ECU INFINITI QX56 2011 Factory Service Manual

DAS-312
< ECU DIAGNOSIS INFORMATION >[LDW & LDP]
ADAS CONTROL UNIT
C1A34 34 COMMAND ERROR ON A, B, E
CCS-119
C1A35 35 APA CIR ON A, ECCS-120
C1A36 36 APA CAN COMM CIR ON A, ECCS-121
C1A37 133 APA CAN CIR 2 ON A, B, ECCS-122
C1A38 132 APA CAN CIR 1 ON A, B, ECCS-123
C1A39 39 STRG SEN CIR ON ON ON A, B, C, D, E, GCCS-124
C1A40 40 SYSTEM SW CIRC ON C, DCCS-126
C1A2A 80 ICC SEN PWR SUP CIR ON ON A, C, D, E CCS-117
C1B00 81 CAMERA UNIT MALF ON FDAS-361
C1B01 82 CAM AIMING INCMP ON FDAS-363
C1B03 83CAM ABNRML TMP DE-
TCT BLINK F
DAS-365
C1B53 84 SIDE RDR R MALF ON G DAS-482
C1B54 85 SIDE RDR L MALF ON GDAS-483
C1F01 91 APA MOTOR MALF ON A, ECCS-129
C1F02 92 APA C/U MALF ON A, ECCS-130
C1F05 95 APA PWR SUPLY CIR ON A, ECCS-131
NO DTC IS
DETECTED.
FURTHER TESTING
MAY BE RE-
QUIRED 55
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED ———— — —
U0121 127 VDC CAN CIR 2 ON ON ON ON A, B, C, D, E, F, G DAS-367
U0126 130 STRG SEN CAN CIR 1 ON ON ON A, B, C, D, E, GDAS-368
U0235 144 ICC SENSOR CAN
CIRC 1 ON ON A, B, C, D, E
CCS-137
U0401 120 ECM CAN CIR 1 ON ON ON A, B, E, F, G DAS-369
U0402 122 TCM CAN CIR 1 ON ON ON ON A, B, C, D, E, F, GDAS-370
U0415 126 VDC CAN CIR 1 ON ON ON ON A, B, C, D, E, F, GDAS-372
U0428 131 STRG SEN CAN CIR 2 ON ON ON A, B, C, D, E, GDAS-373
U1000NOTE100 CAN COMM CIRCUIT ON ON ON ON A, B, C, D, E, F, GDAS-374
U1010 110 CONTROL UNIT (CAN) ON ON ON ON A, B, C, D, E, F, G DAS-376
Systems for fail-safe
 A: Vehicle-to-vehicle distance control mode
 B: Conventional (fixed speed) cruise control mode
 C: Intelligent Brake Assist (IBA)
 D: Forward Collision Warning (FCW)
 E: Distance Control Assist (DCA)
 F: Lane Departure Warning (LDW)/Lane Departure Prevention (LDP)
 G: Blind Spot Warning (BSW)
DTC
CONSULT-III display Warning lamp Fail-safe
Reference
CONSULT-III On board
display
ICC system warning lamp
IBA OFF indicator lamp
Lane departure warning lamp
BSW warning lamp
System
Revision: 2010 May2011 QX56

DAS
ADAS CONTROL UNITDAS-313
< ECU DIAGNOSIS INFORMATION > [LDW & LDP]
C
D
E
F
G H
I
J
K L
M B
N P A
NOTE:
With the detection of “U1000” some syst ems do not perform the fail-safe operation.
A system controlling based on a signal received from the control unit performs fail-safe operation when the
communication with the ADAS control unit becomes inoperable.
