steering INFINITI QX56 2009 Factory Owner's Manual

ADP-26
< FUNCTION DIAGNOSIS >
AUTOMATIC DRIVE POSITIONER SYSTEM
ENTRY ASSIST FUNCTION : Component Parts Location
INFOID:0000000004055688
Order Input Output Control unit condition 1 Door switch/Ignition
switch —
Driver seat control unit receives the signals of ignition switch signal
and front door switch from BCM via CAN communication.
2 — Motors (sliding, tilt) Driver seat control unit operates the sliding motor when the operating
conditions are satisfied. Driver seat control unit then requests the op-
eration of the tilt motor to the automatic drive positioner control unit
via UART communication. The automatic drive positioner control unit
operates the motor for a constant amount.
Sensors (sliding, tilt) — Sensors monitor the operating positions of seat and steering wheel
and then stops the operation of each motor when each part reaches
the recorded address.
ALJIA0347ZZ
1. A. Automatic drive positioner control
unit M33, M34
B. Pedal adjustin g motor assembly
E109, E110 2. A. Steering column
B. Key switch and ignition knob
switch M12
C. BCM M18, M19, M20 (view with
instrument panel removed) 3. A. Door mirror remo
te control switch
D10
B. Seat memory switch D5
4. Pedal adjusting switch M96 5 . A. Door mirrror LH D4, RH D107
B. Front door switch LH B 6. A. A/T selector lever
B. A/T shift selector (park position
switch) M203
7. A. Sliding motor LH B204 (driver seat
view), reclining motor LH B205, lift-
ing motor (front) B2 06, lifting motor
(rear) B207
B. Driver seat control unit B202,
B203
C. Power seat switch LH B208 8. A. ADP steering switch M16
B. Tilt sensor M85 and tilt motor M86
Revision: December 20092009 QX56

AUTOMATIC DRIVE POSITIONER SYSTEMADP-27
< FUNCTION DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
ENTRY ASSIST FUNCTION : Component DescriptionINFOID:0000000003775513
CONTROL UNITS
INPUT PARTS
Switches
Sensors
OUTPUT PARTS
Item Function
Driver seat control unit According to the ignition signal and front door switch LH signal from BCM,
 Operates the seat sliding motor for a constant amount.
 Driver seat control unit then requests the operation of the tilt motor to the auto-
matic drive positioner control unit via UART communication.
Automatic drive positioner control unit Operates the tilt motor for a constant amount.
BCM Recognizes the following status and transmits it to the driver seat control unit via
CAN communication.
 Front door LH: OPEN/CLOSE
 Ignition switch position: ACC/ON
Item Function
Front door switch LH Detect front door LH open/close status.
Item Function
Sliding sensor Detect the front/rear position of seat.
Tilt sensor Detect the up/down position of steering wheel.
Item Function
Sliding motor Slide the seat forward/backward.
Tilt motor Moves the steering wheel upward/downward.
Revision: December 20092009 QX56

DIAGNOSIS SYSTEM (DRIVER SEAT C/U)ADP-29
< FUNCTION DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
ACTIVE TEST
CAUTION:
When driving vehicle, do not perform active test.
MIR CHNG SW–R “ON/OFF” ××ON/OFF status judged from the door mirror remote control
switch (switching to right) signal.
MIR CHNG SW–L “ON/OFF” ××ON/OFF status judged from the door mirror remote control
switch (switching to left) signal.
TILT SW-UP “ON/OFF” ××ON/OFF status judged from the ADP steering switch (UP)
signal.
TILT SW-DOWN “ON/OFF” ××ON/OFF status judged from the ADP steering switch
(DOWN) signal.
PEDAL SW-FR “ON/OFF” ××ON/OFF status judged from the pedal adjusting switch (for-
ward) signal.
PEDAL SW-RR “ON/OFF” ××ON/OFF status judged from the pedal adjusting switch
(backward) signal.
DETENT SW “ON/OFF” ××The selector lever position “OFF (P position) / ON (other
than P position)” judged from the detention switch signal.
STARTER SW “ON/OFF” ××Ignition key switch ON (START, ON) /OFF (ACC, OFF) sta-
tus judged from the ignition switch signal.
SLIDE PULSE — – ×Value (32768) when battery connections are standard. If it
moves backward, the value increases. If it moves forward,
the value decreases.
RECLN PULSE — – ×Value (32768) when battery connections are standard. If it
moves backward, the value increases. If it moves forward,
the value decreases.
LIFT FR PULSE — – ×Value (32768) when battery connections are standard. If it
moves DOWN, the value increases. If it moves UP, the val-
ue decreases.
LIFT RR PULSE — – ×Value (32768) when battery connections are standard. If it
moves DOWN, the value increases. If it moves UP, the val-
ue decreases.
MIR/SEN RH U–D “V” – ×Voltage input from door mirror sensor (passenger side) up/
down is displayed.
MIR/SEN RH R–L “V” – ×Voltage input from door mirror sensor (passenger side) left/
right is displayed.
MIR/SENLHU–D “V” – ×Voltage input from door mirror
sensor (driver side) up/down
is displayed.
MIR/SENLHR–L “V” – ×Voltage input from door mirror sensor (driver side) left/right
is displayed.
PEDAL SEN “V” – ×Pedal position (voltage) judged from the pedal adjusting
sensor signal is displayed.
Monitor Item Unit
Main
Signals Selection
From
Menu Contents
Test item Description
SEAT SLIDE Activates/deactivates the sliding motor.
SEAT RECLINING Activates/deactivates the reclining motor.
SEAT LIFTER FR Activates/deactivates the lifting motor (front).
SEAT LIFTER RR Activates/deactivates the lifting motor (rear).
ADJ PEDAL MOTOR Activates/deactivates the pedal adjusting motor.
TILT MOTOR Activates/deactivates the tilt motor.
MIRROR MOTOR RH Activates/deactivates the mirror motor (passenger side).
Revision: December 20092009 QX56

