Electrical Load Signal

ELECTRICAL LOAD SIGNAL

Description

The electrical load signal (Rear window defogger switch signal, headlamp switch signal, blower 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- Proceed to .

2. CHECK LIGHTING SWITCH FUNCTION

Check "LOAD SIGNAL" indication under the following conditions.





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

3. CHECK BLOWER FAN CONTROL SWITCH FUNCTION

Select "HEATER FAN SW" and check indication under 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 blower 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

Initial Inspection and Diagnostic Overview.
- INSPECTION END

3. CHECK HEADLAMP SYSTEM

Exterior Lighting.
- INSPECTION END

4. CHECK BLOWER FAN CONTROL SYSTEM

Automatic Air Conditioning.
- INSPECTION END