ABS INFINITI QX56 2011 Factory Service Manual

DAS-496
< DTC/CIRCUIT DIAGNOSIS >[BSW]
U0415 VDC CAN 1
U0415 VDC CAN 1
DTC LogicINFOID:0000000006228274
DTC DETECTION LOGIC
NOTE:
If DTC “U0415” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-486,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U0415” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U0415” detected as the current malfunction?
YES >> Refer to DAS-496, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228275
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “U0415” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-51, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U0415 (126) VDC CAN CIR1 If ADAS control unit de
tects an error signal
that is received from ABS actuator and electric
unit (control unit) via CAN communication ABS actuator and electric unit (control
unit)
Revision: 2010 May2011 QX56

DAS
U0428 STRG SEN CAN 2DAS-497
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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U0428 STRG SEN CAN 2
DTC LogicINFOID:0000000006228276
DTC DETECTION LOGIC
NOTE:
If DTC “U0428” is detected along with DTC “U 1000”, first diagnose the DTC “U1000”. Refer to DAS-486,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U0428” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U0428” detected as the current malfunction?
YES >> Refer to DAS-497, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228277
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U0428” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (C ONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-51, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U0428 (131) STRG SEN CAN CIR2 If ADAS control unit detects an error signal
that is received from steering angle sensor via
CAN communication
Steering angle sensor
Revision: 2010 May2011 QX56

DAS
U150C VDC CAN 3DAS-499
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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U150C VDC CAN 3
DTC LogicINFOID:0000000006228280
DTC DETECTION LOGIC
NOTE:
If DTC “U150C” is detected along with DTC “U1000 ”, first diagnose the DTC “U1000”. Refer to DAS-486,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U150C” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U150C” detected as the current malfunction?
YES >> Refer to DAS-499, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228281
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U150C ” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (C ONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-51, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U150C (158) VDC CAN CIRC 3 ADAS control unit detects an error signal that is
received from ABS actuator and electric unit
(control unit) via CAN communication ABS actuator and electric unit (control
unit)
Revision: 2010 May2011 QX56

DAS
U1514 STRG SEN CAN 3DAS-509
< DTC/CIRCUIT DIAGNOSIS > [BSW]
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U1514 STRG SEN CAN 3
DTC LogicINFOID:0000000006228288
DTC DETECTION LOGIC
NOTE:
If DTC “U1514” is detected along with DTC “U 1000”, first diagnose the DTC “U1000”. Refer to DAS-486,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the BSW system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U1514” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1514” detected as the current malfunction?
YES >> Refer to DAS-509, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228289
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U1514” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to DAS-486, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (C ONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-51, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1514 (165) STRG SEN CAN CIRC 3 ADAS control unit detects an error signal that is
received from steering angle sensor via CAN
communication
Steering angle sensor
Revision: 2010 May2011 QX56

DLK-14
< SYSTEM DESCRIPTION >
COMPONENT PARTS
AUTOMATIC BACK DOOR SYSTEM : Component Parts Location
INFOID:0000000006225835
1. Combination meter 2. BCM
Refer to BCS-4, "
BODY CONTROL
SYSTEM : Component Parts Loca-
tion"
3. ABS actuator and electric unit
Refer to BRC-10, "
Component Parts
Location"
4. Automatic back door switch 5. Automatic back door main switch 6. Automatic back door control module
JMKIA5223ZZ
Revision: 2010 May2011 QX56