ADP-38
< COMPONENT DIAGNOSIS >
B2118 TILT SENSOR
B2118 TILT SENSOR
DescriptionINFOID:0000000003775535
 The tilt sensor is installed to the steering column assembly.
 The resistance of tilt sensor is changed according to the up/down position of steering column.
 The terminal voltage of automatic drive positioner c ontrol unit will be changed according to a change of tilt
sensor resistance. Automatic drive positioner contro l unit calculates the tilt position from the voltage.
DTC LogicINFOID:0000000003775536
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2. STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES >> Perform diagnosis procedure. Refer to ADP-38, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000003775537
1. CHECK TILT SENSOR SIGNAL
1. Turn ignition switch ON.
2. Select “TILT SEN” in “Data m onitor” mode with CONSULT-III.
3. Check tilt sensor signal under the following condition.
Is the value normal?
YES >> GO TO 4
NO >> GO TO 2
2. CHECK FUNCTION
DTC No. Trouble diagnosis
name DTC detecting condition Possible cause
B2118 TILT SENSOR The input voltage of tilt sensor is 0.1V or less or 4.9V
or more.  Harness and connectors
(Tilt sensor circuit is opened/
shorted, tilt sensor power supply
circuit is opened/shorted.)
 Tilt sensor
Monitor item Condition Value
TILT SEN Tilt position To p 2 V
Bottom 4 V
Revision: December 20092009 QX56

TILT SWITCHADP-57
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
TILT SWITCH
DescriptionINFOID:0000000003775569
ADP steering switch is equipped to the steering column. The operation signal is input to the automatic drive
positioner control unit when the ADP steering switch is operated.
Component Function CheckINFOID:0000000003775570
1. CHECK FUNCTION
1. Select “TILT SW-UP”, “TILT SW-DN” in “Data monitor” mode with CONSULT-III.
2. Check tilt switch signal under the following conditions.
Is the indication normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-57, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000003775571
1. CHECK ADP STEERING SWITCH SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner control unit
connector and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 2
2. CHECK ADP STEERING SWITCH HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit and ADP steering switch.
2. Check continuity between automat ic drive positioner control unit
connector M33 terminals 1, 17 and ADP steering switch connec-
tor M16 terminals 2, 3.
3. Check continuity between automat ic drive positioner control unit
connector M33 terminals 1, 17 and ground.
Monitor item Condition Status
TILT SW-UP Tilt switch (up) Operate ON
Release OFF
TILT SW-DN Tilt switch (down) Operate ON
Release OFF
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M33 1
Ground ADP steering switch ON (UP
operation)
0
Other than above 5
17 ADP steering switch ON
(DOWN operation)
0
Other than above 5
LIIA0491E
1 - 2 : Continuity should exist.
17 - 3 : Continuity should exist.
LIIA1434E
Revision: December 20092009 QX56

ADP-58
< COMPONENT DIAGNOSIS >
TILT SWITCH
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK ADP STEERING SWITCH GROUND CIRCUIT
Check continuity between ADP steering switch connector M16 termi-
nal 1 and ground.
Is the inspection result normal?
YES >> Check the condition of the harness and connector.
NO >> Replace or replace harness.
4. CHECK TILT SWITCH
Refer to ADP-58, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 5
NO >> Replace ADP steering switch. Refer to ADP-170, "Removal and Installation"
.
5. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace automatic drive posit ioner control unit. Refer to ADP-166, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Component InspectionINFOID:0000000003775572
1. CHECK ADP STEERING WHEEL TILT SWITCH
Check continuity between ADP steering switch terminals as follows.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace ADP steering switch. Refer to ADP-170,
"Removal and Installation".
1 - Ground : Continuity should not exist.
17 - Ground : Continuity should not exist.
1 - Ground : Continuity should exist.
LIIA0490E
Terminals Condition Continuity
2 1ADP steering switch ON (UP operation) Yes
Other than above No
3 ADP steering switch ON (DOWN operation) Yes
Other than above No
LIIA1435E
Revision: December 20092009 QX56

