Infiniti M45 (Y34). Manual - part 213

 

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Infiniti M45 (Y34). Manual - part 213

 

 

REMOTE KEYLESS ENTRY SYSTEM

BL-77

C

D

E

F

G

H

J

K

L

M

A

B

BL

After indicator lamp turns on for 2 seconds then off for 2 seconds, it flashes [cycling ON (0.5 sec.)/OFF (0.5
sec.)] to indicate a malfunction code of the first digit. Then, 1.5 seconds after indicator lamp turns off, it again
flashes [cycling ON (0.5 sec.)/OFF (0.5 sec.)] to indicate a malfunction code of the second digit.
For example, the indicator lamp goes on and off for 0.5 seconds twice and after 1.5 seconds, it goes on and off
for 0.5 seconds four times. This indicates malfunction code of driver control unit communication.

Malfunction Code Table

NOTE:

For a specific local control unit (LCU), either “PAST COMM DATA” or “PAST NO RESPONSE” may be displayed instead of the
above results. This is caused by the data record, 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
reproducible incident occurred.)

Follow the steps below to erase the memory 
Perform 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.

Malfunction item

Display unit

CONSULT-II IVMS communication diag-

nosis content

Self-diagnosis 

trouble code 

No.

Malfunctioning system and 

reference

COMM DATA

One LCU is dis-
played.

POWER WINDOW C/U-DR
“COMM DATA”

24

Replace the displayed 
LCU.

DOOR MIRROR C/U-RH
“COMM DATA”

27

DOOR MIRROR C/U-LH
“COMM DATA”

37

POWER SEAT C/U-DR
“COMM DATA”

47

Multiple LCUs 
are displayed.

BCM
“COMM FAIL1”, “COMM FAIL2”

Displays in 
order of 24 

27

37

47

and cycles 

from 24.

Communication system A: 
Refer to 

BL-78, "COMMU-

NICATION SYSTEM A"

 .

NO
RESPONSE

One LCU is dis-
played.

POWER WINDOW C/U-DR
“NO RESPONSE”

25

Communication system B: 
Refer to 

BL-78, "COMMU-

NICATION SYSTEM B"

 .

DOOR MIRROR C/U-RH
“NO RESPONSE”

28

DOOR MIRROR C/U-LH
“NO RESPONSE”

38

POWER SEAT C/U-DR
“NO RESPONSE”

48

Multiple LCUs 
are displayed.

BCM/HARNESS

Displays in 
order of 
25

28

38

4

8 and cycles 
from 25.

Communication system C: 
Refer to 

BL-78, "COMMU-

NICATION SYSTEM C"

 .

SLEEP malfunc-
tion

One LCU is dis-
played.

POWER WINDOW C/U-DR “SLEEP”

No self-diagno-
sis function

Replace the displayed 
LCU.

DOOR MIRROR C/U-RH 
“SLEEP”

DOOR MIRROR C/U-LH 
“SLEEP”

POWER SEAT C/U-DR 
“SLEEP”

Multiple LCUs 
are displayed.

All the above control units are displayed.

No self-diagno-
sis function

Communication system A: 
Refer to 

BL-78, "COMMU-

NICATION SYSTEM A"

 .

BL-78

REMOTE KEYLESS ENTRY SYSTEM

Cancel of Communication Diagnosis

If one of the following conditions is satisfied, the communication diagnosis is cancelled.

Turn ignition switch OFF.

Drive the vehicle more than 7 km/h (4 MPH).

Ten minutes have passed since the diagnosis result indication start without any diagnosis cancel opera-
tion.

COMMUNICATION SYSTEM A

1. 

BCM INSPECTION

Replace the malfunctioning BCM with a known-good one, and perform the communication diagnosis.
Refer to 

BL-73, "IVMS COMMUNICATION INSPECTION"

  (with CONSULT-II) or 

BL-76, "COMMUNICATION

DIAGNOSIS"

  (without CONSULT-II).

OK or NG

OK

>> Replace BCM.

NG

>> GO TO 2.

2. 

LCU INSPECTION

1.

Replace with the previously installed BCM.

2.

Replace the LCU with a known-good one, and perform the communication diagnosis.
Refer to 

BL-73, "IVMS COMMUNICATION INSPECTION"

  (with CONSULT-II) or 

BL-76, "COMMUNICA-

TION DIAGNOSIS"

  (without CONSULT-II).

