Electrical Load Signal

ELECTRICAL LOAD SIGNAL





Description
The electrical load signal (Headlamp switch signal, etc.) is transferred through the CAN communication line from BCM to ECM via IPDM E/R.




Diagnosis Procedure
1.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
1. Turn ignition switch ON.
2. Connect CONSULT-III and select "DATA MONITOR" mode.
3. Select "LOAD SIGNAL" and check indication under the following conditions.






OK or NG
OK - GO TO 2.
NG - GO TO 4.
2.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Check "LOAD SIGNAL" indication under the following conditions.






OK or NG
OK - GO TO 3.
NG - GO TO 5.
3.CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION
Select "HEATER FAN SW" and check indication under the following conditions.






OK or NG
OK - INSPECTION END
NG - GO TO 6.
4.CHECK REAR WINDOW DEFOGGER SYSTEM
Initial Inspection and Diagnostic Overview.
- INSPECTION END
5.CHECK HEADLAMP SYSTEM
Exterior Lighting.
- INSPECTION END
6.CHECK HEATER FAN CONTROL SYSTEM
Automatic Air Conditioner (TYPE 1) or Automatic Air Conditioner (TYPE 2).
- INSPECTION END