COMPONENT PARTSDLK-15
< SYSTEM DESCRIPTION >
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AUTOMATIC BACK DOOR SYST EM : Component DescriptionINFOID:0000000006225836
7. Touch sensor LH 8. Back door request switch 9. Back door lock assembly
10. Back door opener switch 11. Automatic back door close switch 12. Automatic back door warning buzzer
13. Touch sensor RH
A. View with luggage side finisher up-
per removed B. View with back door finisher inner re-
moved
Item Function
Automatic back door control mod-
ule Automatic back door control unit, encoder, automatic back door motor and clutch are in-
stalled
 Automatic back door control unit: Controls the automatic back door system
 Encoder: Automatic back door control unit receives the pulse signals from encoders A
and B that occurred due to synchronization with the back door operation. The automatic
back door control unit calculates the back door position, operation direction, and opera-
tion speed according to the received pulse signals.
 Automatic back door motor: Inputs open/close signal from automatic back door control
unit and activates the automatic back door open/close operation.
 Clutch: Performs the duty control of the power supply to control the operation speed of the back door.
BCM Transmits and receives signals to the automatic back door control module
ABS actuator and electric unit Transmits vehi cle speed signal to CAN communication line
Combination meter Transmits vehicle speed signal to CAN communication line
Automatic back door warning buzz-
er Warns the user of the automatic back door condition and inappropriate operations with the
buzzer sounds
Touch sensor LH/RH During back door close operation, the touch sensor detects any trapped foreign material
Back door opener switch Detects if back door opener switch is press/release
Back door request switch Detects if back door request switch is press/release
Automatic back door switch Detects if automatic back door switch is press/release
Automatic back door main switch Detects if automatic back door main switch is press/release
Automatic back door close switch Detects if automatic back door close switch is press/release
Back door lock assembly Back door closure motor, half latch switch, open switch, close switch and back door switch
are installed
 Closure motor: Inputs open/close signal from automatic back door control unit and acti-
vates the back door auto closure operation
 Half latch switch: Starts the closure motor close operation
 Open switch: Stops the closure motor open operation
 Close switch: Stops the closure motor close operation
 Back door switch: Inputs back door open/ close condition to BCM
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (BCM)DLK-43
< SYSTEM DESCRIPTION >
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*: OFF is displayed when brake pedal is depressed while brake switch power supply is OFF.
ACTIVE TEST
S/L LOCK-IPDM Indicates [On/Off] condition of steering lock unit (LOCK)
S/L UNLK-IPDM Indicates [On/Off] condition of steering lock unit (UNLOCK)
S/L RELAY-REQ Indicates [On/Off] condition of steering lock relay
VEH SPEED 1 Display the vehicle speed signal received from combination meter by numerical value [Km/h]
VEH SPEED 2 Display the vehicle spee d signal received from ABS or VDC or TCM by numerical value [Km/h]
DOOR STAT-DR Indicates [LOCK/READY/UNLK] condition of unlock sensor
DOOR STAT-AS Indicates [LOCK/READY/UNLK] condition of passenger side door status
ID OK FLAG Indicates [Set/Reset] condition of key ID
PRMT ENG STRT Indicates [Set/Reset] condition of engine start possibility
PRMT RKE STRT NOTE:
This item is displayed, but cannot be monitored
TRNK/HAT MNTR NOTE:
This item is displayed, but cannot be monitored
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 item is displayed, but cannot be monitored
RKE-PANIC Indicates [On/Off] condition of PANIC button of Intelligent Key
RKE-MODE CHG Indicates [On/Off] condition of MODE CHANGE signal from Intelligent Key
RKE OPE COUN1 When remote keyless entry receiver receives the signal transmitted while operating on Intelli-
gent Key, the numerical value start changing
RKE OPE COUN2 NOTE:
This item is displayed, but cannot be monitored
Monitor Item Condition
Test item Description
BATTERY SAVER This test is able to check interior room lamp operation
 On: Operate
 Off: Non-operation
OUTSIDE BUZZER This test is able to check Intelligent Key warning buzzer operation
 On: Operate
 Off: Non-operation
INSIDE BUZZER This test is able to check warning chime in combination meter operation
 Take Out: Take away warning chime sounds when CONSULT-III screen is touched
 Key: Key warning chime sounds when CONSULT-III screen is touched
 Knob: OFF position warning chime sounds when CONSULT-III screen is touched
 Off: Non-operation
INDICATOR This test is able to check warning lamp operation
 KEY ON: “KEY” Warning lamp illuminates when CONSULT-III screen is touched
 KEY IND: “KEY” Warning lamp blinks when CONSULT-III screen is touched
 Off: Non-operation
INT LAMP This test is able to check interior room lamp operation
 On: Operate
 Off: Non-operation
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (AUTOMATIC BACK DOOR CONTROL UNIT)
DLK-45
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (AUTOMATIC BACK DOOR CONTROL UNIT)
CONSULT-III Function (AUTOMATIC BACK DOOR CONTROL UNIT)INFOID:0000000006225858
APPLICATION ITEM
CONSULT-III performs the following functions via CA N communication with automatic back door control unit.
DATA MONITOR
SELF-DIAG RESULT
Refer to DLK-50, "DTCIndex".
Diagnosis mode Function Description
Self Diagnostic Result Displays the diagnosis results judged by automatic back door control unit
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from automatic back door
control unit
Data Monitor The automatic back door control unit input/output signals are displayed
Ecu Identification The automatic back door control unit part number is displayed
Monitor Item Unit Description
VHCL SPEED MTR [km/h] Display the vehicle speed signal received from combination meter by nu-
merical value
VHCL SPEED ABS [km/h] Display the vehicle speed
signal received from ABS actuator and electrical
unit by numerical value
VHCL SPEED SIG [NORMAL/ER-
ROR] Indicates condition of vehicle speed from automatic back door control unit
MAIN SW [ON/OFF] Indicates condition of automatic back door main switch
AUTO BD SW [ON/OFF] Indicates condition of automatic back door switch
BK DOOR CL SW [ON/OFF] Indicates condition of automatic back door close switch
UNLOCK SEN DR [ON/OFF] Indicates condition of unlock sensor
OPEN SW [ON/OFF] Indicates condition of open switch
CLOSE SW [ON/OFF] Indicates condition of close switch
HALF LATCH SW [ON/OFF] Indicates condition of half latch switch
TOUCH SEN RH [ON/OFF/OPEN] Indicates condition of touch sensor RH
TOUCH SEN LH [ON/OFF/OPEN] Indicates condition of touch sensor LH
P RANGE IND [ON/OFF] Indicates condition of P range signal from combination meter
RKE REQ [OFF/MOVE/
REV] Indicates condition of remote keyless entry signal from BCM
IGN SW [ON/OFF] Indicates condition of IGN power supply
ENCODER A [LO/HI] Indicates condition of encoder signal from encoder A
ENCODER B [LO/HI] Indicates condition of encoder signal from encoder B
BD OPENER SW [ON/OFF] Indicates condition of back door opener switch
UNLOCK SEN BD [LOCK/
UNLOCK] NOTE:
This item is displayed, but cannot be monitored
DESTINATION [JPN/NAM] Indicates specification of destination of the automatic back door system
HAZARD [ON/OFF] Indica tes specification of hazard warning
Revision: 2010 May2011 QX56

