Nissan Pathfinder (2012 year). Instruction — part 78
BCS-4
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
CONFIGURATION (BCM) : Description
INFOID:0000000007354900
Vehicle specification needs to be written with CONSULT because it is not written after replacing BCM.
Configuration has three functions as follows:
CAUTION:
• When replacing BCM, you must perform “Select Saved Data List” or "After Replace ECU" with CON-
SULT.
• Complete the procedure of “Select Saved Data List” or "After Replace ECU" in order.
• If you set incorrect “Select Saved Data List” or "After Replace ECU", incidents might occur.
• Configuration is different for each vehicle model. Confirm configuration of each vehicle model.
• Never perform “Select Saved Data List” or "After Replace ECU" except for new BCM.
CONFIGURATION (BCM) : Work Procedure
INFOID:0000000007354901
1.
WRITING MODE SELECTION
CONSULT
Select “Reprogramming, Configuration” of BCM.
When writing saved data>>GO TO 2.
When writing instructionly>>GO TO 3.
2.
PERFORM “SAVED DATA LIST”
CONSULT
Automatically “Operation Log Selection” window will display if “Before Replace ECU” was performed. Select
applicable file from the “Save Data List” and press “Confirm”.
>> Work End.
3.
PERFORM “AFTER REPLACE ECU” OR “MANUAL CONFIGURATION”
CONSULT
1. Select “After Replace ECU” or “Instruction Configuration”.
2. Identify the correct model and configuration list. Refer to
BCS-5, "CONFIGURATION (BCM) : Configura-
3. Confirm and/or change setting value for each item.
CAUTION:
Thoroughly read and understand the vehicle specification. ECU control may not operate normally
if the setting is not correct.
4. Select “Next”.
CAUTION:
Make sure to select “Next”, confirm each setting value and press “OK” even if the indicated con-
figuration of brand new BCM is same as the desirable configuration. If not, configuration which is
set automatically by selecting vehicle model can not be memorized.
5. When "Completed", select "End".
>> GO TO 4.
4.
OPERATION CHECK
Confirm that each function controlled by BCM operates normally.
>> Work End.
Function
Description
"Before Replace ECU"
• Reads the vehicle configuration of current BCM.
• Saves the read vehicle configuration.
"After Replace ECU"
Writes the vehicle configuration with instruction selection.
"Select Saved Data List"
Writes the vehicle configuration with saved data.
August 2012
2012 Pathfinder
BCS
INSPECTION AND ADJUSTMENT
BCS-5
< BASIC INSPECTION >
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CONFIGURATION (BCM) : Configuration List
INFOID:0000000007829993
CAUTION:
Thoroughly read and understand the vehicle specification. Incorrect settings may result in abnormal
control of ECU.
⇔
: Items which confirm vehicle specifications
MANUAL SETTING ITEM
Items
Setting value
KEYLESS ENTRY
WITH
⇔
WITHOUT
I-KEY
WITH
⇔
WITHOUT
AUTO LIGHT
WITH
⇔
WITHOUT
DTRL
WITH
⇔
WITHOUT
THEFT ALARM
WITH
⇔
WITHOUT
TIRE PRESSURE
MODE1
⇔
MODE2
⇔
MODE3
⇔
MODE4
⇔
MODE5
⇔
MODE6
⇔
MODE7
⇔
MODE8
ASSIST LAMP TYPE
MODE1
⇔
MODE2
AUTO DOOR UNLOCK TIMING
WITH I-KEY
⇔
WITHOUT I-KEY
August 2012
2012 Pathfinder
BCS-6
< SYSTEM DESCRIPTION >
BODY CONTROL SYSTEM
SYSTEM DESCRIPTION
BODY CONTROL SYSTEM
System Description
INFOID:0000000007354902
OUTLINE
• BCM (Body Control Module) controls the various electrical components. It inputs the information required to
the control from CAN communication and the signal received from each switch and sensor.
• BCM has combination switch reading function for reading the operation status of combination switches (light,
turn signal, wiper and washer) in addition to a function for controlling the operation of various electrical com-
ponents. It also has the signal transmission function as the passed point of signal and the power consump-
tion control function that reduces the power consumption with the ignition switch OFF.
• BCM is equipped with the diagnosis function that performs the diagnosis with CONSULT and various set-
tings.