U1500 145 CAM CAN CIR 2 ON F DAS-381
U1501 146 CAM CAN CIR 1 ON FDAS-382
U1502 147ICC SEN CAN COMM
CIR ON ON A, B, C, D, E
CCS-152
U1503 150 SIDE RDR L CAN CIR 2 ON G DAS-502
U1504 151 SIDE RDR L CAN CIR 1 ON GDAS-503
U1505 152 SIDE RDR R CAN CIR 2 ON GDAS-504
U1506 153 SIDE RDR R CAN CIR 1 ON GDAS-505
U1507 154LOST COMM (SIDE
RDR R) ON G
DAS-506
U1508 155LOST COMM (SIDE
RDR L) ON G
DAS-507
U150B 157 ECM CAN CIRC 3 ON ON ON A, B, E, F, G DAS-377
U150C 158 VDC CAN CIRC 3 ON ON ON ON A, B, C, D, E, F, G DAS-378
U150D 159 TCM CAN CIRC 3 ON ON ON ON A, B, C, D, E, F, GDAS-379
U150E 160 BCM CAN CIRC 3 ON ON ON A, B, E, F, GDAS-380
U150F 161 AV CAN CIRC 3 DAS-61
U1512 162 HVAC CAN CIRC3 ON FDAS-383
U1513 163 METER CAN CIRC 3 ON ON ON ON A, B, C, D, E, F, GDAS-384
U1514 164 STRG SEN CAN CIRC 3 ON ON ON A, B, C, D, E, GCCS-154
U1515 165 ICC SENSOR CAN
CIRC 3 ON ON A, B, C, D, E
CCS-155
U1516 166 CAM CAN CIRC 3 ON F DAS-385
U1517 167 APA CAN CIRC 3 ON A, B, ECCS-156
U1518 168 SIDE RDR L CAN CIRC 3 ON G DAS-510
U1519 169SIDE RDR R CAN CIRC
3 ON G
DAS-511
U1520 176 4WD CAN CIRC 3 ON ON ON A, B, C, D, E, F DAS-386
Systems for fail-safe
 A: Vehicle-to-vehicle distance control mode
 B: Conventional (fixed speed) cruise control mode
 C: Intelligent Brake Assist (IBA)
 D: Forward Collision Warning (FCW)
 E: Distance Control Assist (DCA)
 F: Lane Departure Warning (LDW)/Lane Departure Prevention (LDP)
 G: Blind Spot Warning (BSW)
DTC
CONSULT-III display Warning lamp Fail-safe
Reference
CONSULT-III On board
display
ICC system warning lamp
IBA OFF indicator lamp
Lane departure warning lamp BSW warning lamp
System
Revision: 2010 May2011 QX56

DAS-314
< ECU DIAGNOSIS INFORMATION >[LDW & LDP]
LANE CAMERA UNIT
LANE CAMERA UNIT
Reference ValueINFOID:0000000006223722
VALUES ON THE DIAGNOSIS TOOL
Monitor Item Condition Value/Status
LC INACCURAT Lane camera unit malfunction On
Lane camera unit normal Off
AIMING DONE Camera aiming is completed OK
Camera aiming is not adjusted NG
AIMING RESULT Camera aiming is completed OK
Camera aiming is not completed NOK
CAM HIGH TEMP When the temperature around lane camera unit is adequate NORMAL
When the temperature around the lane camera unit is high High
VHCL SPD SE While driving Approximately equivalent to speed-
ometer reading
TURN SIGNAL Turn signal lamp LH and RH blinking LH/RH
Turn signal lamp LH blinking LH
Turn signal lamp RH blinking RH
Turn signal lamps OFF Off
LANE DETCT LH Left side lane marker is detected On
Left side lane marker is not detected Off
LANE DETCT RH Right side lane marker is detected On
Right side lane marker is not detected Off
CROSS LANE LH The vehicle is crossing left side lane marker On
The vehicle is not crossing left side lane marker Off
CROSS LANE RH The vehicle is crossing right side lane marker On
The vehicle is not crossing right side lane marker Off
WARN LANE LH Warning for left side lane On
Not warning for left side lane Off
WARN LANE RH Warning for right side lane On
Not warning for right side lane Off
VALID POS LH Lateral position for left side lane marker is valid VLD
Lateral position for left side lane marker is invalid INVLD
VALID POS RH Lateral position for right side lane marker is valid VLD
Lateral position for right side lane marker is invalid INVLD
XOFFSET Camera aiming is completed Approx. 180 pixel
AIM CHECK YAW NOTE:
The item is indicated, but not used
—
AIM CHECK ROLL NOTE:
The item is indicated, but not used —
AIM CHECK PITCH NOTE:
The item is indicated, but not used —
FCTRY AIM YAW Camera aiming is not completed 0.0 deg
Camera aiming is completed 0
± 5.0 deg
Revision: 2010 May2011 QX56

DAS
LANE CAMERA UNITDAS-315
< ECU DIAGNOSIS INFORMATION > [LDW & LDP]
C
D
E
F
G H
I
J
K L
M B
N P A
TERMINAL LAYOUT
PHYSICAL VALUES
Fail-safeINFOID:0000000006223723
FAIL-SAFE CONTROL BY DTC
Lane Departure Warning (LDW)
If a malfunction occurs in the lane camera unit, AD AS control unit cancels control, and turns ON the lane
departure warning lamp in the combination meter.