OK or NG

OK

>> Replace LCU.

NG

>> Repair or replace harness.

COMMUNICATION SYSTEM B

1. 

CONNECTOR INSPECTION

Check the terminals (at the control unit and harness) on the malfunctioning LCU for disconnection, bend, and
other malfunctions.

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminals and connectors.

2. 

LCU INSPECTION

Replace the LCU with a known-good one, and perform the communication diagnosis.
Refer to 

BL-73, "IVMS COMMUNICATION INSPECTION"

  (with CONSULT-II) or 

BL-76, "COMMUNICATION

DIAGNOSIS"

  (without CONSULT-II).

OK or NG

OK

>> Replace LCU.

NG

>> Repair communication harness between the indicated LCU and BCM.

COMMUNICATION SYSTEM C

1. 

CONNECTOR INSPECTION

Check the terminals (at the control unit and harness) on BCM and LCU for disconnection, bend and other mal-
functions.

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminals and connectors.

REMOTE KEYLESS ENTRY SYSTEM

BL-79

C

D

E

F

G

H

J

K

L

M

A

B

BL

2. 

BCM INSPECTION

Replace the BCM with a known-good one, and perform the communication diagnosis.
Refer to 

BL-73, "IVMS COMMUNICATION INSPECTION"

  (with CONSULT-II) or 

BL-76, "COMMUNICATION

DIAGNOSIS"

  (without CONSULT-II).

OK or NG

OK

>> Replace BCM

NG

>> Repair communication harness between LCU and BCM.

SWITCH MONITOR
How to Perform Switch Monitor

Description

In this mode, when BCM detects the input signal from a switch in IVMS as shown below, the detection is indi-
cated by the map lamp and step lamps with buzzer.

Switch Monitor Item

The status of the switch (except the ignition switch, interior ill lamp switch, and map lamp switch) as input to
each control unit can be monitored.

PIIA2869E

PIIA0177E

Control unit

Item

BCM

All door switch

Electronic key (lock / unlock switch and trunk switch)

Driver door control unit (LCU01)

Door lock & unlock switch (LOCK / UNLOCK)

Driver door unlock sensor

Passenger door control unit.

Passenger door unlock sensor

BL-80

REMOTE KEYLESS ENTRY SYSTEM

Cancel of Switch Monitor

If one of the following conditions is satisfied, the switch monitor is cancelled.

Turn ignition switch OFF.

Drive the vehicle more than 7 km/h (4 MPH).

Trouble Diagnosis Chart by Symptom

AIS001QB

Always check the “Work Flow” before troubleshooting. Refer to 

BL-68, "Work Flow"

 .

Before carrying out the inspection on the following table, perform the preliminary check. 
Refer to 

BL-68, "Preliminary Check"

 .

RH rear door control unit.

Rear RH door unlock sensor

LH rear door control unit.

Rear LH door unlock sensor

Control unit

Item

Symptom

malfunctioning system and reference

Reference 

page

All functions of remote keyless entry system does not 
operate.

1. Check electronic key battery. 

BL-97

2. Check electronic key.

BL-82

3. Check remote keyless entry receiver.

BL-94

4. Replace electronic key.

NOTE:
If the result of electronic key check with CONSULT-II is OK, 
electronic key is not malfunctioning. Refer to 

BL-82

 .

BL-99

5. Replace BCM.

The new ID of electronic key cannot be entered without 
CONSULT-II.

1. Check electronic key battery. 

BL-97

2. Check electronic key.

BL-82

3. Check key switch.

BL-84

4. Check door switch. 

BL-85

5. Check ACC power.

BL-83

6. Check driver side door lock and unlock switch.

BL-96

7. Replace electronic key.

NOTE:
If the result of electronic key check with CONSULT-II is OK, 
electronic key is not malfunctioning. Refer to 

BL-82

 .

BL-99

8. Replace BCM.

Door lock or unlock does not function with electronic key.
(Power door lock system is “OK”.)

1. Check electronic key.

BL-82

2. Check door switch. 

BL-85

3. Check remote keyless entry receiver.

BL-94

4. Replace electronic key.

NOTE:
If the result of electronic key check with CONSULT-II is OK, 
electronic key is not malfunctioning. Refer to 

BL-82

 .

BL-99

5. Replace BCM.

 

 

 

 

 

 

 

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