Nissan Teana J32. Instruction — part 316
DIAGNOSIS SYSTEM (BCM)
DLK-47
< FUNCTION DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
DATA MONITOR
ACTIVE TEST
Diagnosis mode
Function Description
DATA MONITOR
The BCM input/output signals are displayed.
ACTIVE TEST
The signals used to activate each device are forcibly supplied from BCM.
Monitor Item
Contents
PUSH SW
Indicates [ON/OFF] condition of push-button ignition switch.
UNLK SEN -DR
NOTE:
This item is displayed, but cannot be monitored.
VEH SPEED 1
Indicates [km/h] condition of vehicle speed signal from combination meter.
KEY CYL SW-TR
NOTE:
This item is displayed, but cannot be monitored.
TR CANCEL SW
NOTE:
This item is displayed, but cannot be monitored.
TR/BD OPEN SW
Indicates [ON/OFF] condition of trunk lid opener switch.
TRNK/HAT MNTR
NOTE:
This item is displayed, but cannot be monitored.
RKE-TR/BD
NOTE:
This item is displayed, but cannot be monitored.
Test item
Description
TRUNK/GLASS HATCH
This test is able to check trunk lid opener actuator open operation.
DLK-48
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
BCM
BCM : Description
INFOID:0000000003794769
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detectability. Modern vehi-
cles are equipped with many electronic control units, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN H-line, CAN L-line) allowing a high rate of information transmission with less
wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to
LAN-22, "CAN Communication Signal Chart"
BCM : DTC Logic
INFOID:0000000003794770
DTC DETECTION LOGIC
BCM : Diagnosis Procedure
INFOID:0000000003794771
1.
PERFORM SELF DIAGNOSTIC
1.
Turn ignition switch ON and wait for 3 seconds or more.
2.
Check “Self Diagnostic Result”.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to
LAN-14, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-35, "Intermittent Incident"
.
DTC
No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
U1000
CAN COMM CIRCUIT
When BCM cannot communicate CAN com-
munication signal continuously for 2 seconds
or more.
CAN communication system
U1010 CONTROL UNIT (CAN)
DLK-49
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
U1010 CONTROL UNIT (CAN)
BCM
BCM : DTC Logic
INFOID:0000000003794775
DTC DETECTION LOGIC
BCM : Diagnosis Procedure
INFOID:0000000003794776
1.
REPLACE BCM
When DTC [U1010] is detected, replace BCM.
>> Replace BCM. Refer to
BCS-78, "Removal and Installation"
BCM : Special Repair Requirement
INFOID:0000000003794777
1.
REQUIRED WORK WHEN REPLACING BCM
Initialize control unit. Refer to CONSULT-III operation instruction NATS-IVIS/NVIS.
>> Work end.
DTC
No.
Trouble diagnosis name
DTC detecting condition
Possible cause
U1010
CONTROL UNIT (CAN)
BCM detected internal CAN communication circuit malfunction.
BCM
DLK-50
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2621 INSIDE KEY ANTENNA 1
B2621 INSIDE KEY ANTENNA 1
Description
INFOID:0000000003794823
Detects whether Intelligent Key is inside the vehicle.
Installed in the instrument center.
DTC Logic
INFOID:0000000003794824
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
1.
Perform inside key antenna (“INSIDE ANT DIAGNOSIS”) on Work Support” in “INTELLIGENT KEY”.
2.
Perform “INTELLIGENT KEY” Self Diagnostic Result.
Is inside key antenna DTC detected?
YES
>> Refer to
.
NO
>> Inside key antenna (instrument center) is OK.
Diagnosis Procedure
INFOID:0000000003794825
1.
CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1
1.
Turn ignition switch OFF.
2.
Check signal between BCM harness connector and ground with oscilloscope.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 2.
2.
CHECK INSIDE KEY ANTENNA CIRCUIT
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2621
INSIDE ANTENNA 1
CIRCUIT
An excessive high or low voltage from inside anten-
na is sent to BCM.
• Inside key antenna (instrument
center)
• Between BCM and Inside key an-
tenna (instrument center)
(+)
(–)
Condition
Signal
(Reference value.)
BCM
Connector
Terminal
M122
78, 79
Ground
Place Intelligent Key inside the vehi-
cle.
Place Intelligent Key outside the ve-
hicle.
JMKIA0062GB
JMKIA0063GB
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