Lane Departure Prevention (LDP)
If a malfunction occurs in the lane camera unit, ADAS control unit cancels control, sounds a beep, and turns
ON the lane departure warning lamp in the combination meter.
TEMPORARY DISABLED STATUS AT HIGH TEMPERATURE
Lane Departure Warning (LDW)
 If the vehicle is parked in direct sunlight under high temperature conditions, the system may be deactivated
automatically. And the lane departure warning lamp (yellow) in the combination meter will blinks.
 When interior temperature is reduced, the system wil l resume operation automatically and the lane depar-
ture warning lamp (yellow) in the combination meter will stop blinking.
Lane Departure Prevention (LDP)
FCTRY AIM ROL Camera aiming is not completed 0.0 deg
Camera aiming is completed 0
± 5.0 deg
FCTRY AIM PIT Camera aiming is not completed 0.0 deg
Camera aiming is completed 0
± 5.0 deg
ADAS MALF ADAS control unit malfunction On
ADAS control unit normal Off
Monitor Item Condition Value/Status
JSOIA0232ZZ
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
1
(B)
Ground Ground — — 0 V
4
(L) ITS communication-H — — —
5
(B) Ground — — 0 V
7
(W/G) Ignition power supply Input Ignition switch Battery voltage
8
(Y) ITS communication-L — — —
Revision: 2010 May2011 QX56

DAS-316
< ECU DIAGNOSIS INFORMATION >[LDW & LDP]
LANE CAMERA UNIT
 If the vehicle is parked in direct sunlight under
high temperature conditions, the system may be deactivated
automatically. And the buzzer sounds and lane departure warning lamp (yellow) in the combination meter
will blinks.
 When interior temperature is reduced, the system will resume when dynamic driver assistance switch is
turned OFF and turned ON and the lane departure warning lamp (yellow) in the combination meter will stop
blinking.
DTC Inspection Priority ChartINFOID:0000000006223724
If multiple DTCs are detected simultaneously, chec k them one by one depending on the following DTC inspec-
tion priority chart.
DTC IndexINFOID:0000000006223725
× : Applicable
Priority Detected items (DTC)
1  U1000: CAN COMM CIRCUIT
 U1010: CONTROL UNIT (CAN)
2 C1A50: ADAS MALFUNCTION
3  C1B01: CAM AIMING INCMP
 C1B03: ABNRML TEMP DETECT
 U0104: ADAS CAN CIR1
 U0126: STRG SEN CAN CIR1
 U0405: ADAS CAN CIR2
 U0428: STRG SEN CAN CIR2
4 C1B00: CAMERA UNIT MALF
DTC Lane departure warning
lamp (yellow) Fail-safe Reference
C1A50 ADAS MALFUNCTION ON — DAS-381
C1B00 CAMERA UNIT MALF ON×DAS-361
C1B01 CAM AIMING INCMP ON ×DAS-363
C1B03 ABNRML TEMP DETECT Blink ×DAS-365
U0104 ADAS CAN CIR1 ON ×DAS-366
U0126 STRG SEN CAN CIR1 ON ×DAS-368
U0405 ADAS CAN CIR2 ON ×DAS-371
U0428 STRG SEN CAN CIR2 ON ×DAS-373
U1000 CAN COMM CIRCUIT ON ×DAS-374
U1010 CONTROL UNIT (CAN) ON ×DAS-376
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-419
< SYSTEM DESCRIPTION > [BSW]
C
D
E
F
G H
I
J
K L
M B
N P A
 It displays for up to 5 minutes and then stops.
