steering INFINITI QX56 2006 Factory Service Manual

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Revision: November 2009 2006 QX56
8 BR/Y Pedal sensor input signalPedal position front end
0.5
Pedal position rear end 4.5
9 LG/B Seat memory switch 1 signal Memory switch 1 ON
0
Memory switch 1 OFF 5
10 L UART LINE (TX) Pedal adjusting switch ON (FOR-
WARD or BACKWARD operation)
12 P Seat memory switch indictor 1
signal Memory switch 1 ON
0
Memory switch 1 OFF Battery voltage
13 Y/G Seat memory switch indictor 2
signal Memory switch 2 ON
0
Memory switch 2 OFF Battery voltage
14 GR/R Mirror motor RH UP signal Mirror motor RH is operated UP
1.5 - Battery voltage
Other than above 0
15 V/R Mirror motor RH LEFT signal Mirror motor RH is operated LEFT
1.5 - Battery voltage
Other than above 0
16 O Mirror motor LH DOWN signal
Mirror motor LH is operated DOWN 1.5 - Battery voltage
Other than above
0
Mirror motor LH RIGHT signal Mirror motor LH is operated RIGHT 1.5 - Battery voltage
Other than above
0
17 G/B ADP steering switch TILT
DOWN ADP steering switch in DOWN posi-
tion
0
Other than above 5
18 BR/W Changeover switch LH signal Changeover switch in LH position
0
Other than above 5
19 SB Mirror switch DOWN signal Mirror switch in DOWN position
0
Other than above 5
20 GR Mirror switch RIGHT signal Mirror switch in RIGHT position
0
Other than above 5
21 L/W Mirror sensor (RH horizontal)
signal Mirror motor RH is operated LEFT
or RIGHT Changes between 3.4 (close to left
edge) 0.6 (close to right edge)
22 G Mirror sensor (LH horizontal)
signal Mirror motor LH is operated LEFT
or RIGHT Changes between 3.4 (close to left
edge) 0.6 (close to right edge)
24 G/O Seat memory set switch signal Set switch 1 ON
0
Set switch 1 OFF 5
25 P/L Seat memory switch 2 signal Memory switch 2 ON
0
Memory switch 2 OFF 5
26 W UART LINE (RX) Pedal adjusting switch ON (FOR-
WARD or BACKWARD operation)
Te r m i n a l
Wire
Color Item
Condition Voltage (V)
(Approx.)
PIIA4813E
PIIA4814E

SE-30
AUTOMATIC DRIVE POSITIONER
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Work Flow EIS004XM
1. Check the symptom and customer's requests.
2. Understand the system description. Refer to SE-12, "
System Description" .
3. Perform the preliminary check. Refer to SE-31, "
Preliminary Check" .
4. Check the self-diagnosis, results using CONSULT-II. Refer to SE-34, "
CONSULT-II Function (AUTO
DRIVE POS.)" .
5. Repair or replace depending on the self-diagnostic results.
6. Based on the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SE-38,
"Symptom Chart" .
7. Does the automatic drive positioner system operate normally? If it is normal, GO TO 8.
If it is not normal, GO TO 3.
8. Inspection End.
30 Y Mirror motor RH DOWN signal
Mirror motor RH is operated DOWN 1.5 - Battery voltage
Other than above 0
Mirror motor RH RIGHT signal Mirror motor RH is operated RIGHT 1.5 - Battery voltage
Other than above
0
31 R Mirror motor LH UP signal Mirror motor LH is operated UP
1.5 - Battery voltage
Other than above 0
32 BR Mirror motor LH LEFT signal Mirror motor LH is operated LEFT
1.5 - Battery voltage
Other than above 0
33 W/L Sensor power supply —5
34 Y/R Battery power supply —Battery voltage
35 R Tilt motor UP signal ADP steering switch in UP position
Battery voltage
Other than above 0
37 G Pedal adjust motor FORWARD
signal Pedal adjust motor FORWARD
operation (Motor operated)
Battery voltage
Other than above 0
39 L/B Battery power supply —Battery voltage
40 B/W Ground —0
41 W/G Sensor ground —0
42 V Tilt motor DOWN signal ADP steering switch in DOWN posi-
tion
Battery voltage
Other than above 0
45 R Pedal adjust motor BACK-
WARD signal Pedal adjust motor BACKWARD
operation (Motor operated)
Battery voltage
Other than above 0
48 B Ground —0
Te r m i n a l
Wire
Color Item
Condition Voltage (V)
(Approx.)

