Reverse Interlock Door Mirror System: Overview Infiniti M45 II

Scheme 148

System Description

1. When switching the door mirror remote control switch position (LH/RH), the system moves driver or passenger door mirror face downward, in relation to the A/T selector lever being shifted to Reverse Position.
2. The mirror position with the reverse gear engaged can be adjusted and the adjusted mirror position can be stored in memory (2 positions).
3. With reverse gear-linked operation signal, the driver side door mirror control unit (LCU 03) and passenger side door mirror control unit (LCU 04) installed on the door panel drives and controls the motors (UP/ DOWN, LH/RH).
4. Using the self-diagnostic function and CONSULT-II, system diagnosis can be performed.

Operation Conditions

If all of the following conditions are satisfied, starts operating after approximately 0.5 seconds.

1. Ignition switch is in ON position.
2. Set the door mirror remote control switch to the right position, or left position.
3. A/T selector lever is in R position.

Note. If the conditions for reverse gear-linked operation are satisfied during manual operation, the manual operation is interrupted and switched to the reverse gear-linked operation.

Scheme 149

End of Operation

If the following conditions is satisfied, the reverse gear-linked operation is stopped.

1. When the set angle is reached.
2. When no operation signal or no operation end signal can be received for approximately 2 seconds or more after BCM actually outputs the reverse gear- linked operation signal.
3. After receiving the operation signal from the door mirror control unit, when BCM has stayed in the status for 60 seconds.

Return Operation

If one of the following conditions is satisfied, the mirror face returns upward.

1. When the ignition switch is turned OFF.
2. When the A/T selector lever is shifted to any position except R position.
3. When the door mirror remote control switch is in the neutral position.

Note. After the above operation, if no operation conditions previously mentioned are satisfied, shifting the A/T selector lever to R position will not move the mirror face downward.

End of Return Operation

1. Mirror face returns to the original position.
2. When no operation signal or no operation end signal can be received for approximately 2 seconds or more after BCM actually outputs the reverse gear- linked operation signal.
3. After receiving the operation signal from the door mirror control unit, when BCM has stayed in the status for 60 seconds.

Memory Operation Conditions

The seat and steering wheel positions are in accordance with memory 1 or memory 2 in the automatic drive position control. Refer to "AUTOMATIC DRIVE POSITIONER ".

Memory Operation Procedure

1. Turn ignition switch ON.
2. Shift the A/T selector lever to R position.
3. Switch the door mirror remote control switch to right or left, and set the mirror face to the desired angle.
4. Press the setting button, and within 5 seconds, press the memory switch which stores the current seat and steering wheel positions for 0.5 seconds or more.
5. If the memory switch with certain positions stored is used, it turns off for 0.5 seconds after the operation, and after that it illuminates continuously (for Pyrex. 5 seconds).
6. If a memory switch with no positions stored is used, it illuminates (for Pyrex. 5 seconds) after the memory switch operation.

MIRROR CONTROL SWITCH TO OPERATION

If the changeover switch with RH positions, ground is supplied

1. to BCM terminal No.21
2. through the door mirror remote control switch terminal No.5
3. through door mirror remote control switch terminal No.7
4. through grounds M25 and M115.

BCM recognizes that changeover switch is RH positions.

If the changeover switch with LH positions, ground is supplied

1. to BCM terminal No.24
2. through the door mirror remote control switch terminal No.6
3. through door mirror remote control switch terminal No.7
4. through grounds M25 and M115.

BCM recognizes that changeover switch is LH positions.

When mirror switch is selected to right, ground is supplied

1. through BCM terminal No.29
2. to the door mirror remote control switch terminal No. 1
3. through door mirror remote control switch terminal No.7
4. through grounds M25 and M115.

BCM recognizes that mirror switch is selected to right.

When mirror switch is selected to left, ground is supplied

1. to BCM terminal No.25
2. through the door mirror remote control switch terminal No.2
3. through door mirror remote control switch terminal No.7
4. through grounds M25 and M115.

BCM recognizes that mirror switch is selected to left.

When mirror switch is selected to up, ground is supplied

1. to BCM terminal No.32
2. through the door mirror remote control switch terminal No.3
3. through door mirror remote control switch terminal No.7
4. through grounds M25 and M115.

BCM recognizes that mirror switch is selected to up.

When mirror switch is selected to down, ground is supplied

1. to BCM terminal No.34
2. through the door mirror remote control switch terminal No.4
3. through door mirror remote control switch terminal No.7
4. through grounds M25 and M115.

BCM recognizes that mirror switch is selected to down.

BCM is connected to driver side door mirror control unit (LCU03) and passenger side door mirror control unit (LCU04) as DATA LINE A-2 and DATA LINE A-3.

Then signal inputs to driver side door mirror control unit and passenger side door mirror control unit terminal No.7 from BCM terminal No.61 and No.67 by DATA LINE A-2 and DATA LINE A-3.

If the changeover switch with LH positions, signal is transmitted to LCU03.

If the changeover switch with RH positions, signal is transmitted to LCU04.

MEMORY MIRROR OPERATION

BCM transmits the memory switch (1 or 2) ON signal to the door mirror control unit.

BCM is connected to driver side door mirror control unit (LCU03) and passenger side door mirror control unit (LCU04) as DATA LINE A-2 and DATA LINE A-3.

Then signal input to driver side door mirror control unit and passenger side door mirror control unit terminal No.7 from BCM terminal No.61 and No.67 by DATA LINE A-2 and DATA LINE A-3.

When door mirror control unit receives the signal of memory switch from BCM, control unit operations the door mirror according to memory data.