 If multiple malfunctions exist, up to 6 DTCs can be stored in memory at the most, and the most recent
one is displayed first.
WHEN THE ON BOARD SELF-DIAGNOSIS DOES NOT START
If the on board self-diagnosis does not start, check the following items.
HOW TO ERASE ON BOARD SELF-DIAGNOSIS
1. Turn the ignition switch OFF.
2. Start the engine, and then start the on board self-diagnosis.
3. Press the CANCEL switch 5 times, and then press the DIS-
TANCE switch 5 times under the condition that the on board
self-diagnosis starts.
NOTE:
 Complete the operation within 10 seconds after pressing the
CANCEL switch first.
 If the operation is not completed within 10 seconds, repeat the procedure from step 1.
4. DTC 55 is displayed after erasing. NOTE:
DTCs for existing malfunction can not be erased.
5. Turn ignition switch OFF, and finish the diagnosis.
CONSULT-III Function (ICC/ADAS)INFOID:0000000006223858
APPLICATION ITEMS
CONSULT-III performs the following functions via CAN communication using ADAS control unit.
WORK SUPPORT
Assumed abnormal part Inspection item
Information display Combination meter malfunction Check that the self-diagnosis function of the combina-
tion meter operates. Refer to
MWI-29, "
On Board Diag-
nosis Function"
ICC steering switch malfunction
Perform the inspection for DTC“C1A06”. Refer to CCS-
94, "Diagnosis Procedure"Harness malfunction between ICC steering switch and ECM
ECM malfunction
ADAS control unit malfunction  Check power supply and ground circuit of ADAS con-
trol unit. Refer to DAS-62, "
Diagnosis Procedure".
 Perform SELF-DIAGNOSIS for “ICC/ADAS”with
CONSULT-III, and then check the malfunctioning
parts. Refer to DAS-38, "
DTC Index".
PKIB8373E
Diagnosis mode Description
Work Support Displays causes of automatic system cancellation occurred during system control
Self Diagnostic Result Displays the name of a malfunctioning system stored in the ADAS control unit
Data Monitor Displays ADAS control unit input/output data in real time
Active Test Enables an operational check of a load by transmitting a driving signal from the ADAS control unit to
the load
Ecu Identification Displays ADAS control unit part number
CAN Diag Support Monitor Displays a reception/transmission state of CAN communication and ITS communication
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (SIDE RADAR LH)DAS-429
< SYSTEM DESCRIPTION > [BSW]
C
D
E
F
G H
I
J
K L
M B
N P A
DIAGNOSIS SYSTEM (SIDE RADAR LH)
CONSULT-III Function (SIDE RADAR LEFT)INFOID:0000000006223859
DESCRIPTION
CONSULT-III performs the following functions by communicating with the side radar LH.
WORK SUPPORT
NOTE:
New side radars are in factory-default mode.
SELF DIAGNOSTIC RESULT
Self Diagnostic Result
Displays memorized DTC in side radar LH. Refer to DAS-447, "DTC Index".
FFD (Freeze Frame Data)
The side radar records the following data when the malfunction is detected.
DATA MONITOR
ACTIVE TEST
Select diag mode Function
Work support Switches mode of the side radars to normal usage mode/factory-default mode the detection function.
Self Diagnostic Result Displays memorized DTC in the side radar.
Data Monitor Displays real-time data of side radar.
Active Test Enables operation check of electrical loads by sending driving signal to them.
Ecu Identification Displays part number of side radar.
