Infiniti FX35, FX50 (S51). Manual — part 213
BCS
DIAGNOSIS SYSTEM (BCM)
BCS-33
< SYSTEM DESCRIPTION >
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WORK SUPPORT
ACTIVE TEST
RETAIND PWR
RETAIND PWR : CONSULT-III Function (BCM - RETAINED PWR)
INFOID:0000000005612691
Data monitor
SIGNAL BUFFER
UNLK SEN -DR
Indicates [ON/OFF] condition of driver door UNLOCK status.
KEY SW -SLOT
Indicates [ON/OFF] condition of key slot.
DOOR SW-DR
Indicates [ON/OFF] condition of front door switch LH.
DOOR SW-AS
Indicates [ON/OFF] condition of front door switch RH.
DOOR SW-RR
Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW-RL
Indicates [ON/OFF] condition of rear door switch LH.
DOOR SW-BK
Indicates [ON/OFF] condition of back door switch.
CDL LOCK SW
Indicates [ON/OFF] condition of lock signal from door lock/unlock switch LH and RH.
CDL UNLOCK SW
Indicates [ON/OFF] condition of unlock signal from door lock/unlock switch LH and RH.
KEY CYL LK-SW
Indicates [ON/OFF] condition of lock signal from front door key cylinder switch.
KEY CYL UN-SW
Indicates [ON/OFF] condition of unlock signal from front door key cylinder switch.
KEY CYL SW-TR
NOTE:
This is displayed even when it is not equipped.
TR/BD OPEN SW
Indicates [ON/OFF] condition of back door opener switch.
TRNK/HAT MNTR
NOTE:
This is displayed even when it is not equipped.
RKE-LOCK
Indicates [ON/OFF] condition of LOCK signal from Intelligent Key.
RKE-UNLOCK
Indicates [ON/OFF] condition of UNLOCK signal from Intelligent Key.
RKE-TR/BD
NOTE:
This is displayed even when it is not equipped.
Monitored Item
Description
Test Item
Description
SECURITY ALARM SET
This mode is able to confirm and change security alarm ON-OFF setting.
THEFT ALM TRG
The switch which triggered vehicle security alarm is recorded. This mode is able to confirm and
erase the record of vehicle security alarm. The trigger data can be erased by touching
“CLEAR” on CONSULT-III screen.
Test Item
Description
THEFT IND
This test is able to check security indicator lamp operation. The lamp will be turned on when
“ON” on CONSULT-III screen is touched.
VEHICLE SECURITY HORN
This test is able to check vehicle security horn operation. The horns will be activated for 0.5
seconds after “ON” on CONSULT-III screen is touched.
HEADLAMP(HI)
This test is able to check vehicle security lamp operation. The headlamps will be activated for
0.5 seconds after “ON” on CONSULT-III screen is touched.
FLASHER
This test is able to check vehicle security hazard lamp operation. The hazard lamps will be ac-
tivated after “LH” or “RH” on CONSULT-III screen is touched.
Monitor Item
Description
DOOR SW-DR
Indicates [ON/OFF] condition of driver side door switch.
DOOR SW-AS
Indicates [ON/OFF] condition of passenger side door switch.
BCS-34
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
SIGNAL BUFFER : CONSULT-III Function (BCM - SIGNAL BUFFER)
INFOID:0000000005249325
DATA MONITOR
ACTIVE TEST
Monitor item [UNIT]
Description
PUSH SW
[Off/On]
Displays the status of the push-button ignition switch (push switch) judged by BCM.
Test item
Opera-
tion
Description
OIL PRESSURE SW
Off
OFF
On
BCM transmits the oil pressure switch signal to the unified meter and A/C amp. via CAN com-
munication, which illuminates the oil pressure warning lamp in the combination meter.
BCS
U1000 CAN COMM
BCS-35
< DTC/CIRCUIT DIAGNOSIS >
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DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM
Description
INFOID:0000000005249326
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 detection ability. Modern
vehicle is equipped with many electronic control unit, 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-30, "CAN Communication Signal Chart"
DTC Logic
INFOID:0000000005249327
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000005249328
1.
PERFORM SELF DIAGNOSTIC
1.
Turn ignition switch ON and wait for 2 seconds or more.
2.
Check “Self Diagnostic Result”.
Is DTC “U1000” displayed?
YES
>> Refer to
LAN-20, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-36, "Intermittent Incident"
.
DTC
CONSULT-III display
description
DTC Detection Condition
Possible cause
U1000
CAN COMM
When BCM cannot communicate CAN com-
munication signal continuously for 2 seconds
or more.
CAN communication system
BCS-36
< DTC/CIRCUIT DIAGNOSIS >
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000005249329
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000005249330
1.
REPLACE BCM
When DTC “U1010” is detected, replace BCM.
>> Replace BCM. Refer to
DTC
CONSULT-III display de-
scription
DTC Detection Condition
Possible cause
U1010
CONTROL UNIT(CAN)
BCM detected internal CAN communication circuit malfunction.
BCM
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