Power is supplied

1. through door mirror control unit terminal No. 1
2. to the door mirror terminal No. 16, and then

Signal is transmitted (up and down)

1. through door mirror terminal No. 14
2. to door mirror control unit terminal No. 5.

LCU recognizes an upper and down position according to the voltage. and also signal is transmitted (left and right)

1. through door mirror terminal No. 12
2. to door mirror control unit terminal No. 6
3. a left and right position is recognized according to the voltage.

DOOR MIRROR MOTOR TO OPERATION

When mirror motor up signal is transmitted from BCM to door mirror control unit, power is supplied

1. through door mirror control unit terminal No.3
2. to door mirror terminal No.8.

Then ground is supplied

1. to door mirror terminal No.11
2. through door mirror control unit terminal No.9
3. through door mirror control unit terminal No.10
4. through body ground M24 and M114.

With power and ground supplied, mirror motor is operated up side.

When mirror motor down signal is transmitted from BCM to door mirror control unit, power is supplied

1. through door mirror control unit terminal No.9
2. to door mirror terminal No.11.

Then ground is supplied

1. to door mirror terminal No.8
2. through door mirror control unit terminal No.3
3. through door mirror control unit terminal No.10
4. through body ground M24 and M114.

With power and ground supplied, mirror motor is operated down side.

When mirror motor left signal is transmitted from BCM to door mirror control unit, power is supplied

1. through door mirror control unit terminal No.4
2. to the door mirror terminal No.9.

Then ground is supplied

1. to door mirror terminal No.11
2. through door mirror control unit terminal No.9
3. through door mirror control unit terminal No.10
4. through body ground M24 and M114.

With power and ground supplied, mirror motor is operated left side.

When mirror motor right signal is transmitted from BCM to door mirror control unit, power is supplied

1. through door mirror control unit terminal No.9
2. to the door mirror terminal No. 11.

Then ground is supplied

1. to door mirror terminal No.9
2. through door mirror control unit terminal No.4
3. through door mirror control unit terminal No.10
4. through body ground M24 and M114.

With power and ground supplied, mirror motor is operated right side.

Scheme 150

Scheme 151

Operation Procedure

1. Touch "IVMS-COMM CHECK" on "SELECT TEST ITEM".
2. Touch "IVMS-COMM DIAGNOSIS" on "SELECT DIAG ITEM" screen.
3. Touch "START" on "IVMS-COMM DIAGNOSIS" screen to start the diagnosis.
4. After the diagnosis is completed, the malfunctioning system is displayed.
5. When the malfunctioning items are displayed, touch "PRINT" to record.
6. Touch "ERASE".
7. Carry out the communication inspection again to check that any malfunctioning item is displayed.
8. Check the displayed items.

Wake-Up Diagnosis

The wake-up diagnosis is carried out when BCM detects the wake-up signal from each local unit (LCU). When the switch shown on the screen is operated as instructed, each local control unit (LCU) outputs the wake-up signal. If BCM cannot detect a wake-up signal, it is judged malfunctioning. The malfunctioning local control unit (LCU) is displayed on the screen.

1. Touch "IVMS-COMM CHECK" on "SELECT TEST ITEM" screen.
2. Touch "WAKE-UP DIAGNOSIS" on "SELECT DIAG ITEM" screen.
3. Touch "START" on "WAKE-UP DIAGNOSIS" screen to start the diagnosis.
4. Touch "NEXT" to select the local control unit (LCU) to be diagnosed.
5. Check that any malfunction is displayed. If necessary, touch "PRINT" to record.
6. Carry out the inspection to the malfunctioning item.

Scheme 152

Note. For a specific local control unit (LCU), either "PAST COMM DATA" or "PAST NO RESPONSE" may be displayed instead of the above results. The data record, causes this, so erase the records. (The display only shows the incident records, they are not malfunctions caused during the diagnosis. One possible cause is that an intermittent incident occurred.) Follow the steps below to erase the memory. Carry out either disconnect BCM battery power supply or erase memory with CONSULT-II. With the battery connected, if the local control unit (LCU) connector is disconnected and left for approximately 1 minute, the BCM stores "NO RESPONSE" record.

1. Touch "AUTO DRIVE POSITIONER" on "SELECT TEST ITEM" screen.
2. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.
3. Touch "START" on "SELF-DIAG RESULTS" screen.
4. The seat and steering wheel automatically move, and the self-diagnosis for the seat, steering wheel and door mirror start (door mirror does not operate).
5. Within 15 seconds after the self-diagnosis for the seat, steering wheel and door mirror are completed, drive the vehicle at a speed of 7 km/h(4 MPH) or higher for the vehicle speed sensor self-diagnosis.
6. After the diagnosis is completed, the malfunctioning system is displayed.
7. When the malfunctioning items are displayed, touch "COPY" to record.
8. Touch "ERASE".
9. Perform self-diagnosis results again to check that any malfunctioning item is displayed.
10. Check the displayed items.

Scheme 153

Scheme 154

Scheme 155

Scheme 156

1. BCM INSPECTION Replace BCM with a known-good one, and carry out the communication diagnosis. Refer to " «IVMS COMMUNICATION DIAGNOSIS»(ref-181226-S13852904222005080200000) ". OK or NG? OK >> Replace BCM NG >> GO TO 2.
2. LCU INSPECTION Replace with the previously installed BCM. Replace LCU with a known-good one, and carry out the communication diagnosis. Refer to " «IVMS COMMUNICATION DIAGNOSIS»(ref-181226-S13852904222005080200000) ". OK or NG? OK >> Replace LCU NG >> Perform the following. Repair or replace communication harness between LCU and BCM. Replace with the previously installed LCU.