Front Wiper Int Operation

• BCM transmits the front wiper request signal (INT) to IPDM E/R with CAN communication depending on the front wiper INT operating condition and intermittent operation delay interval according to the wiper intermittent dial position.

Front wiper INT operating condition

• Ignition switch ON
• Front wiper switch INT

• IPDM E/R turns ON the integrated front wiper relay so that the front wiper is operated only once according to the front wiper request signal (INT).
• BCM detects stop position/except stop position of the front wiper motor according to the front wiper stop position signal received from IPDM E/R with CAN communication.
• BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval.
  Fig 1: Front Wiper Request (INT) And Front Wiper Stop Position Signal Timing Pattern

  Courtesy of NISSAN NORTH AMERICA, INC.

Front wiper intermittent operation with vehicle speed

• BCM calculates the intermittent operation delay interval from the following:
  • Vehicle speed signal (received from the combination meter with CAN communication)
  • Wiper intermittent dial position