display INFINITI QX56 2011 Factory Service Manual

CCS
ICC SENSORCCS-55
< ECU DIAGNOSIS INFORMATION > [ICC]
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Fail-safeINFOID:0000000006224286
If a malfunction occurs in the ICC sensor, ADAS cont rol unit cancels control, sounds a beep, and turns ON the
ICC system warning lamp in the combination meter.
DTC Inspection Priority ChartINFOID:0000000006224287
If multiple DTCs are detected simultaneously, che ck them one by one depending on the following DTC inspec-
tion priority chart.
DTC IndexINFOID:0000000006224288
NOTE:
 The details of time display are as per the following.
- 0: The malfunctions that are detected now
CAN communication system (U1000, U1010)
- 1 - 39: It increases like 0 → 1 → 2 ··· 38 → 39 after returning to the normal condition whenever the ignition
switch OFF → ON. It returns to 0 when a malfunc tion is detected again in the process.
- If it is over 39, it is fixed to 39 unt il the self-diagnosis results are erased.
Other than CAN communication s ystem (Other than U1000, U1010)
- 1 - 49: It increases like 0 → 1 → 2 ··· 38 → 49 after returning to the normal condition whenever the ignition
switch OFF → ON. It returns to 0 when a malfunc tion is detected again in the process.
- If it is over 49, it is fixed to 49 unt il the self-diagnosis results are erased.
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
1
(W/G)
GroundIgnition power supply Input Ignition switch ON Battery voltage
3
(L) ITS communication-H — — —
4
(B) Ground — Ignition switch ON 0 V
6
(Y) ITS communication-L — — —
Priority Detected items (DTC)
1  U1000: CAN COMM CIRCUIT
 U1010: CONTROL UNIT (CAN)
2  C1A50: ADAS MALFUNCTION
3  C1A01: POWER SUPPLY CIR
 C1A02: POWER SUPPLY CIR 2
 C1A12: LASER BEAM OFFCNTR
 C1A16: RADAR STAIN
 C1A18: LASER AIMING INCMP
 C1A21: UNIT HIGH TEMP
 C1A39: STRG SEN CIR
 U0104: ADAS CAN CIR1
 U0121: VDC CAN CIR2
 U0126: STRG SEN CAN CIR1
 U0405: ADAS CAN CIR2
 U0415: VDC CAN CIR1
 U0428: STRG SEN CAN CIR2
4  C1A00: CONTROL UNIT
Revision: 2010 May2011 QX56

CCS-56
< ECU DIAGNOSIS INFORMATION >[ICC]
ICC SENSOR
×
: Applicable
DTC
CONSULT-III display
ICC system warning lamp
Fail-safe function Reference
CONSULT-III
Vehicle-to-vehicle distance control mode
Conventional (fixed speed) cruise control mode
Distance Control Assist (DCA)
Forward Collision Warning (FCW) Intelligent Brake Assist (IBA)
Brake Assist (with preview function)
C1A00 CONTROL UNIT ON ××××××CCS-83
C1A01 POWER SUPPLY CIR ON ××××××CCS-85
C1A02 POWER SUPPLY CIR2 ON ××××××CCS-85
C1A12 LASER BEAM OFFCNTR ON ×××××CCS-96
C1A16 RADAR STAIN ON ×××××CCS-106
C1A18 LASER AIMING INCMP ON ×××××CCS-109
C1A21 UNIT HIGH TEMP ON ××××××CCS-111
C1A39 STRG SEN CIR ON ××××××CCS-124
C1A50 ADAS MALFUNCTION ON ××××××CCS-128
U0104 ADAS CAN CIR1 ON ××××××CCS-132
U0121 VDC CAN CIR2 ON ××××××CCS-133
U0126 STRG SEN CAN CIR1 ON ××××××CCS-135
U0405 ADAS CAN CIR2 ON ××××××CCS-140
U0415 VDC CAN CIR1 ON ××××××CCS-141
U0428 STRG SEN CAN CIR2 ON ××××××CCS-143
U1000 CAN COMM CIRCUIT ON ××××××CCS-145
U1010 CONTROL UNIT (CAN) ON ××××××CCS-147
Revision: 2010 May2011 QX56

CCS
LASER BEAM AIMING ADJUSTMENTCCS-75
< BASIC INSPECTION > [ICC]
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5.CHECK THE ICC TARGET BOARD INSTALLATION AREA
Do not place anything other than ICC target board in the space shown in the figure (view from top).
NOTE:
In case the space shown in the figure is not avail able, cover the side of the ICC target board with a 1400
mm(4.6 ft)-size frosted black board or black cloth.
