Nissan Pathfinder (2008 year). Manual — part 78
BCS
DIAGNOSIS SYSTEM (BCM)
BCS-25
< FUNCTION DIAGNOSIS >
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BATTERY SAVER : CONSULT-III Function (BCM - BATTERY SAVER)
INFOID:0000000001712676
WORK SUPPORT
*: Initial setting
DATA MONITOR
1: With Intelligent Key
2: With remote keyless entry
ACTIVE TEST
*: Each lamp switch is in ON position.
TRUNK
TRUNK : CONSULT-III Function (BCM - TRUNK)
INFOID:0000000001712677
DATA MONITOR
Work Item
Setting Item
Setting
ROOM LAMP TIMER SET
MODE 1*
15 min.
Sets the interior room lamp battery saver timer operating
time.
MODE 2
30 min.
Monitor Item
[Unit]
Description
IGN ON SW [ON/OFF]
Ignition switch (ON) status judges from IGN signal (ignition power supply)
KEY ON SW [ON/OFF]
The switch status input from key switch
DOOR SW-DR [ON/OFF]
The switch status input from front door switch (driver side)
DOOR SW-AS [ON/OFF]
The switch status input from front door switch (passenger side)
DOOR SW-RR [ON/OFF]
The switch status input from rear door switch RH
DOOR SW- RL [ON/OFF]
The switch status input from rear door switch LH
BACK DOOR SW [ON/OFF]
The switch status input from back door switch
KEY CYL LK-SW [ON/OFF]
Lock switch status input from door key cylinder switch
KEY CYL UN-SW [ON/OFF]
Unlock switch status input from door key cylinder switch
CDL LOCK SW [ON/OFF]
Lock switch status input from door lock and unlock switch
CDL UNLOCK SW [ON/OFF]
Unlock switch status input from door lock and unlock switch
I-KEY LOCK
1
[ON/OFF]
Lock signal status received from Intelligent Key unit by CAN communication
I-KEY UNLOCK
1
[ON/OFF]
Unlock signal status received from Intelligent Key unit by CAN communication
KEYLESS LOCK
2
[ON/OFF]
Lock signal status received from remote keyless entry receiver (integrated in the
BCM)
KEYLESS UNLOCK
2
[ON/OFF]
Unlock signal status received from remote keyless entry receiver (integrated in the
BCM)
Test Item
Operation
Description
BATTERY SAVER
OFF
Cuts the interior room lamp power supply to turn interior room lamps OFF.
ON
Outputs the interior room lamp power supply to turn interior room lamps ON.*
Monitor Item
[Unit]
Contents
IGN ON SW [ON/OFF]
Indicates condition of ignition switch in ON position
I-KEY TRUNK [ON/OFF]
Indicates condition of Intelligent Key back door opening operation
TRUNK OPNR SW [ON/OFF]
Indicates condition of back door opener switch.
VEHICLE SPEED [ON/OFF]
Indicates condition of vehicle speed signal from combination meter
BCS-26
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
ACTIVE TEST
RETAINED PWR
RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)
INFOID:0000000001712678
Data monitor
SIGNAL BUFFER
SIGNAL BUFFER : CONSULT-III Function (BCM - SIGNAL BUFFER)
INFOID:0000000001712679
DATA MONITOR
ACTIVE TEST
AIR PRESSURE MONITOR
AIR PRESSURE MONITOR : Diagnosis Description
INFOID:0000000001712680
DESCRIPTION
During driving, the TPMS receives the signal transmitted from the transmitter installed in each wheel, when
the tire pressure becomes low. The control unit (BCM) of this system has pressure judgment and trouble diag-
nosis functions.
When the TPMS detects low inflation pressure or another unusual symptom, the warning lamps in the combi-
nation meter comes on.
SELF DIAGNOSTIC PROCEDURE (WITH CONSULT-III)
With CONSULT-III
• Touch “SELF-DIAG RESULTS” display to show malfunction experienced since the last erasing operation.
SELF DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-III)
Without CONSULT-III
To start the self-diagnostic results mode, ground terminal of the tire pressure warning check connector. The
malfunction location is indicated by the warning lamp flashing.
Test Item
Description
TRUNK/BACK DOOR
This test is able to check back door open operation.
Back door open when “OPEN” on CONSULT-III screen is touched.