ADP-82
< COMPONENT DIAGNOSIS >
TILT SENSOR
TILT SENSOR
DescriptionINFOID:0000000003775609
 The tilt sensor is installed to the steering column assembly.
 The resistance of tilt sensor is changed according to the up/down position of steering column.
 The terminal voltage of automatic drive positioner c ontrol unit will be changed according to a change of tilt
sensor resistance. Automatic drive positioner contro l unit calculates the tilt position from the voltage.
Component Function CheckINFOID:0000000003775610
1. CHECK FUNCTION
1. Select “TILT SEN” in “Data monitor” mode with CONSULT-III.
2. Check the tilt sensor signal under the following condition.
Is the indication normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-82, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000003775611
1. CHECK TILT SENSOR SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner connector and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> GO TO 2
2. CHECK HARNESS CONTINUITY
Monitor item Condition Value
TILT SEN Tilt position Change between
1.2 V (Close to top)
3.4 V (Close to bottom)
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M33 7 Ground Tilt top position 2
Tilt bottom position 4
LIIA0485E
Revision: December 20092009 QX56

ADP-98
< COMPONENT DIAGNOSIS >
TILT MOTOR
TILT MOTOR
DescriptionINFOID:0000000003775633
 The tilt motor is installed to the steering column assembly.
 The tilt motor is activated with the automatic drive positioner control unit.
 The steering column is tilted upward/downward by changing the rotation direction of tilt motor.
Component Function CheckINFOID:0000000003775634
1. CHECK FUNCTION
1. Select “TILT MOTOR” in “Act ive test” mode with CONSULT-III.
2. Check the tilt motor operation.
Is the operation of relevant parts normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-98, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000003775635
1. CHECK TILT MOTOR HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and tilt motor assembly.
3. Check continuity between automat ic drive positioner control unit
connector M34 (A) terminals 35, 42 and tilt motor assembly con-
nector M86 (B) terminals 1, 5.
4. Check continuity between automat ic drive positioner control unit
connector M34 (A) terminals 35, 42 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive posit ioner control unit and tilt motor
assembly.
2. Check voltage between automatic drive positioner control unit connector and ground.
Test item Description
TILT MOTOR OFF
Steering tilt Sto p
UP Upward
DWN Downward
35 - 1 : Continuity should exist.
42 - 5 : Continuity should exist.
35 - Ground : Continuity should not exist.
42 - Ground : Continuity should not exist.
ALJIA0293ZZ
LIIA0482E
Revision: December 20092009 QX56

TILT MOTORADP-99
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
Is the inspection result normal?
YES >> Replace tilt motor assembly. Refer to ST-19, "Removal and Installation".
NO >> GO TO 3
3. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace automatic drive posit ioner control unit. Refer to ADP-166, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M34 35
Ground ADP steering switch ON
(UP operation)
Battery voltage
Other than above 0
42 ADP steering switch ON
(DOWN operation)
Battery voltage
Other than above 0
Revision: December 20092009 QX56

ADP-128
< ECU DIAGNOSIS >
AUTOMATIC DRIVE POSITIONER CONTROL UNIT
AUTOMATIC DRIVE POSITIONER CONTROL UNIT
Reference ValueINFOID:0000000003775651
TERMINAL LAYOUT
PHYSICAL VALUES
LIIA2449E
Te r m i n a l Wire Col-
or Item Condition Voltage (V)
(Approx.)
1 W/G ADP steering switch TILT UP ADP steering switch in UP position 0
Other than above 5
2 LG Changeover switch RH signal Changeover switch in RH position 0
Other than above 5
3 Y/B Mirror switch UP signal Mirror switch in UP position 0
Other than above 5
4 V/W Mirror switch LEFT signal Mirror switch in LEFT position 0
Other than above 5
5R/B Mirror sensor (
RH vertical) sig-
nal Mirror motor RH is operated UP or
DOWN Changes between 3.4 (close to
peak) 0.6 (close to valley)
6L/Y Mirror sensor (L
H vertical) sig-
nal Mirror motor LH is operated UP or
DOWN Changes between 3.4 (close to
peak) 0.6 (close to valley)
7 Y/BR Tilt sensor input Tilt position TOP 2
Tilt position BOTTOM 4
8 BR/Y Pedal sensor input signal Pedal 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
PIIA4813E
Revision: December 20092009 QX56