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
.
NO
RESPONSE
One LCU is dis-
played.
POWER WINDOW C/U-DR
“NO RESPONSE”
25
Communication system B:
Refer to
.
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
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
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"
(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"
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"
(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
(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
●
Before carrying out the inspection on the following table, perform the preliminary check.
Refer to
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.
2. Check electronic key.
3. Check remote keyless entry receiver.
4. Replace electronic key.
NOTE:
If the result of electronic key check with CONSULT-II is OK,
electronic key is not malfunctioning. Refer to
5. Replace BCM.
–
The new ID of electronic key cannot be entered without
CONSULT-II.
1. Check electronic key battery.
2. Check electronic key.
3. Check key switch.
4. Check door switch.
5. Check ACC power.
6. Check driver side door lock and unlock switch.
7. Replace electronic key.
NOTE:
If the result of electronic key check with CONSULT-II is OK,
electronic key is not malfunctioning. Refer to
8. Replace BCM.
–
Door lock or unlock does not function with electronic key.
(Power door lock system is “OK”.)
1. Check electronic key.
2. Check door switch.
3. Check remote keyless entry receiver.
4. Replace electronic key.
NOTE:
If the result of electronic key check with CONSULT-II is OK,
electronic key is not malfunctioning. Refer to
5. Replace BCM.
–
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