Electrical Load Signal

ELECTRICAL LOAD SIGNAL

Description

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


Component Function Check


1. CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

With CONSULT
1.Turn ignition switch ON.
2.Select "DATA MONITOR" mode of "ENGINE" using CONSULT.
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

With CONSULT-III
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

With CONSULT
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

Check the rear window defogger system. Initial Inspection and Diagnostic Overview.
- INSPECTION END

3. CHECK HEADLAMP SYSTEM

Check the headlamp system. Exterior Lighting.
- INSPECTION END

4. CHECK HEATER FAN CONTROL SYSTEM

Check the heater fan control system. Automatic Air Conditioning.
- INSPECTION END