Rear Wiper Operation

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

When the ignition switch is in the ON or START position, and the rear wiper switch is in the ON position, the BCM detects a rear wiper ON request through the combination switch (wiper switch) reading function.

The BCM will first check the status of the glass hatch ajar switch before supplying power to the rear wiper motor. If the glass hatch ajar switch is closed (grounded) the BCM will not turn on the rear wiper motor. If the glass hatch ajar switch is open (not grounded) the BCM will control the rear wiper motor as follows.

Power is supplied

through BCM terminal 55
to rear wiper motor terminal 4.

Ground is supplied

to rear wiper motor terminal 1
through grounds D406 and D504.

With power and ground supplied, the rear wiper motor operates.

If the BCM detects the glass hatch ajar switch signal during rear wiper motor operation, the BCM will operate the rear wiper motor to the auto stop position. Once the glass hatch ajar switch signal returns to open (not grounded) for 5 or more seconds, the BCM will resume rear wiper motor operation.