>> Go to CCS-75, "
Work Procedure (Laser Beam Aiming Adjustment)".
Work Procedure (Laser B eam Aiming Adjustment)INFOID:0000000006224296
DESCRIPTION
 Adjust the laser beam aiming in a vertical di rection with CONSULT-III as per the following.
 The laser beam aiming adjustment in a horizontal dire ction is performed automatically with CONSULT-III.
CAUTION:
 Never look directly into the laser beam source (ICC sensor body window) during laser beam aiming
adjustment.
 Perform all necessary work for laser beam aiming adjustment until the adjustment completes as
shown in the procedure. If the procedure do es not complete, the ICC system is inoperable.
1.SET CONSULT-III TO THE LASER BEAM AIMING ADJUSTMENT MODE
1. Start the engine.
2. Connect CONSULT-III and select “Work support” of “LASER”.
3. Select “LASER BEAM ADJUST” after t he “Work support” screen is displayed.
4. Select “START” after the “LASER BEAM ADJUST” screen is displayed.
NOTE:
If the adjustment screen does not appear within approx imately 10 seconds after “LASER BEAM ADJUST”
is selected, the following causes are possible.
 The ICC target board is not installed in the correct position.
 Adequate space is not secured around the ICC target board.
 The laser beam aiming adjustment exceeds its proper installation range.
- Deformation of vehicle body.
- Deformation of unit.
- Deformation of bracket.
 The area is not suitable for the adjustment work.
 ICC sensor body window is not clean.
 The ICC system warning lamp illuminates.
>> GO TO 2.
2.LASER BEAM AIMING ADJUSTMENT
After “ADJUST THE VERTICAL OF LASER BEAM AIMI NG” is displayed on CONSULT-III screen, adjust by
turning the up-down direction adjusting screw until “U/D CORRECT” becomes ±4 or less.
NOTE:
1. ICC target board 2. ICC sensor
L
1.6.5 m (21.3 ft) L2. 4.0 m (13.0 ft) W. 3.5 m (11.5 ft)
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CCS-76
< BASIC INSPECTION >[ICC]
LASER BEAM AIMING ADJUSTMENT
 Turn the up-down direction adjusting screw slowly. The value change on display is slower than actual move-
ment of the ICC sensor. Wait for 2 seconds every ti me the up-down direction adjusting screw is turned half a
rotation.
 Turning the up-down direction adjusting screw (A) clockwise (C)
directs the laser beam downward. The laser beam directs upward
when turning up-down direction adjusting screw counterclockwise
(B).
CAUTION:
Be careful not to cover the ICC sensor body window with a
hand or the other part of body of worker during adjustment.
>> GO TO 3.
3.LASER BEAM AIMING CONFIRMATION
1. When the “U/D CORRECT” value becomes ±4 or less, check that no value greater than ±4 appears when
the vehicle is left with no load on the ICC s ensor (hand removed) for at least 2 seconds.
2. When “COMPLETED THE VERTICAL AIMING OF LASER BEAM” display appears, touch “END”.
CAUTION:
Always check that the value of “U/D CORRECT” remains ±4 or less when the ICC sensor is left
alone for at least 2 seconds.
3. Check that “ADJUSTING AUTOMATIC HORIZONTAL LASER BEAM AIMING” is displayed and wait for a
short period of time. (The maximum: Approx 10 seconds).
4. Check that “Normally Completed” is displayed, and select “End” to end “LASER BEAM ADJUST”.
CAUTION:
Once “LASER BEAM ADJUST” is started with CONS ULT-III, always continue the work until the
horizontal laser beam aiming ad justment is completed successfully. If the job is stopped midway,
the laser beam aiming is not adjust ed and the ICC system cannot operate.
>> LASER BEAM AIMING ADJUSTMENT END
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Revision: 2010 May2011 QX56

CCS
ACTION TESTCCS-77
< BASIC INSPECTION > [ICC]
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ACTION TEST
DescriptionINFOID:0000000006224297
Always perform the ICC system action test to check that the ICC system operates normally after replacing the
ICC sensor or repairing any ICC system malfunction.
CAUTION:
 Always drive safely when pe rforming the action test.
 Turn the DCA system to OFF when performing the action test.
Work Procedure (Vehicle-To-Vehicle Distance Control Mode)INFOID:0000000006224298
NOTE:
 When there is no vehicle ahead, drive at the set speed steadily.
 When there is a vehicle ahead, control to maintain distance from the vehicle ahead, watching its speed.
 The running speed can be set between 32 km/h (20 MPH) and 144 km/h (90 MPH).