Monitor Item
[Unit]
Description
DOOR SW-DR [ON/OFF]
Indicates condition of front door switch LH.
DOOR SW-AS [ON/OFF]
Indicates condition of front door switch RH.
Monitor Item
[Unit]
Description
OIL PRESS SW [ON/OFF]
Displays the status of oil pressure switch received from IPDM E/R via CAN communication.
Test Item
Operation
Description
OIL PRESSURE SW
OFF
OFF
ON
BCM transmits the oil pressure switch signal to the combination meter via CAN communica-
tion, which operates the oil pressure gauge in the combination meter.
BCS
DIAGNOSIS SYSTEM (BCM)
BCS-27
< FUNCTION DIAGNOSIS >
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NOTE:
When the low tire warning lamp flashes 5 Hz and continues repeating it, the system is normal.
SEIA0745E
Flickering
pattern
Items
Diagnostic items detected when···
Check item
15
Tire pressure value (Front LH)
Front LH tire pressure drops to 181 kPa (1.8 kg/cm, 25.25 psi) or less.
–
16
Tire pressure value (Front RH)
Front RH tire pressure drops to 181 kPa (1.8 kg/cm, 25.25 psi) or less.
17
Tire pressure value (Rear RH)
Rear RH tire pressure drops to 181 kPa (1.8 kg/cm, 25.25 psi) or less.
18
Tire pressure value (Rear LH)
Rear LH tire pressure drops to 181 kPa (1.8 kg/cm, 25.25 psi) or less.
21
Transmitter no data (Front LH)
Data from front LH transmitter can not be received.
22
Transmitter no data (Front RH)
Data from front RH transmitter can not be received.
23
Transmitter no data (Rear RH)
Data from Rear RH transmitter can not be received.
24
Transmitter no data (Rear LH)
Data from Rear LH transmitter can not be received.
31
Transmitter checksum error
(Front LH)
Checksum data from front LH transmitter is malfunctioning.
32
Transmitter checksum error
(Front RH)
Checksum data from front RH transmitter is malfunctioning.
33
Transmitter checksum error
(Rear RH)
Checksum data from rear RH transmitter is malfunctioning.
34
Transmitter checksum error
(Rear LH)
Checksum data from rear RH transmitter is malfunctioning.
35
Transmitter pressure data error
(Front LH)
Air pressure data from front LH transmitter is malfunction.
36
Transmitter pressure data error
(Front RH)
Air pressure data from front RH transmitter is malfunction.
37
Transmitter pressure data error
(Rear RH)
Air pressure data from rear RH transmitter is malfunction.
38
Transmitter pressure data error
(Rear LH)
Air pressure data from rear LH transmitter is malfunction.
41
Transmitter function code error
(Front LH)
Function code data from front LH transmitter is malfunction.
42
Transmitter function code error
(Front RH)
Function code data from front RH transmitter is malfunction.
43
Transmitter function code error
(Rear RH)
Function code data from rear RH transmitter is malfunction.
44
Transmitter function code error
(Rear LH)
Function code data from rear LH transmitter is malfunction.
BCS-28
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
ERASE SELF-DIAGNOSIS
With CONSULT-III
1.
Perform applicable inspection of malfunctioning item and then repair or replace.
2.
Turn ignition switch “ON” and select “SELF-DIAG RESULTS” mode for “AIR PRESSURE MONITOR” with
CONSULTIII.
3.
Touch “ERASE” on CONSULT-III screen to erase memory.
Without CONSULT-III
• In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is
stored into the control unit as necessary during use by the user. This memory is not erased no matter how
many times the ignition switch is turned “ON” and“OFF”.
• However, this information is erased by turning ignition switch “OFF” after performing self-diagnostic or by
erasing the memory using the CONSULT-III.
AIR PRESSURE MONITOR : CONSULT-III Function
INFOID:0000000001712681
WORK SUPPORT MODE
ID Read
The registered ID number is displayed.
ID Regist
WT-6, "ID Registration Procedure"
.
SELF-DIAG RESULTS MODE
Operation Procedure
DATA MONITOR MODE
Screen of data monitor mode is displayed. Refer to
WT-11, "CONSULT-III Function (BCM)"
.
NOTE:
When malfunction is detected, CONSULT-III perform REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.
ACTIVE TEST MODE
NOTE:
Before performing the self-diagnosis, be sure to register the ID, or else the actual malfunction may be different
from that displayed on CONSULT-III.
