2011 INFINITI QX56 stop start

DAS
ADAS CONTROL UNITDAS-303
< ECU DIAGNOSIS INFORMATION > [LDW & LDP]
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ECU DIAGNOSIS INFORMATION
ADAS CONTROL UNIT
Reference ValueINFOID:0000000006223718
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-342
< BASIC INSPECTION >[LDW & LDP]
CAMERA AIMING ADJUSTMENT
3. Mark point “E” on the line “LH” at the
positions 3850 mm (151.57 in) from point “A”.
4. Draw line “RH” passing through points “C” and “D” on the right side of vehicle in the same way as step 2. NOTE:
Approximately 4 m (13.12 ft) or more from the front end of vehicle.
5. Mark point “F” on the line “RH” at the positions 3850 mm (151.57 in) from point “C”.
6. Draw line “FW” passing through the points “E” and “F” on the front side of vehicle.
7. Mark point “X” at the center of point “E” and “F” on the line “FW”.
CAUTION:
Make sure that “E” to “X” is equal to “F” to “X”.
8. Position the center of the ri ght target to point of “X”.
>> Go to DAS-342, "
Work Procedure (Camera Aiming
Adjustment)".
Work Procedure (Camera Aiming Adjustment)INFOID:0000000006223737
CAUTION:
Perform the adjustment under unloaded vehicle condition.
1.CHECK VEHICLE HEIGHT
Measure the wheelarch height. Calculate “Dh”.
NOTE:
“Dh” may be calculated as a minus value.
>> GO TO 2.
2.CAMERA AIMING ADJUSTMENT
CAUTION:
Operate CONSULT-III outside the vehic le, and close all the doors. (To retain vehicle attitude appropri-
ately)
1. Select “Work Support” on “L ANE CAMERA” with CONSULT-III.
2. Select “AUTO AIM”.
3. Confirm the following items;
- The target should be accurately placed.
- The vehicle should be stopped.
4. Select “Start” to perform camera aiming. CAUTION:
 Never select “Start” when the target is not accurately placed.
 Wait 5 seconds or more after selecting “Start”.
5. Input “Dh”, and then select “Start”.
CAUTION:
Never change “Ht” and “Dt”.
6. Confirm the displayed item.
- “Normally Completed”: Select “Completion”.
- “SUSPENSION”, “X AIMING NG Y”, “ABNORMALL Y COMPLETED”: Perform the following services.
JPOIA0173GB
Dh [mm] = (Hfl + Hfr) ÷ 2 − 903
where, Hfl: Front left wheelarch height [mm]
Hfr: Front right wh eelarch height [mm]
JSOIA0361ZZ
Revision: 2010 May2011 QX56

DAS
C1A03 VEHICLE SPEED SENSORDAS-347
< DTC/CIRCUIT DIAGNOSIS > [LDW & LDP]
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C1A03 VEHICLE SPEED SENSOR
DTC LogicINFOID:0000000006223743
DTC DETECTION LOGIC
NOTE:
If DTC “C1A03” is detected along with DTC “U1000” or “C1A04”, first diagnose the DTC “U1000” or “C1A04”.
 Refer to DAS-374, "
ADAS CONTROL UNIT : DTC Logic" for DTC “U1000”.
 Refer to DAS-348, "
DTC Logic" for DTC “C1A04”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the LDP system ON.
3. Drive the vehicle at 30 km/h (19 MPH) or more. CAUTION:
Always drive safely.
4. Stop the vehicle.
5. Perform “All DTC Readi ng” with CONSULT-III.
6. Check if the “C1A03” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A03” detected as the current malfunction?
YES-1 (Lane departure warning lamp: ON)>>Refer to DAS-347, "Diagnosis Procedure".
YES-2 (Lane departure warning lamp: OFF)>>Refer to CCS-87, "
Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223744
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A04” or “U1000” is detected other than “C1A03” in “Self Diagnostic Result” of “ICC/ADAS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-310, "
DTC Index".
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
display) Trouble diagnosis
name DTC detecting condition Possible causes
C1A03 (3) VHCL SPEED SE
CIRC If the vehicle speed signal (wheel speed) from
ABS actuator and electric unit (control unit) re-
ceived by the ADAS control unit via CAN com-
munication, are inconsistent  Wheel speed sensor
 ABS actuator and electric unit (control
unit)
 ADAS control unit
Revision: 2010 May2011 QX56

DAS
C1A14 ECMDAS-355
< DTC/CIRCUIT DIAGNOSIS > [LDW & LDP]
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C1A14 ECM
DTC LogicINFOID:0000000006228195
DTC DETECTION LOGIC
NOTE:
If DTC “C1A14” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to DAS-374,
"ADAS CONTROL UNIT : DTC Logic".
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Operate the ICC system and drive. CAUTION:
Always drive safely.
3. Stop the vehicle.
4. Perform “All DTC Readi ng” with CONSULT-III.
5. Check if the “C1A14” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A14” detected as the current malfunction?
YES >> Refer to DAS-355, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228196
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A14” 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-374, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.PERFORM SELF-DIAGNOSIS OF ECM
Check if any DTC is detected in “S elf Diagnostic Result” of “ENGINE”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
EC-98, "
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
C1A14 (14) ECM CIRCUIT If ECM is malfunctioning  Accelerator pedal position sensor
ECM
 ADAS control unit
Revision: 2010 May2011 QX56