AUTOMATIC DRIVE POSITIONERSE-31
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Preliminary CheckEIS004XN
SETTING CHANGE FUNCTION
The settings of the automatic driving positioner system can be changed, using CONSULT-II and the display in
the center of the instrument panel.
×: Applicable –: Not applicable
It is possible to set sliding front seat for entry/exit of vehicle by pressing set switch.
*: Setting of sliding front seat for entry/exit of vehicle is ON at factory-shipment. But if custom settings are reset, setting turns OFF.
NOTE:
After the setting is registered, the new setting is effective, even if the battery is disconnected.
POWER SUPPLY AND GROUND CIRCUIT INSPECTION
1. CHECK BCM FUSES AND FUSIBLE LINK
Check if any of the following fuses for the BCM are blown.
NOTE:
Refer to SE-11, "
Component Parts And Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
65, "ELECTRICAL UNITS LOCATION" .
Setting item ContentCONSULT
–II
(WORK SUPPORT) Display unitDefault
setting Factory
setting
SEAT SLIDE
VOLUME SET The distance at exiting opera-
tion can be selected from the
following 3 modes. 40mm
—××
80mm ——
150mm ——
Sliding Front Seat and
Steering Wheel Raise
When Entry/ Exiting
Vehicle The seat sliding and steering
wheel raise turnout and return
at entry/exit can be selected:
ON (operated)
–OFF (not
operated) ON
ON: Indicator lamp ON —×
OFF OFF: Indicator lamp OFF ×—
Reset custom settings* All settings to default. —Default: Setting button
ON ——
Content
Setting change operation Indicator LEDs
The seat sliding and steering
wheel raise turnout and return
at entry/exit can be operated. Press the set switch for more than 10 seconds Blinking twice
The seat sliding and steering
wheel raise turnout and return
at entry/exit can be not oper-
ated. Blinking once
Unit
Power source Fuse No.
BCM Battery power supply
f (50A)
ON or START power supply 59 (10A)
ACC or ON power supply 4 (10A)

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AUTOMATIC DRIVE POSITIONER
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SELF-DIAGNOSIS RESULTS
DISPLAY ITEM LIST
NOTE:

If park switch error is detected, manual adjustable pedal operation cannot be performed when ignition
switch turns ON.

The displays of CAN communication and detection switch display error detecting condition from memory
erase to the present on “TIME”.
–If error is detected in the past and present error is detected, “CRNT” is displayed.
–If error is detected in the past and present error is not detected, “PAST” is displayed.
–If error has never been detected, nothing is displayed on “TIME ”.

Any items other than CAN communication and park switch count error detection frequency occurred after
erase history to “1-127”.
–If error was detected in the past, error detection frequency from memory erase to the present is displayed
on “TIME ”.
–If error has never been detected, nothing is displayed on “TIME ”.
–Can clear the detected memory.
Normal: Clear memory in normal condition, history is erased and nothing is displayed on “TIME”.
Error: Clear memory in error condition, error is detected again and “1” is displayed on “TIME”.
CONSULT-II display Item Malfunction is detected when...Reference
page
CAN COMM CIRC
[U1000] CAN communication Malfunction is detected in CAN communication.
SE-38
SEAT SLIDE
[B2112]Seat slide motor When any manual and automatic operations are not performed, if
any motor operations of seat slide is detected for 0.1 second or
more, status is judged “
Output error”. SE-40
SEAT RECLINING
[B2113]
Seat reclining motor When any manual and automatic operations are not performed, if
any motor operations of seat reclining is detected for 0.1 second or
more, status is judged “
Output error”. SE-41
SEAT LIFTER FR
[B2114]
Seat lifting FR motor When any manual and automatic operations are not performed, if
any motor operations of seat lifting FR is detected for 0.1 second or
more, status is judged “
Output error”. SE-42
SEAT LIFTER RR
[B2115]
Seat lifting RR motor When any manual and automatic operations are not performed, if
any motor operations of seat lifting RR is detected for 0.1 second or
more, status is judged “
Output error”. SE-44
STEERING TILT
[B2116]
Steering tilt motor When any manual and automatic operations are not performed, if
any motor operations of tilt is detected for 0.1 second or more, status
is judged
“Output error ”. SE-49
TILT SENSOR
[B2118]
Steering tilt sensor When steering tilt sensor detects 0.5V or lower, or 4.5V or higher, for
0.5 seconds or more.
SE-59
ADJ PEDAL
MOTOR
[B2117]Pedal adjust motor When any manual and automatic operations are not performed, if
motor operations of seat pedal is detected for 0.1 second or more,
status is judged
“Output error ”. SE-45
ADJ PEDAL SEN-
SOR
[B2120]Pedal adjust sensor
When pedal adjust sensor detects 0.5V or lower, or 4.5V or higher,
for 0.5 seconds or more. SE-55
DETENT SW
[B2126]Park SW With the A/T selector lever in P position (park position switch OFF), if
the vehicle speed of 7 km/h (4 MPH) or higher was input the park
position switch input system is judged malfunctioning. SE-76
UART COMM
[B2128]UART communica-
tion
Malfunction is detected in UART communication.
SE-80