CAUTION:
Never set the cruise speed exceeding the posted speed limit.
1.CHECK FOR MAIN SWITCH
1. Start the engine.
2. Press the MAIN switch (1) (less than 1.5 seconds).
3. Check the ICC system display on the information displa y to check that the vehicle-to-vehicle distance con-
trol mode is ready for activation.
4. Press the MAIN switch, and check that the ICC syst em display on the information display turns OFF when
the ICC system is deactivated.
5. Check that the ICC system displa y on the information display turns OFF after starting the engine again.
>> GO TO 2.
2.CHECK FOR DISTANCE SWITCH
1. Start the engine.
2. Press the MAIN switch (less than 1.5 seconds).
3. Press the DISTANCE switch.
Information display status
MAIN switch indicator (2) : ON
Set distance indicator (3) : Long mode
Own vehicle indicator (4) : ON
Set vehicle speed indicator (5) : “— —”
“km/h” (“MPH”)
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CCS-78
< BASIC INSPECTION >[ICC]
ACTION TEST
4. Check that the set distance indicator changes display in order of: (Long)
→(Middle) →(Short).
NOTE:
When the MAIN switch is turned ON, initial setting set to (Long). >> GO TO 3.
3.CHECK FOR RESUME/ACCELERATE, SE T/COAST, AND CANCEL SWITCHES
1. Check that RESUME/ACCELE RATE, SET/COAST, CANCEL switches are operated smoothly.
2. Check that switches come up as hand is released from the switches.
>> GO TO 4.
4.SET CHECKING (1)
1. Start the engine.
2. Press the MAIN switch (less than 1.5 seconds) and tu rn the vehicle-to-vehicle distance control mode ON.
3. Drive the vehicle at 32 km/h (20 MPH) or more.
4. Push down the SET/COAST switch.
5. Check that the desired speed is set and vehicle-to -vehicle distance control mode control starts when
releasing SET/COAST switch.
NOTE:
The set vehicle speed is indicated on the set vehicle s peed indicator in the ICC system display on the informa-
tion display.
>> GO TO 5.
5.CHECK FOR INCREASE OF CRUISING SPEED (1)
1. Set the vehicle-to-vehicle distance control mode at desired speed.
2. Check that the set speed increases by 1 km/h (1 MPH) as RESUME/ACCELERATE switch is pushed up.
NOTE:
The maximum set speed of the vehicle-to-vehicl e distance control mode is 144 km/h (90 MPH).
CAUTION:
Never set the cruise speed exceed ing the posted speed limit.
>> GO TO 6.
6.CHECK FOR DECREASE OF CRUISING SPEED (1)
1. Set the vehicle-to-vehicle distance control mode at desired speed.
2. Check that the set speed decreases by 1 km/h (1 MPH) as SET/COAST switch is pushed down.
NOTE:
 The minimum set speed is approximately 32 km/h (20 MPH).
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Revision: 2010 May2011 QX56

CCS
ACTION TESTCCS-79
< BASIC INSPECTION > [ICC]
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 Cancel the control automatically when the vehicle speed is less than approximately 24 km/h (15 MPH) and
when the system does not detect any vehicle ahead.
>> GO TO 7.
7.SET CHECKING (2)
1. Stop the vehicle.
2. Drive the vehicle at less than approximately 32 km/h (20 MPH).
3. Push down the SET/COAST switch w hen the system detects a vehicle ahead.
4. Check that the vehicle-to-vehicle distance control mode is performed so that the vehicle maintains a
proper distance according to the vehicle speed [maximum: approximately 32 km/h (20 MPH)] when
releasing SET/COAST switch.
NOTE:
 The vehicle-to-vehicle distance control mode cannot be set when the vehicle speed is less than 32 km/h (20
MPH) and when a vehicle ahead is not detected.
 Cancel the control automatically w hen the vehicle speed is 24 km/h (15 MP H) or less during the control and
when the system does not detect any vehicle ahead.
 The set vehicle speed indicator in the ICC system display on the information display is set to 32 km/h (20 MPH).
>> GO TO 8.
8.CHECK FOR INCREASE OF CRUISING SPEED (2)
1. Set the vehicle-to-vehicle distance control mode when the vehicle speed is less than approximately 32
km/h (20 MPH) and when a vehicle ahead is detected.
2. Check that the set speed increases by 1 km/h (1 MPH) as RESUME/ACCELERATE switch is pushed up.
NOTE:
The maximum set speed of the vehicle-to-vehicl e distance control mode is 144 km/h (90 MPH).
