Wiper & Washer: Overview Nissan Maxima A35

Scheme 1

FRONT WIPER BASIC OPERATION

1. BCM detects the combination switch condition by the combination switch reading function.
2. BCM transmits the front wiper request signal to IPDM E/R with CAN communication depending on each operating condition of the front wiper.
3. IPDM E/R turns ON/OFF the integrated front wiper relay and the front wiper high relay according to the front wiper request signal. IPDM E/R provides the power supply to operate the front wiper HI/LO operation.

FRONT WIPER LO OPERATION

1. BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the front wiper LO operating condition.

FRONT WIPER HI OPERATION

1. BCM transmits the front wiper request signal (HI) to IPDM E/R with CAN communication according to the front wiper HI operating condition.

FRONT WIPER INT OPERATION

1. 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.

Scheme 2

1. Ignition switch ON
2. 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 auto stop signal received from IPDM E/R with CAN communication. BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval.

Note. Front wiper intermittent operation can be set to the operation with vehicle speed by CONSULT-III. Refer to " WIPER : CONSULT - III FUNCTION (BCM - WIPER) ".

Front wiper intermittent operation with vehicle speed

1. 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 WIPER INTERMITTENT DIAL POSITION CHART Wiper intermittent dial position Intermittent operation interval Intermittent operation delay Interval (s) Vehicle speed Vehicle stopped or less than 5 km/h (3.1 MPH) 5 km/h (3.1MPH) or more or less than 35km/h (21.7MPH) 35 km/h (21.7 MPH) or more or less than 65km/h (40.4 MPH) (1) 65 km/h (40.4MPH) or more 1 Short ↑ ↓ Long 0.8 0.6 0.4 0.24 2 4 3 2 1.2 3 10 7.5 5 3 4 16 12 8 4.8 5 24 18 12 7.2 6 32 24 16 9.6 7 42 31.5 21 12.6 (1) When without vehicle speed setting

Scheme 3

1. BCM stops transmitting the front wiper request signal when the front wiper switch is turned OFF.
2. IPDM E/R detects the front wiper auto stop signal from the front wiper motor and detects the front wiper motor position (stop position/except stop position).
3. When the front wiper request signal is stopped, IPDM E/R turns ON the front wiper relay until the front wiper motor returns to the stop position. NOTE: BCM stops the transmitting of the front wiper request signal when the ignition switch is OFF. IPDM E/R turns the front wiper relay OFF when the ignition switch is OFF.

FRONT WIPER OPERATION LINKED WITH WASHER

1. BCM transmits the front wiper request signal (LO) to IPDM E/R with CAN communication according to the washer linked operating condition of the front wiper.
2. BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 2 times when the front washer switch OFF is detected.

FRONT WIPER FAIL-SAFE OPERATION

When the front wiper auto stop circuit is malfunctioning, IPDM E/R performs the fail-safe function. Refer to " FAIL SAFE ".

Scheme 4

Component Description

COMPONENT DESCRIPTION CHART

Description

In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.

1. Oil pressure warning lamp
2. Front wiper (LO, HI)
3. Parking lamps
4. License plate lamps
5. Tail lamps
6. Front fog lamps (if equipped)
7. Headlamps (LO, HI)
8. A/C compressor (magnet clutch)
9. Cooling fans

Operation Procedure

1. Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper operation) NOTE: When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, press the front door switch LH 10 times. Then turn the ignition switch OFF. CAUTION: Close front door RH.
4. Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test starts.
5. The oil pressure warning lamp starts blinking when the auto active test starts.
6. After a series of the following operations is repeated 3 times, auto active test is completed. NOTE: When auto active test mode has to be cancelled halfway through test, turn ignition switch OFF. CAUTION: If auto active test mode cannot be actuated, check door switch system. Refer to " «COMPONENT FUNCTION CHECK»(ref-388085-S11712813032011022800000) ". Do not start the engine.

ECU IDENTIFICATION

The IPDM E/R part number is displayed.

Fuse list

WIPER AND WASHER FUSE DESCRIPTION CHART

1. Washer switch is integrated with combination switch (wiper and washer switch).
2. Combination switch (wiper and washer switch) supplies ground and fuse # 38 from the IPEM E/R supplies power for the front washer motor to operate.

The front wiper does not operate under any operation conditions