Work support item Display item Function
ACTIVATE OPERATION Deactivat
Switches mode of the side radars from normal usage mode to factory-default
mode to deactivate the side radar detection function.
Activate Switches mode of the side radars from factory-default mode to normal usage
mode to activate the side radar detection function.
Freeze Frame Data item Description
VHCL SP from ADAS The vehicle speed (from ADAS control unit) at the moment a malfunction is detected is displayed
TURN SIG STATUS Turn signal status at the mome nt a malfunction is detected is displayed
Monitored Item [unit] Description
BEAM DISTANCE — NOTE:
The item is displayed, but it is not used.
BEAM POSITION — NOTE:
The item is displayed, but it is not used.
SIDE RADAR MALF Off Side radar is normal.
On Side radar is malfunctioning.
BLOCKAGE COND Off Side radar is not blocked.
On Side radar is blocked.
ACTIVATE OPE Off Side radar is factory-default mode (“Deactivat” condition).
On Side radar is normal usage mode (“Activate” condition).
VEHICLE DETECT Off Does not detect a vehicle within detection area.
On Detects a vehicle within detection area.
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (SIDE RADAR RH)DAS-431
< SYSTEM DESCRIPTION > [BSW]
C
D
E
F
G H
I
J
K L
M B
N P A
DIAGNOSIS SYSTEM (SIDE RADAR RH)
CONSULT-III Function (SIDE RADAR RIGHT)INFOID:0000000006223860
DESCRIPTION
CONSULT-III performs the following functions by communicating with the side radar RH.
WORK SUPPORT
NOTE:
New side radars are in factory-default mode.
SELF DIAGNOSTIC RESULT
Self Diagnostic Result
Displays memorized DTC in side radar RH. Refer to DAS-447, "DTC Index".
FFD (Freeze Frame Data)
The side radar records the following data when the malfunction is detected.
DATA MONITOR
ACTIVE TEST
Select diag mode Function
Work support Switches mode of the side radars to normal usage mode/factory-default mode the detection function.
Self Diagnostic Result Displays memorized DTC in the side radar.
Data Monitor Displays real-time data of side radar.
Active Test Enables operation check of electrical loads by sending driving signal to them.
Ecu Identification Displays part number of side radar.
Work support item Display item Function
ACTIVATE OPERATION Deactivat
Switches mode of the side radars from normal usage mode to factory-default
mode to deactivate the side radar detection function.
Activate Switches mode of the side radars from factory-default mode to normal usage
mode to activate the side radar detection function.
Freeze Frame Data item Description
VHCL SP from ADAS The vehicle speed (from ADAS control unit) at the moment a malfunction is detected is displayed
TURN SIG STATUS Turn signal status at the mome nt a malfunction is detected is displayed
Monitored Item [unit] Description
BEAM DISTANCE — NOTE:
The item is displayed, but it is not used.
BEAM POSITION — NOTE:
The item is displayed, but it is not used.
SIDE RADAR MALF Off Side radar is normal.
On Side radar is malfunctioning.
BLOCKAGE COND Off Side radar is not blocked.
On Side radar is blocked.
ACTIVATE OPE Off Side radar is factory-default mode (“Deactivat” condition).
On Side radar is normal usage mode (“Activate” condition).
VEHICLE DETECT Off Does not detect a vehicle within detection area.
On Detects a vehicle within detection area.
