Altima, Murano & 350Z

Electrical load signal (headlights or rear window defogger on) is transferred through CAN communication line from Body Control Module (BCM) to ECM via Intelligent Power Distribution Module (IPDM).

1. Turn ignition on. Using CONSULT-II in DATA MONITOR mode, observe LOAD SIGNAL parameter under following conditions. See CHECKING REAR WINDOW DEFOGGER LOAD SIGNAL (ALTIMA, MURANO & 350Z)  table. If LOAD SIGNAL parameter displays as specified, go to next step. If parameter is not as specified, go to step  3.
   CHECKING REAR WINDOW DEFOGGER LOAD SIGNAL (ALTIMA, MURANO & 350Z)
   
   

   Condition	Load Signal
   Rear Window Defogger Switch ON	ON
   Rear Window Defogger Switch OFF	OFF

2. Turn ignition on. Using CONSULT-II in DATA MONITOR mode, observe LOAD SIGNAL parameter under following conditions. See CHECKING LIGHTING SWITCH LOAD SIGNAL (ALTIMA, MURANO & 350Z)  table. If LOAD SIGNAL parameter displays as specified, go to next step. If parameter is not as specified, go to step  4.
   CHECKING LIGHTING SWITCH LOAD SIGNAL (ALTIMA, MURANO & 350Z)
   
   

   Condition	Load Signal
   Lighting Switch ON At Second Position	ON
   Lighting Switch OFF	OFF

3. Check operation of rear window defogger. See appropriate REAR WINDOW DEFOGGERS article in ACCESSORIES & EQUIPMENT.
4. Check operation of headlamp system.