BCM control function list
System
Refer to
Combination switch reading system
Signal buffer system
Power consumption control system
Auto light system
Turn signal and hazard warning lamp system
Headlamp system
Front fog lamp system (if equipped)
Daytime running light system (if equipped)
Interior room lamp control system
Step lamp system
Interior room lamp battery saver system
Front wiper and washer system
Rear wiper and washer system
Warning chime system
WCS-4, "WARNING CHIME SYSTEM : System Diagram"
Door lock system
• WITH INTELLIGENT KEY SYSTEM:
• WITHOUT INTELLIGENT KEY SYSTEM:
UNLOCK SWITCH : System Diagram"
(NATS) Nissan anti-theft system
• WITH INTELLIGENT KEY SYSTEM:
• WITHOUT INTELLIGENT KEY SYSTEM:
Vehicle security system
• WITH INTELLIGENT KEY SYSTEM:
• WITHOUT INTELLIGENT KEY SYSTEM:
Rear window defogger system
Remote keyless entry system
DLK-217, "REMOTE KEYLESS ENTRY : System Diagram"
Intelligent Key system (if equipped)
DLK-43, "CONSULT Function (INTELLIGENT KEY)"
Power window system
RAP (retained accessory power) system
BCS-26, "RETAINED PWR : CONSULT Function (BCM - RETAINED PWR)"
TPMS (tire pressure monitoring system)
August 2012
2012 Pathfinder
BCS
BODY CONTROL SYSTEM
BCS-7
< SYSTEM DESCRIPTION >
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Component Parts Location
INFOID:0000000007354903
• BCM M18, M19, M20 (view with instrument panel removed)
LKIA0564E
August 2012
2012 Pathfinder
BCS-8
< SYSTEM DESCRIPTION >
COMBINATION SWITCH READING SYSTEM
COMBINATION SWITCH READING SYSTEM
System Diagram
INFOID:0000000007354904
System Description
INFOID:0000000007354905
OUTLINE
• BCM reads the status of the combination switch (light, turn signal, wiper and washer) and recognizes the
status of each switch.
• BCM has a combination of 5 output terminals (OUTPUT 1 - 5) and 5 input terminals (INPUT 1 - 5) and reads
a maximum of 20 switch states.
COMBINATION SWITCH MATRIX
Combination switch circuit
Combination switch INPUT-OUTPUT system list
AWMIA1237GB
System
INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
OUTPUT 1
—
FR WASHER
FR WIPER LOW
TURN LH
TURN RH
OUTPUT 2
FR WIPER HI
—
FR WIPER INT
PASSING
HEADLAMP 1
OUTPUT 3
INT VOLUME 1
RR WASHER
—
HEADLAMP 2
HI BEAM
AWMIA1238GB
August 2012
2012 Pathfinder
BCS
COMBINATION SWITCH READING SYSTEM
BCS-9
< SYSTEM DESCRIPTION >
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COMBINATION SWITCH READING FUNCTION
Description
• BCM reads the status of the combination switch at 10 ms intervals normally.
NOTE:
BCM reads the status of the combination switch at 60 ms intervals when BCM is controlled at low power
consumption control mode.
• BCM operates as follows and judges the status of the combination switch.
- It operates the transistor on OUTPUT side in the following order: OUTPUT 1
→
2
→
3
→
4
→
5, and outputs
voltage waveform.
- The voltage waveform of OUTPUT corresponding to the formed circuit is input into the interface on INPUT
side if any (1 or more) switches are ON.
- It reads this change of the voltage as the status signal of the combination switch.
Operation Example
In the following operation example, the combination of the status signals of the combination switch is replaced
as follows: INPUT 1 - 5 to “1 - 5” and OUTPUT 1 - 5 to “A - E”.
Example 1: When a switch (TAIL LAMP) is turned ON
OUTPUT 4
RR WIPER INT
INT VOLUME 3
AUTO LIGHT
—
TAIL LAMP
OUTPUT 5
INT VOLUME 2
RR WIPER ON
—
FR FOG
—
System
INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
JPMIA0609GB
JMMIA0326GB
August 2012
2012 Pathfinder
BCS-10
< SYSTEM DESCRIPTION >
COMBINATION SWITCH READING SYSTEM
• The circuit between OUTPUT 4 and INPUT 5 is formed when the TAIL LAMP switch is turned ON.
• BCM detects the combination switch status signal “5D” when the signal of OUTPUT 4 is input to INPUT 5.
• BCM judges that the TAIL LAMP switch is ON when the signal “5D” is detected.
Example 2: When some switches (TURN RH, TAIL LAMP) are turned ON
• The circuits between OUTPUT 1 and INPUT 5 and between OUTPUT 4 and INPUT 5 are formed when the
TURN RH switch and TAIL LAMP switch are turned ON.
• BCM detects the combination switch status signal “5AD” when the signals of OUTPUT 1 and OUTPUT 4 are
input to INPUT 5.
• BCM judges that the TURN RH switch and TAIL LAMP switch are ON when the signal “5AD” is detected.
WIPER INTERMITTENT DIAL POSITION SETTING (FRONT WIPER INTERMITTENT OPERATION)
BCM judges the wiper intermittent dial 1 - 7 by the status of INT VOLUME 1, 2, and 3 switches.
AWMIA1239GB
AWMIA1240GB
August 2012
2012 Pathfinder
BCS
COMBINATION SWITCH READING SYSTEM
BCS-11
< SYSTEM DESCRIPTION >
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Component Parts Location
INFOID:0000000007354906
Wiper intermittent
dial position
Intermittent
operation delay
interval
INT VOLUME switch ON/OFF status
INT VOLUME 1
INT VOLUME 2
INT VOLUME 3
1
Short
↑
↓
Long
ON
ON
ON
2
ON
ON
OFF
3
ON
OFF
OFF
4
OFF
OFF
OFF
5
OFF
OFF
ON
6
OFF
ON
ON
7
OFF
ON
OFF
1.
BCM M18, M19, M20 (view with low-
er instrument panel LH removed)
2.
Combination switch (lighting and
turn signal switch) M28
3.
Combination switch (wiper and
washer switch) M28
ALMIA0308ZZ
August 2012
2012 Pathfinder
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