Revision: 2010 May2011 QX56

DAS
ADAS CONTROL UNITDAS-433
< ECU DIAGNOSIS INFORMATION > [BSW]
C
D
E
F
G H
I
J
K L
M B
N P A
ECU DIAGNOSIS INFORMATION
ADAS CONTROL UNIT
Reference ValueINFOID:0000000006223861
VALUES ON THE DIAGNOSIS TOOL
Monitor item Condition Value/Status
MAIN SW Ignition switch ON When MAIN switch is pressed On
When MAIN switch is not pressed Off
SET/COAST SW Ignition switch ON When SET/COAST switch is pressed On
When SET/COAST switch is not pressed Off
CANCEL SW Ignition switch ON When CANCEL switch is pressed On
When CANCEL switch is not pressed Off
RESUME/ACC SW Ignition switch ON When RESUME/ACCELERATE
switch is pressed On
When RESUME/ACCELERATE switch is not pressed Off
DISTANCE SW Ignition switch ON When DISTANCE swit
ch is pressed On
When DISTANCE switch is not pressed Off
CRUISE OPE Drive the vehicle and activate
the vehicle-to-vehicle distance
control mode When ICC system is controlling On
When ICC system is not controlling Off
BRAKE SW Ignition switch ON When brake pedal is depressed Off
When brake pedal is not depressed On
STOP LAMP SW Ignition switch ON When brake pedal is depressed On
When brake pedal is not depressed Off
IDLE SW Engine running Idling On
Except idling (depress accelerator pedal) Off
SET DISTANCE  Start the engine and turn the
ICC system ON
 Press the DISTANCE switch to change the vehi-
cle-to-vehicle distance set-
ting When set to “long” Long
When set to “middle” Mid
When set to “short” Short
CRUISE LAMP Start the engine and press
MAIN switch ICC system ON
(MAIN switch indicator ON)
On
ICC system OFF
(MAIN switch indicator OFF) Off
OWN VHCL Start the engine and press
MAIN switch ICC system ON
(Own vehicle indicator ON)
On
ICC system OFF
(Own vehicle indicator OFF) Off
VHCL AHEAD Drive the vehicle and activate
the vehicle-to-vehicle distance
control mode When a vehicle ahead is detected (vehicle ahead de-
tection indicator ON)
On
When a vehicle ahead is not detected (vehicle ahead
detection indicator OFF) Off
ICC WARNING Start the engine and press
MAIN switch When ICC system is malfunctioning
(ICC system warning lamp ON)
On
When ICC system is normal
(ICC system warning lamp OFF) Off
Revision: 2010 May2011 QX56

DAS-434
< ECU DIAGNOSIS INFORMATION >[BSW]
ADAS CONTROL UNIT
VHCL SPEED SE While driving Displays the ve-
hicle speed cal-
culated by
ADAS control unit
SET VHCL SPD While driving When vehicle speed is set Displays the set
vehicle speed
BUZZER O/P Engine running When the buzzer of the following system operates
 Vehicle-to-vehicle distance control mode
 DCA system
 FCW system
 IBA system
On
When the buzzer of the following system not operates
 Vehicle-to-vehicle distance control mode
 DCA system
 FCW system
 IBA system Off
THRTL SENSOR NOTE:
The item is indicated, but not monitored
0.0
ENGINE RPM Engine running Equivalent to ta-
chometer read- ing
WIPER SW Ignition switch ON Wiper not operating Off
Wiper LO operation Low
Wiper HI operation High
YAW R AT E NOTE:
The item is indicated, but not monitored
0.0
BA WARNING Engine running IBA OFF indicator lamp ON
 When IBA system is malfunctioning
 When IBA system is turned to OFF
On
IBA OFF indicator lamp OFF
 When IBA system is normal
 When IBA system is turned to ON Off
STP LMP DRIVE Drive the vehicle and activate
the vehicle-to-vehicle distance
control mode When ICC brake hold relay is activated On
When ICC brake hold relay is not activated Off
D RANGE SW Engine running When the selector lever is in “D” position or manual
mode
On
When the selector lever is in any position other than “D”
or manual mode Off
NP RANGE SW Engine running When the selector lever is
in “N”, “P” position On
When the selector lever is in any position other than “N”,
“P” Off
PKB SW Ignition switch ON When the parking brake is applied On
When the parking brake is released Off
PWR SUP MONI Engine running Power supply
voltage value of ADAS control unit
VHCL SPD AT While driving Va l u e o f A / T v e -
hicle speed sen- sor signal
THRTL OPENING Engine running Depress accelerator pedal Displays the
throttle position
Monitor item Condition Value/Status
Revision: 2010 May2011 QX56