System Description: Notes

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

All front wiper relays (HI, LO) are included in IPDM E/R.
Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input terminals. Terminal combination status is read by BCM when switch is turned ON.
BCM controls front wiper LO, HI, and INT (intermittent) operation.
IPDM E/R operates wiper motor according to CAN communication signals from BCM.

Power is supplied at all times

to ignition relay [located in IPDM E/R (intelligent power distribution module engine room)]
through 50 A fusible link (letter F, located in fusible link box)
to BCM (body control module) terminal 55
through 10 A fuse [No. 18 located in fuse block (J/B)]
to BCM (body control module) terminal 42
through 30 A fuse [No. 73 located in IPDM E/R (intelligent power distribution module engine room)]
to front wiper relay [built in IPDM E/R (intelligent power distribution module engine room)]
through 15 A fuse [No. 78 located in IPDM E/R (intelligent power distribution module engine room)]
through 10 A fuse [No. 71, located in IPDM E/R (intelligent power distribution module engine room)]
to CPU (central processing unit) in IPDM E/R (intelligent power distribution module engine room).

When the ignition switch ON or START position, power is supplied

through 10 A fuse [No. 1 located in fuse block (J/B)]
to BCM (body control module) terminal 38
through 10 A fuse [No. 84 located in IPDM E/R (intelligent power distribution module engine room)]
through IPDM E/R (intelligent power distribution module engine room) terminal 44
to combination switch terminal 14.

Ground is supplied

to BCM (body control module) terminals 49 and 52
through grounds M14 and M78
to IPDM E/R (intelligent power distribution module engine room) terminals 38 and 60
through grounds E13, E26 and E28
to combination switch (wiper switch) terminal 12
through grounds M14 and M78.