DAS-356
< DTC/CIRCUIT DIAGNOSIS >[LDW & LDP]
C1A15 GEAR POSITION
C1A15 GEAR POSITION
DescriptionINFOID:0000000006228197
ADAS control unit judges the gear pos
ition based on the following signals.
 Current gear position signal transmitt ed from TCM via CAN communication.
 Value of gear ratio calculated from input speed signal transmitted from TCM via CAN communication.
 Value of gear ratio calculated from the vehicle speed signal transmitted from ABS actuator and electric unit
(control unit) via CAN communication.
DTC LogicINFOID:0000000006228198
DTC DETECTION LOGIC
NOTE:
If DTC “C1A15” is detected along with DTC “U1000”, “C1A03”, or “C1A04”, first diagnose the DTC “U1000”,
“C1A03”, or “C1A04”.
 Refer to DAS-374, "
ADAS CONTROL UNIT : DTC Logic" for DTC “U1000”.
 Refer to DAS-347, "
DTC Logic" for DTC “C1A03”.
 Refer to DAS-348, "
DTC Logic" for DTC “C1A04”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the LDP system ON.
3. Drive the vehicle at 10 km/h (6 MPH) or faster for approximately 15 minutes or more.
CAUTION:
Always drive safely.
4. Stop the vehicle.
5. Perform “All DTC Reading” with CONSULT-III.
6. Check if “C1A15” is detected as the current malf unction in the “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A15” detected as the current malfunction?
YES >> Refer to DAS-356, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228199
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A03”, “C1A04”, or “U1000” is detected ot her than “C1A15” in “Self Diagnostic Result” of “ICC/
ADAS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-310, "
DTC Index".
NO >> GO TO 2.
2.CHECK VEHICLE SPEED SIGNAL
Check that “VHCL SPEED SE” operates norma lly in “DATA MONITOR” of “ICC/ADAS”.
CAUTION:
Be careful of the vehicle speed.
Is the inspection result normal?
DTC
(On board dis- play) Trouble diagnosis
name DTC detecting condition Possible causes
C1A15 (15) GEAR POSITION A mismatch between an current gear posi-
tion signal transmitted from TCM via CAN
communication and a gear position calculat-
ed by the ADAS control unit continues for
approximately 11 minutes or more  Input speed sensor
 Vehicle speed sensor A/T (output speed
sensor)
TCM
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-419
< SYSTEM DESCRIPTION > [BSW]
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 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-426
< SYSTEM DESCRIPTION >[BSW]
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
STOP LAMP
ICC BUZZER
BRAKE ACTUATOR
NOTE:
The test can be performed only when the engine is running.
NOTE:
The test is finished in 10 seconds after starting
Te s t i t e mOper-
ation Description  MAIN switch indicator
 ICC system warning lamp
 IBA OFF indicator lamp
METER LAMP Off
Stops sending the following signals to exit from the test
 Meter display signal
 ICC warning lamp signal
 IBA OFF indicator lamp signal OFF
On Transmits the following signals to the combination meter via
CAN communication
 Meter display signal
 ICC warning lamp signal
 IBA OFF indicator lamp signal
ON
Te s t i t e m
Oper-
ation Description Stop lamp
STOP LAMP Off
Stops transmitting the ICC brake hold relay drive signal be-
low to end the test OFF
On Transmits the ICC brake hold relay drive signal ON
Test item Operation Description ICC warning chime operation
sound
ICC BUZZER MODE1
Transmits the buzzer output signals to the combination
meter via CAN communication Intermittent beep sound
Test start Starts the tests of “MODE1” — Reset Stops transmitting the buzzer output signal below to end
the test —
End Returns to the “SELECT TEST ITEM” screen —
Test item Operation Description “PRESS SENS” value
BRAKE ACTUATOR MODE1
Transmits the brake fluid pressure control signal to the
ABS actuator and electric unit (control unit) via CAN
communication 10 bar
MODE2 20 bar
MODE3 30 bar
Test start Starts the tests of “MODE1”, “MODE2” and “MODE3” —
Reset Stops transmitting the brake fluid pressure control signal
below to end the test —
End Returns to the “SELECT TEST ITEM” screen —
PKIB1767J
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-427
< SYSTEM DESCRIPTION > [BSW]
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Active Pedal
CAUTION:
 Shift the selector lever to “P” po
sition, and then perform the test.
 Never depress the accelerator pedal excessively. (T he engine speed may rise unexpectedly when
finishing the test.)
NOTE:
 Depress the accelerator pedal to check when performing the test.
 The test can be performed only when the engine is running.
NOTE:
The test is finished in 10 seconds after starting
DCA INDICATOR
NOTE:
The test can be performed only when the engine is running.
LDP BUZZER
WARNING SYSTEM IND
Test item Operation Description Accelerator pedal operation
Active Pedal MODE1
Transmit the accelerator pedal feedback force control signal
to the accelerator pedal actuator via ITS communication. Constant with a force of 25 N
for 8 seconds
MODE2 Constant with a force of 15 N
for 8 seconds
MODE3 Change up to a force of 25 N for
8 seconds
MODE4 Change up to a force of 15 N for
8 seconds
Test start Starts the tests of “MODE1”, “MODE2”, “MODE3” and
“MODE4” —
Reset Stops transmitting the accelerator pedal feedback force
control signal below to end the test.
—
End Returns to the “SELECT TEST ITEM” screen —
JPOIA0061GB
Te s t i t e m Opera-
tion Description DCA system switch indicator
DCA INDICATOR Off
Stops transmitting the DCA system switch indicator signal be-
low to end the test
—
On Transmits the DCA system switch indicator signal to the com-
bination meter via CAN communication ON
Te s t i t e m
Opera-
tion Description Warning buzzer
LDP BUZZER Off
Stops transmitting the warning buzzer signal below to end the
test
—
On Transmits the warning buzzer signal to the warning buzzer ON
Revision: 2010 May2011 QX56