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A part of seat system does not operate (both automati-
cally and manually).1. Sliding motor circuit inspection
SE-40
2. Reclining motor circuit inspection SE-41
3. Lifting motor (front) circuit inspectionSE-42
4. Lifting motor (rear) circuit inspectionSE-44
5. If the above systems are normal, replace the driver seat
control unit. SE-11
A part of pedal adjust and door mirror does not operate
(both automatically and manually).1. Pedal adjusting motor circuit inspection
SE-452. Mirror motor LH circuit check SE-46
3. Mirror motor RH circuit check SE-48
4. If the above systems are normal, replace the automatic
drive positioner control unit. SE-11
A part of seat system does not operate (only automatic
operation).1. Sliding sensor circuit inspection
SE-51
2. Reclining sensor circuit inspectionSE-52
3. Lifting sensor (front) circuit inspectionSE-53
4. Lifting sensor (rear) circuit inspectionSE-54
5. If the above systems are normal, replace the driver seat
control unit. SE-11
A part of door mirror system does not operate (only
automatic operation).1. Mirror sensor LH circuit check
SE-562. Mirror sensor RH circuit checkSE-57
3. If the above systems are normal, replace the automatic
drive positioner control unit. SE-11
All of the automatic operations do not operate.1.A/T device (park position switch) circuit inspection
SE-76
2. UART communication line circuit inspectionSE-80
3. Pedal adjusting sensor circuit inspectionSE-55
4. Steering wheel tilt sensor circuit inspectionSE-59
4. If all the above systems are normal, replace the auto-
matic drive positioner control unit. SE-11
A part of seat system does not operate (only manual
operation).1. Sliding switch circuit inspection
SE-61
2. Reclining switch circuit inspectionSE-62
3. Lifting switch (front) circuit inspectionSE-64
4. Lifting switch (rear) circuit inspectionSE-65
5. If the above systems are normal, replace the driver seat
control unit. SE-11
A part of pedal adjust and door mirror does not operate
(only manual operation).1. Pedal adjusting switch circuit inspection
SE-67
2. Door mirror remote control switch (change over switch)
circuit inspection SE-69
3. Door mirror remote control switch (mirror switch) switch-
ing circuit inspection SE-70
4. If the above systems are normal, replace the automatic
drive positioner control unit.
SE-11
Automatic drive positioner system does not operate
(only memory switch operation).1. Seat memory switch circuit inspection
SE-722. If the above systems are normal, replace the driver seat
control unit. SE-11
Seat memory indicator lamps 1 and 2 do not illuminate.1. Seat memory indicator lamp circuit inspection
SE-742. If all the above systems are normal, replace the driver
seat control unit. SE-11
Symptom
Diagnoses / service procedure Refer to
page

AUTOMATIC DRIVE POSITIONERSE-49
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3. CHECK DOOR MIRROR RH CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and door mir- ror RH.
3. Check continuity between automatic drive positioner control unit connector M33 terminals 14, 15, 30 and door mirror RH connec-
tor D107 terminals 1, 2, 3.
4. Check continuity between automatic drive positioner control unit connector M33 terminal 14, 15, 30 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK MIRROR MOTOR SIGNAL
1. Connect automatic drive positioner control unit and door mirror RH.
2. Turn ignition switch to ACC.
3. Check voltage between door mirror RH connector and ground.
OK or NG
OK >> Replace door mirror motor RH. Refer to GW-94, "Door Mirror Assembly" .
NG >> Repair or replace harness.
Steering Wheel Tilt Circuit InspectionEIS004XY
1. CHECK STEERING WHEEL TILT MECHANISM
Check the following.

Operation malfunction caused by pedal adjusting mechanism deformation or pinched harness or other
foreign materials

Operation malfunction and interference with other parts by poor installation
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning part and check again. 14 - 1
: Continuity should exist.
15 - 2 : Continuity should exist.
30 - 3 : Continuity should exist.
14 - Ground : Continuity should not exist.
15 - Ground : Continuity should not exist.
30 - Ground : Continuity should not exist.
LIIA1001E
ConnectorTerminals
ConditionVoltage (V)
(Approx.)
(+) (-)
D107 1
Ground Mirror motor is operated
UP
1.5 - Battery
voltage
Other than above 0
2 Mirror motor is operated
LEFT
1.5 - Battery
voltage
Other than above 0
3 Mirror motor is operated
DOWN or RIGHT
1.5 - Battery
voltage
Other than above 0
LIIA1002E