CAUTION:
Never set the cruise speed exceed ing the posted speed limit.
>> GO TO 9.
9.CHECK FOR DECREASE OF CRUISING SPEED INSPECTION (2)
1. Set the vehicle-to-vehicle distance control mode when the vehicle speed is less than approximately 32
km/h (20 MPH) and when a vehicle ahead is detected.
2. Set the set vehicle speed to the desired vehicle speed according to “check for increase of cruising speed”.
3. Check that the set speed decreases by 1 km/h (1 MPH) as SET/COAST switch is pushed down.
NOTE:
 The minimum the set speed is approximately 32 km/h (20 MPH).
 If the vehicle ahead comes to a stop, the vehicle decelerat es to a standstill within the limitations of the sys-
tem. The system will cancel once it j udges a standstill with a warning chime.
CAUTION:
The creep occurs because the stop status is not maintained.
>> GO TO 10.
10.CHECK FOR CANCELLATION OF VEHICLE-T O-VEHICLE DISTANCE CONTROL MODE
Check that the vehicle-to-vehicle distance control m ode is canceled when performing the following operations.
 When the brake pedal is depressed after vehicle-to-vehi cle distance control mode is set and the vehicle is
driven.
 When the selector lever is in the “N” position after vehicle-to-vehicle distance control mode is set and the
vehicle is driven.
 When the MAIN switch is turned OFF after vehicle-to -vehicle distance control mode is set and the vehicle is
driven.
 When the CANCEL switch is pressed after vehicle-to-v ehicle distance control mode is set and the vehicle is
driven.
>> GO TO 11.
Revision: 2010 May2011 QX56

CCS-80
< BASIC INSPECTION >[ICC]
ACTION TEST
11 .CHECK FOR RESTORING SPEED THAT IS SET BY
VEHICLE-TO-VEHICLE DISTANCE CONTROL
MODE BEFORE CANCELLATION
Check that the vehicle restores the previous speed kept before the syst em deactivation when performing the
following operations.
 Drive the vehicle when the vehicle-to-vehicle dist ance control mode is set and depress the brake pedal to
cancel the control. Check that the vehicle restores the previous vehicle speed kept before the system deac-
tivation when pushing up the RESUME/ACCELERATE switch.
 Drive the vehicle when the vehicle-to-vehicle distance c ontrol mode is set and shift the selector lever to the
“N” position to cancel the control. Check that the vehi cle restores the previous vehicle speed kept before the
system deactivation when shifting the selector lever to the “D” position and pushing up the RESUME/
ACCELERATE switch.
 Drive the vehicle when the vehicle-to-vehicle distanc e control mode is set and press the CANCEL switch to
cancel the control. Check that the vehicle restores the previous vehicle speed kept before the system deac-
tivation when pushing up the RESUME/ACCELERATE switch.
>> INSPECTION END
Work Procedure [Conventional (Fix ed Speed) Cruise Control Mode]INFOID:0000000006224299
NOTE:
The running speed can be set between 40 km/h (25 MPH) and 144 km/h (90 MPH).
CAUTION:
Never set the cruise speed exceed ing the posted speed limit.
1.CHECK FOR MAIN SWITCH
1. Start the engine.
2. Press the MAIN switch (1) (1.5 seconds or more).
3. Check that the ICC system display on the information display turns on and the display is ready for activa-
tion.
4. Press the MAIN switch, and check that the ICC system display on the information display turns OFF when
the ICC system is deactivated.
5. Check that the ICC system display on the informat ion display turns OFF after starting the engine again.
>> GO TO 2.
2.CHECK FOR RESUME/ACCELERATE, SE T/COAST, AND CANCEL SWITCHES
1. Check that RESUME/ACCELE RATE, SET/COAST, CANCEL switches are operated smoothly.
2. Check that switches come up as hand is released from the switches.
>> GO TO 3.
3.SET CHECKING
1. Start the engine.
2. Press the MAIN switch (1.5 seconds or more) and tu rn the conventional (fixed speed) cruise control mode
to ON.
3. Drive the vehicle at 40 km/h (25 MPH) or more.
4. Push down the SET/COAST switch.
Information display status
MAIN switch indicator (2) : ON
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CCS
ACTION TESTCCS-81
< BASIC INSPECTION > [ICC]
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5. Check that the desired speed is set and conventional (fixed speed) cruise control mode control starts
when releasing SET/COAST switch.
NOTE:
 The set vehicle speed is not displayed in the ICC system display on the information display.
 Display the set status in the ICC syst em display on the information display.
>> GO TO 4.