AUTOMATIC BACK DOOR CONTROL MODULEDLK-47
< ECU DIAGNOSIS INFORMATION >
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AUTOMATIC BACK DOOR CONTROL MODULE
Reference ValueINFOID:0000000006225860
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III MONITOR ITEM
Monitor Item Condition Value/Status
VHCL SPEED MTR While driving Equivalent to speedometer
reading
VHCL SPEED ABS While driving Equivalent to speedometer
reading
VHCL SPEED SIG Vehicle speed from automatic back
door control unit Normal NORMAL
Error ERROR
MAIN SW Automatic back door main switch OFF OFF
ON ON
AUTO BD SW Automatic back door switch Release OFF
Press ON
BK DOOR CL SW Automatic back door close switch Release OFF
Press ON
UNLOCK SEN DR Door lock (driver) Unlock OFF
Lock ON
OPEN SW Back door Half latch/fully closed OFF
Open ON
CLOSE SW Back door Open/half latch OFF
Fully closed ON
HALF LATCH SW Back door Half latch/fully closed OFF
Open ON
TOUCH SEN RH Touch sensor RH Other than bellow OFF
Detect obstruction ON
TOUCH SEN LH Touch sensor LH Other than bellow OFF
Detect obstruction ON
P RANGE IND Selector lever Other than P position OFF
P position ON
RKE REQ Intelligent Key button (back door) Release OFF
Press (more than 0.5 sec-
ond)
MOVE
Press (just after) REV
IGN SW Ignition switch Other than ON position OFF
ON position ON
ENCODER A Automatic back door Not operate No change HI or LO
Operate Change HI or LO
ENCODER B Automatic back door Not operate No change HI or LO
Operate Change HI or LO
BD OPENER SW Back door opener switch Release OFF
Press ON
UNLOCK SEN BD Door lock (back door) Unlock OFF
Lock ON
Revision: 2010 May2011 QX56