SE-50
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 QX56
2. CHECK FUNCTION
With CONSULT-II
Check operation with “TILT MOTOR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Steering wheel tilt motor circuit is OK.
NG >> GO TO 3.
3. CHECK STEERING WHEEL TILT MOTOR HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and steering wheel tilt motor.
3. Check continuity between automatic drive positioner control unit connector M34 terminals 35, 42 and steering wheel tilt motor
connector M68 terminals 1, 5.
4. Check continuity between automatic drive positioner control unit connector M34 terminals 35, 42 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive positioner control unit connector and steering wheel tilt motor.
2. Check voltage between automatic drive positioner control unit connector and ground.
OK or NG
OK >> Replace steering wheel tilt motor. Refer to PS-9, "TILT MOTOR AND TILT SENSOR" .
NG >> Replace automatic drive positioner control unit.
Test item Description
TILT MOTOR The pedal adjust motor is activated by receiving the drive signal.
PIIA0280E
35 - 1 : Continuity should exist.
42 - 5 : Continuity should exist.
35 - Ground : Continuity should not exist.
42 - Ground : Continuity should not exist.
LIIA1431E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M34 35
Ground Tilt switch ON
(UP operation)
Battery voltage
Other than above 0
42 Tilt switch ON
(DOWN operation)
Battery voltage
Other than above 0
LIIA0482E

AUTOMATIC DRIVE POSITIONERSE-59
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4. CHECK HARNESS CONTINUITY 2
1. Disconnect automatic drive positioner control unit and door mir- ror RH.
2. Check continuity between automatic drive positioner control unit connector M33 terminals 5, 21 and door mirror RH connector
D107 terminals 7, 8.
3. Check continuity between automatic drive positioner control unit connector M33 terminals 5, 21 and ground.
OK or NG
OK >> Replace door mirror RH. Refer to GW-94, "Door Mirror Assembly" .
NG >> Repair or replace harness.
Steering Wheel Tilt Sensor Circuit InspectionEIS004Y6
1. CHECK FUNCTION
With CONSULT-II
Operate the pedal adjusting switch with “TILT SEN” on the DATA
MONITOR to make sure the voltage changes.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner connector and ground.
OK or NG
OK >> Steering wheel tilt sensor circuit is OK.
NG >> GO TO 2. 5 - 7
: Continuity should exist.
21 - 8 : Continuity should exist.
5 - Ground : Continuity should not exist.
21 - Ground : Continuity should not exist.
LIIA1473E
Monitor item [OPERA-
TION or UNIT] Contents
TILT SEN “V ” The tilt position (voltage) judged from the tilt sensor sig-
nal is displayed.
PIIA0295E
Connector Terminals
ConditionVoltage (V)
(Approx.)
(+) (-)
M33 7 Ground Pedal front end position 0.6
Pedal back end position 4.5
LIIA0485E

SE-60
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 QX56
2. CHECK HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit and steering wheel tilt sensor.
2. Check continuity between automatic drive positioner connector M33, M34 terminals 7, 33, 41 and steering wheel tilt sensor con-
nector M69 terminals 2, 3, 4.
3. Check continuity between automatic drive positioner control unit connectors M33, M34 terminals 7, 33, 41 and ground.
OK or NG
OK >> Replace steering wheel tilt motor. Refer to PS-9, "TILT
MOTOR AND TILT SENSOR" .
NG >> Repair or replace harness. 7 - 3 : Continuity should exist.
33 - 2 : Continuity should exist.
41 - 4 : Continuity should exist.
7 - Ground : Continuity should not exist.
33 - Ground : Continuity should not exist.
41 - Ground : Continuity should not exist.
LIIA1432E

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3. CHECK PARK POSITION SWITCH
Check continuity between A/T device (park position switch) terminals
as follows.
OK or NG
OK >> A/T device is OK.
NG >> Replace A/T device.
Steering Wheel Tilt Switch Circuit InspectionEIS004YK
1. CHECK FUNCTION
With CONSULT-II
With “TILT SW-UP, TILT SW-DOWN ” on the DATA MONITOR, oper-
ate the ADP steering wheel tilt switch to check ON/OFF operation.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner control unit connector and ground.
OK or NG
OK >> ADP steering wheel tilt switch circuit is OK.
NG >> GO TO 2.
Terminals ConditionContinuity
56 P position
No
Other than P position Yes
LIIA1491E
Monitor item [OPERATION or
UNIT] Contents
TILT SW-UP “ON/OFF ”Operation (ON)/open (OFF) status
judged from the tilt switch (FR) signal is
displayed.
TILT SW-DOWN “ON/OFF ”Operation (ON)/open (OFF) status
judged from the tilt switch (RR) signal is
displayed.
PIIA0315E
Connector
Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M33 1
Ground Tilt switch ON (UP operation) 0
Other than above
5
17 Tilt switch ON (DOWN opera-
tion)
0
Other than above 5
LIIA0491E