrong.
- When the bulb has reached the end of its lifetime, the brightness may drop significantly, it may flash repeatedly, or the light may turn a reddish color.