TEST ITEM LIST
45
Transmitter battery voltage low
(Front LH)
Battery voltage of front LH transmitter drops.
46
Transmitter battery voltage low
(Front RH)
Battery voltage of front RH transmitter drops.
47
Transmitter battery voltage low
(Rear RH)
Battery voltage of rear RH transmitter drops.
48
Transmitter battery voltage low
(Rear LH)
Battery voltage of rear LH transmitter drops.
52
Vehicle speed signal error
Speed signal is not detected.
No flicker-
ing
Tire pressure warning check
switch
Tire pressure warning switch circuit is open.
–
Flickering
pattern
Items
Diagnostic items detected when···
Check item
Test item
Content
WARNING LAMP
This test is able to check to make sure that the warning lamp turns on.
ID REGIST WARNING
This test is able to check to make sure that the buzzer sounds or the warning lamp turns on.
BCS
DIAGNOSIS SYSTEM (BCM)
BCS-29
< FUNCTION DIAGNOSIS >
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THEFT ALM
THEFT ALM : CONSULT-III Function (BCM - THEFT ALM)
INFOID:0000000001712682
WORK SUPPORT
FLASHER
This test is able to check to make sure that each turn signal lamp turns on.
HORN
This test is able to check to make sure that the horn sounds.
Test item
Content
Work Item
Description
SECURITY ALARM SET
Vehicle security function mode can be changed in this mode.
• ON: Vehicle security function is ON.
• OFF: Vehicle security function is OFF.
BCS-30
< COMPONENT DIAGNOSIS >
U1000 CAN COMM CIRCUIT
COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
Description
INFOID:0000000001712685
LAN-57, "CAN Communication Signal Chart"
DTC Logic
INFOID:0000000001712686
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000001712687
1.
PERFORM SELF DIAGNOSTIC
1.
Turn ignition switch ON and wait for 2 seconds or more.
2.
Check “Self Diagnostic Result” of BCM.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to
LAN-14, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-51, "Intermittent Incident"
.
DTC
CONSULT-III display
description
DTC Detection Condition
Possible cause
U1000
CAN COMM CIRCUIT
When BCM cannot communicate CAN com-
munication signal continuously for 2 sec-
onds or more.
Any item (or items) of the following listed below is
malfunctioning in CAN communication system.
• Transmission
• Receiving (ECM)
• Receiving (METER/M&A)
• Receiving (TCM)
• Receiving (MULTI AV)
• Receiving (IPDM E/R)
• Receiving (I-KEY)
BCS
U1010 CONTROL UNIT (CAN)
BCS-31
< COMPONENT DIAGNOSIS >
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U1010 CONTROL UNIT (CAN)
DTC Logic
INFOID:0000000001712688
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000001712689
1.
REPLACE BCM
When “DTC:U1010” is detected, replace BCM.
>> Replace BCM. Refer to
BCS-54, "Removal and Installation"
Special Repair Requirement
INFOID:0000000001712690
1.
ADDITIONAL SERVICE WHEN REPLACING BCM
>> Refer to
BCS-3, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair
DTC
CONSULT-III display de-
scription
DTC Detection Condition
Possible cause
U1010
CONTROL UNIT (CAN)
When detecting error during the initial diagnosis of CAN control-
ler of BCM.
BCM
BCS-32
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis Procedure
INFOID:0000000001712691
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM.
3.
Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> INSPECTION END
NO
>> Repair or replace harness.
Terminal No.
Signal name
Fuses and fusible link No.
57
Battery power supply
18 (10A)
70
G (50A)
11
Ignition ACC or ON
4 (10A)
38
Ignition ON or START
1 (10A)
Connector
Terminals
Power
source
Condition
Voltage (V) (Ap-
prox.)
(+)
(-)
M18
11
Ground
ACC
power
supply
Ignition
switch
ACC or
ON
Battery voltage
38
Ground
Ignition
power
supply
Ignition
switch ON
or START
Battery voltage
M20
57
Ground
Battery
power
supply
Ignition
switch
OFF
Battery voltage
70
Ground
Battery
power
supply
Ignition
switch
OFF
Battery voltage
LIIA2415E
BCM
Ground
Continuity
Connector
Terminal
M20
67
Yes
LIIA0915E
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