DLN-2
Work Procedure ......................................................47
CONFIGURATION (TRANSFER CONTROL
UNIT) ..................................................................
48
Description ........................................................... ...48
Work Procedure ......................................................48
DTC/CIRCUIT DIAGNOSIS ...................... ...51
P1802, P1803, P1804, P1809 TRANSFER
CONTROL UNIT ............................................. ...
51
DTC Logic ............................................................ ...51
Diagnosis Procedure ..............................................51
P1807 OUT PUT SHAFT SPEED SENSOR ......52
DTC Logic ............................................................ ...52
Diagnosis Procedure ..............................................52
P1808 WHEEL SPEED SENSOR ......................53
DTC Logic ............................................................ ...53
Diagnosis Procedure ..............................................53
P180C SENSOR POWER SUPPLY (5V) ..........54
Description ........................................................... ...54
DTC Logic ...............................................................54
Diagnosis Procedure ..............................................54
P180D TRANSFER ROTARY POSITION
SENSOR ............................................................
57
DTC Logic ............................................................ ...57
Diagnosis Procedure ..............................................57
P180E SENSOR POWER SUPPLY (8V) ...........59
Description ........................................................... ...59
DTC Logic ...............................................................59
Diagnosis Procedure ..............................................59
P180F TRANSFER INTERNAL SPEED SEN-
SOR ....................................................................
61
DTC Logic ............................................................ ...61
Diagnosis Procedure ..............................................61
P1811 POWER SUPPLY CIRCUIT FOR
TRANSFER CONTROL UNIT ............................
64
Description ........................................................... ...64
DTC Logic ...............................................................64
Diagnosis Procedure ..............................................64
P1813 4WD MODE SWITCH .............................67
DTC Logic ............................................................ ...67
Diagnosis Procedure ..............................................67
Component Inspection ............................................68
P1816 PARKING/NEUTRAL POSITION
SWITCH .............................................................
69
DTC Logic ............................................................ ...69
Diagnosis Procedure ..............................................69
P1817 TRANSFER MOTOR ..............................70
DTC Logic ............................................................ ...70
Diagnosis Procedure ..............................................70
Component Inspection ......................................... ...71
P181A TRANSFER MOTOR TEMPERATURE
SENSOR ............................................................
72
DTC Logic ............................................................ ...72
Diagnosis Procedure ...............................................72
Component Inspection ............................................73
P181B INCOMPLETE SELFSHUT ....................74
DTC Logic ............................................................ ...74
Diagnosis Procedure ...............................................74
P181C TRANSFER MOTOR POWER SUP-
PLY ....................................................................
76
Description ........................................................... ...76
DTC Logic ...............................................................76
Diagnosis Procedure ...............................................76
P181E STEERING ANGLE SENSOR ...............77
DTC Logic ............................................................ ...77
Diagnosis Procedure ...............................................77
P181F INCOMPLETE CALIBRATION ..............78
DTC Logic ............................................................ ...78
Diagnosis Procedure ...............................................78
P1820 ENGINE SPEED SIGNAL ......................79
DTC Logic ............................................................ ...79
Diagnosis Procedure ...............................................79
P1826 TRANSFER FLUID TEMPERATURE ....80
DTC Logic ............................................................ ...80
Diagnosis Procedure ...............................................80
Component Inspection ............................................81
P1829 ACCELERATOR PEDAL POSITION
SENSOR ............................................................
82
DTC Logic ............................................................ ...82
Diagnosis Procedure ...............................................82
P182A TRANSFER HI-LO POSITION SEN-
SOR ...................................................................
83
DTC Logic ............................................................ ...83
Diagnosis Procedure ...............................................83
P182B TRANSFER LOCK POSITION SEN-
SOR ...................................................................
85
DTC Logic ............................................................ ...85
Diagnosis Procedure ...............................................85
P1830 ABS OPERATION SIGNAL ...................88
DTC Logic ............................................................ ...88
Diagnosis Procedure ...............................................88
P1831 VDC OPERATION SIGNAL ...................89
DTC Logic ............................................................ ...89
Diagnosis Procedure ...............................................89
P1832 TCS OPERATION SIGNAL ....................90
DTC Logic ............................................................ ...90
Diagnosis Procedure ...............................................90
Revision: 2010 May2011 QX56