Wiper & Washer: Overview Nissan Note E12

Description

Scheme 1

LOW SPEED OPERATION

1. Ignition switch ON.
2. Front wiper switch in LO or MIST position.
3. BCM reads the combination switch position and transmits the front wiper request signal (LO) to IPDM E/R using CAN communication.
4. IPDM E/R turns ON the front wiper relay.

HIGH SPEED OPERATION

1. Ignition switch ON.
2. Front wiper switch in HI.
3. BCM reads the combination switch position and transmits the front wiper request signal (HI) to IPDM E/R using CAN communication.
4. IPDM E/R turns ON the front wiper relay and the front wiper high relay.

Scheme 2

1. Ignition switch ON.
2. Front wiper switch INT.
3. BCM reads the combination switch position. BCM calculates the delay interval based on the table below and then transmits the front wiper request signal (INT) to IPDM E/R using CAN communication.
4. IPDM E/R turns ON the front wiper relay only once.
5. BCM detects stop position of the front wiper motor based on the front wiper stop position signal received from the IPDM E/R.
6. BCM transmits the front wiper request signal (INT) again after the delay interval. Intermittent switch position Length of delay Delay interval (s) 7 Short ↑ ↓ Long 0.4 6 1 5 2 4 3 3 5 2 10 1 16

Scheme 3

1. Front wiper switch is turned OFF.
2. BCM monitors wiper switch position by combination switch reading position function.
3. BCM stops transmitting the front wiper request signal to the IPDM E/R.
4. IPDM E/R detects the front wiper auto stop signal from the position of the front wiper motor (stop position/except stop position).
5. 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.
6. IPDM E/R turns the front wiper relay OFF when the front wiper motor has reached the stop position.

MIST OPERATION

1. Ignition switch ON.
2. Front washer switch in OFF position.
3. Front wiper switch in MIST position.
4. BCM reads the combination switch position and transmits the front wiper request signal (LO) to IPDM E/R using CAN communication.
5. IPDM E/R turns ON the front wiper relay.
6. The front wiper operates once after the front washer operation.

WIPER/WASHER OPERATION

1. Ignition switch ON.
2. Front washer switch ON.
3. The front washer switch provides ground for the front and rear washer motor.
4. BCM reads the combination switch position and transmits the front wiper request signal (LO) to IPDM E/R using CAN communication.
5. BCM transmits the front wiper request signal (LO) to IPDM E/R using CAN communication.
6. IPDM E/R turns ON the front wiper relay.
7. The front wiper operates.

Note. BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 3 times after front washer switch OFF is detected.

FAIL-SAFE OPERATION

IPDM E/R performs the fail-safe function when the front wiper auto stop circuit is malfunctioning. Refer to " FAIL-SAFE " (with Intelligent Key) or " FAIL-SAFE " (without Intelligent Key).

Scheme 4

REAR WIPER BASIC OPERATION

1. BCM detects the combination switch condition by the combination switch reading function.
2. BCM controls the rear wiper to start or stop.

REAR WIPER ON OPERATION

1. BCM supplies power to the rear wiper motor according to the rear wiper ON operating condition.

REAR WIPER INT OPERATION

1. BCM supplies power to the rear wiper motor according to the INT operating condition.

Rear wiper INT operating condition

1. Ignition switch ON
2. Rear wiper switch INT

Scheme 5

1. BCM controls the rear wiper to operate once.
2. BCM detects the rear wiper motor stopping position.
3. BCM supplies power to the rear wiper motor after an intermittent from the stop of the rear wiper motor.

Scheme 6

1. BCM stops supplying power to the rear wiper motor when the rear wiper switch is turned OFF.
2. BCM reads an auto stop signal from the rear wiper motor to detect a rear wiper motor position.
3. When the rear wiper motor is at other than the stopping position, BCM continues to supply power to the rear wiper motor until it returns to the stopping position.

Note. BCM stops supplying power to the rear wiper motor when the ignition switch is turned OFF.

REAR WIPER OPERATION LINKED WITH WASHER

1. BCM supplies power to the rear wiper motor according to the washer linked operating condition of rear wiper. When the rear washer switch is turned OFF, BCM controls rear wiper to operate approximately three times.

Washer linked operating condition of rear wiper

1. Ignition switch ON
2. Rear washer switch ON (0.4 second or more)

1. Front and rear washer motor becomes grounded through the combination switch (wiper and washer switch) when the rear washer switch is turned ON.

REAR WIPER DROP WIPE OPERATION

1. BCM controls the rear wiper to operate once according to the rear wiper drop wipe operating condition.

Rear wiper drop wipe operating condition

1. Ignition switch ON
2. Rear wiper switch OFF
3. Rear washer switch OFF

1. BCM controls the rear wiper so that it operates once time approximately three seconds later after the washer interlocking operation of the rear wiper.

REAR WIPER FAIL-SAFE OPERATION

BCM performs the fail-safe function when the rear wiper auto stop circuit is malfunctioning. Refer to " FAIL-SAFE " (with Intelligent Key) or " FAIL-SAFE " (without Intelligent Key).

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

1. Front wiper (LO, HI)
2. Parking lamp
3. License plate lamp
4. Tail lamp
5. Front fog lamp
6. Headlamp (LO, HI)
7. A/C compressor (magnet clutch)
8. Cooling fan

Operation Procedure

Note. Never perform auto active test in the following conditions. Passenger door is open CONSULT is connected

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 the ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the ignition switch OFF.
4. Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test starts.
5. After a series of the following operations is repeated 3 times, auto active test is completed.

Note. When auto active test has to be cancelled halfway through test, turn the ignition switch OFF. When auto active test is not activated, door switch may be the cause. Check door switch. Refer to " COMPONENT FUNCTION CHECK ".

ECU IDENTIFICATION

The IPDM E/R part number is displayed.

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

1. Front wiper (LO, HI)
2. Parking lamp
3. License plate lamp
4. Tail lamp
5. Front fog lamp
6. Headlamp (LO, HI)
7. A/C compressor (magnet clutch)
8. Cooling fan

Note. Never perform auto active test in the following conditions. Passenger door is open CONSULT is connected

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 the ignition switch OFF.
3. Turn the ignition switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the ignition switch OFF.
4. Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test starts.
5. After a series of the following operations is repeated 3 times, auto active test is completed.

Note. When auto active test has to be cancelled halfway through test, turn the ignition switch OFF. When auto active test is not activated, door switch may be the cause. Check door switch. Refer to " COMPONENT FUNCTION CHECK ".

The IPDM E/R part number is displayed.

The front wiper does not operate under any operation conditions.