Question about Nissan Cars & Trucks
Low Beam Operation With the lighting switch in 2ND position, the BCM receives input requesting the headlamps to illuminate. This input is communicated to the IPDM E/R across the CAN communication lines. The CPU of the IPDM E/R controls the headlamp low relay coil. When energized, this relay directs power ? through 15A fuse (No. 36, located in the IPDM E/R) ? through IPDM E/R terminal 20 ? to headlamp RH terminal 1, and ? through 15A fuse (No. 45, located in the IPDM E/R) ? through IPDM E/R terminal 30 ? to headlamp LH terminal 1. Ground is supplied ? to headlamp RH terminal 2 ? to headlamp LH terminal 2 ? through grounds E15 and E24. With power and ground supplied, low beam headlamps illuminate.
IPDM E/R - fuse box E/R -- engine room , under hood fuse box .
System Description EKS008LH Control of the headlamp system operation is dependent upon the position of the combination switch (lighting switch). When the lighting switch is placed in the 2ND position, the BCM (body control module) receives input requesting the headlamps (and tail lamps) to illuminate. This input is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the headlamp high and headlamp low relay coils. When energized, these relays direct power to the respective headlamps, which then illuminate. OUTLINE Power is supplied at all times ? to headlamp high relay, located in the IPDM E/R, and ? to headlamp low relay, located in the IPDM E/R, and ? through 50A fusible link (letter f , located in the fuse and fusible link box) ? to BCM terminal 70. With the ignition switch in the ON or START position, power is supplied ? through 10A fuse [No. 1, located in the fuse block (J/B)] ? to BCM terminal 38. With the ignition switch in the ACC or ON position, power is supplied ? through 10A fuse [No. 6, located in the fuse block (J/B)] ? to BCM terminal 11. Ground is supplied
Posted on May 05, 2017
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Posted on Jan 02, 2017
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