Electrical Load Signal

ELECTRICAL LOAD SIGNAL

Description

The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred through the CAN communication line.


Component Function Check


1. CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

1.Turn ignition switch ON.
2.Connect CONSULT and select "DATA MONITOR" mode.
3.Select "LOAD SIGNAL" and check indication as per the following conditions.





Is the inspection result normal?
YES- GO TO 2.
NO- Proceed to .

2. CHECK LIGHTING SWITCH FUNCTION

Check "LOAD SIGNAL" indication as per the following conditions.





Is the inspection result normal?
YES- GO TO 3.
NO- Proceed to .

3. CHECK HEATER FAN CONTROL SWITCH FUNCTION

Select "HEATER FAN SW" and check indication as per the following conditions.





Is the inspection result normal?
YES- INSPECTION END
NO- Proceed to .


Diagnosis Procedure


1. INSPECTION START

Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). .
Which circuit is related to the incident?
Rear window defogger-GO TO 2.
Headlamp-GO TO 3.
Heater fan-GO TO 4.

2. CHECK REAR WINDOW DEFOGGER SYSTEM

Work Flow.
- INSPECTION END

3. CHECK HEADLAMP SYSTEM

Exterior Lighting.
- INSPECTION END

4. CHECK HEATER FAN CONTROL SYSTEM

Automatic Air Conditioning.
- INSPECTION END