Electrical Load Signal

ELECTRICAL LOAD SIGNAL

Description

The electrical load signal (Rear window defogger switch signal, headlamp switch signal, heater fan switch signal, etc.) is transferred via the CAN communication line.


Component Function Check


1. CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

1.Turn ignition switch ON.
2.Select "DATA MONITOR" mode with CONSULT.
3.Select "LOAD SIGNAL" and check indication under the following conditions.





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

2. CHECK LIGHTING SWITCH FUNCTION

Check "LOAD SIGNAL" indication under the following conditions.





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

3. CHECK HEATER FAN CONTROL SWITCH FUNCTION

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





Is the inspection result normal?
YES- INSPECTION END
NO- Go 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