4.CHECK FOR INCREASE OF CRUISING SPEED
1. Set the vehicle speed to any desired speed, and drive the vehicle.
2. Check that the set speed increases by 1.6 km/h (1 MPH) as RESUME/ACCELERATE switch is pushed
up.
NOTE:
 The maximum set speed is 144 km/h (90 MPH).
 The set vehicle speed increases while pushing up the RESUME/ACCELERATE switch.
CAUTION:
Never set the cruise speed exceed ing the posted speed limit.
>> GO TO 5.
5.CHECK FOR DECREASE OF CRUISING SPEED
1. Set the vehicle speed to any desired speed, and drive the vehicle.
2. Check that the set speed decreases by 1.6 km/h (1 MPH) as SET/COAST switch is pushed down.
NOTE:
 The minimum set speed is 40 km/h (25 MPH).
 The set vehicle speed decreases while pressing down the SET/COAST switch.
 Cancel the control automatically when the vehicle speed lowers to less than approximately 32 km/h (20
MPH).
>> GO TO 6.
6.CHECK FOR CANCELLATION OF CONVENTIONAL (FIXED SPEED) CRUISE CONTROL MODE
Check that the conventional (fixed speed) cruise c ontrol mode is canceled when performing the following
operations.
 When the brake pedal is depressed after the conventional (fixed speed) cruise control mode is set and the
vehicle is driven.
 When the selector lever is in the “N” position after t he conventional (fixed speed) cruise control mode is set
and the vehicle is driven.
 When the MAIN switch is turned OFF after the convent ional (fixed speed) cruise control mode is set and the
vehicle is driven.
 When the CANCEL switch is pressed after the conventi onal (fixed speed) cruise control mode is set and the
vehicle is driven.
>> GO TO 7.
7.CHECK FOR RESTORING SPEED THAT IS SET BY CONVENTIONAL (FIXED SPEED) CRUISE CON-
TROL MODE BEFORE CANCELLATION
Check that the vehicle restores the previous s peed kept before the system deactivation when performing the
following operations.
 Drive the vehicle when the conventional (fixed speed) cruise control mode is set and depress the brake
pedal to cancel the control. Check that the vehicle re stores the previous vehicle speed kept before the sys-
tem deactivation when pushing up the RESUME/ACCELERA TE switch at the vehicle speed approximately
40 km/h (25 MPH) or more.
 Drive the vehicle when the conventional (fixed speed) cr uise control mode is set and shift the selector lever
is in the “N” position to cancel the control. Check t hat the vehicle restores the previous vehicle speed kept
before the system deactivation when shifting the select or lever is in the “D” position and pushing up the
RESUME/ACCELERATE switch at the vehicle speed of approximately 40 km/h (25 MPH) or more.
 Drive the vehicle when the conventional (fixed speed) cruise control mode is set and press the CANCEL
switch to cancel the control. Check that the vehicle restores the previous vehicle speed kept before the sys-
Revision: 2010 May2011 QX56

CCS
C1A03 VEHICLE SPEED SENSORCCS-87
< DTC/CIRCUIT DIAGNOSIS > [ICC]
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C1A03 VEHICLE SPEED SENSOR
DTC LogicINFOID:0000000006224308
DTC DETECTION LOGIC
NOTE:
If DTC “C1A03” is detected along with DTC “U1000” or “C1A04”, first diagnose the DTC “U1000” or “C1A04”.
 Refer to CCS-145, "
ADAS CONTROL UNIT : DTC Logic" for DTC “U1000”.
 Refer to CCS-89, "
DTC Logic" for DTC “C1A04”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the MAIN switch of ICC 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 >> Refer to CCS-87, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006224309
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
CCS-50, "
DTC Index".
NO >> GO TO 2.
2.CHECK DATA MONITOR
1. Start the engine.
2. Drive the vehicle.
3. Check that the value of “VHCL SPD AT” is almost the same as the value of “VHCL SPEED SE” in “DATA
MONITOR” of “ICC/ADAS”.
CAUTION:
Be careful of the vehicle speed.
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> GO TO 3.
3.CHECK TCM SELF-DIAGNOSIS RESULTS
1. Perform “All DTC Reading”.
2. Check if any DTC is detected in “Sel f Diagnostic Result” of “TRANSMISSION”.
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) and
the A/T vehicle speed sensor signal (output
shaft revolution signal) from TCM, received by
the ADAS control unit via CAN communication,
are inconsistent  Wheel speed sensor
 ABS actuator and electric unit (control
unit)
 Vehicle speed sensor A/T (output speed sensor)
TCM
 ADAS control unit
Revision: 2010 May2011 QX56