Altima, Murano & 350Z

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 Nissan Xterra, 2003 Nissan Sentra, 2003 Nissan Pathfinder, 2003 Nissan Murano, and 2003 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

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).

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

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

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