2008 INFINITI QX56 remote control

DIAGNOSIS SYSTEM (DRIVER SEAT C/U)ADP-27
< FUNCTION DIAGNOSIS >
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ADP
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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
UnitMain
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: March 2010 2008 QX56

ADP-42
< COMPONENT DIAGNOSIS >
B2128 UART COMMUNICATION LINE
B2128 UART COMMUNICATION LINE
DescriptionINFOID:0000000001735458
Driver seat control unit performs UART communication with the automatic drive positioner control unit using 2
communication lines, TX and RX line. Driver seat cont rol unit receives the operation signals of pedal adjusting
switch, door mirror remote control switch, set switch and memory switch and the position signals of adjustable
pedal sensor and door mirror sensor from the automatic drive positioner control unit and transmits the opera-
tion request signal.
DTC LogicINFOID:0000000001735459
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2. STEP 2
Operate pedal adjusting switch for more than 2 seconds.
>> GO TO 3
3. PROCEDURE 3
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES >> Perform diagnosis procedure. Refer to ADP-42, "DiagnosisProcedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001735460
1. CHECK UART COMMUNICA TION LINE CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat contro l unit and automatic drive posi-
tioner control unit.
3. Check continuity between driver seat control unit harness con- nector and automatic drive positioner control unit harness con-
nector.
4. Check continuity between driver seat control unit harness connector and ground.
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
B2128 UART COMM The communication between driver seat control unit
and automatic drive positioner control unit is interrupt-
ed for a period of time. • UART communication line
(UART communication line is
open or shorted)
• Driver seat control unit
• Automatic drive positioner control unit
Driver seat control unit connector Te r m i n a lAutomatic drive positioner
control unit connector Terminal Continuity
B202 1
M33 10
Ye s
17 26
PIIA4598E
Revision: March 2010 2008 QX56

DOOR MIRROR REMOTE CONTROL SWITCHADP-61
< COMPONENT DIAGNOSIS >
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DOOR MIRROR REMOTE CONTROL SWITCH
CHANGEOVER SWITCH
CHANGEOVER SWITCH : DescriptionINFOID:0000000001735491
Changeover switch is integrated into door mirror remote control switch.
Changeover switch has three positions (L, N and R).
It changes door mirror motor operation by transmitting control signal to automatic drive positioner control unit.
CHANGEOVER SWITCH : Comp onent Function CheckINFOID:0000000001735492
1. CHECK CHANGEOVER SWITCH FUNCTION
Check the operation on “MIR CHNG SW-R” or “MIR CHNG SW-L” in “DATA MONITOR” mode with CON-
SULT-III.
Refer to ADP-26, "
CONSULT-III Function".
Is the inspection result normal?
YES >> Changeover switch function is OK.
NO >> Refer to ADP-61, "
CHANGEOVER SWITCH : Diagnosis Procedure".
CHANGEOVER SWITCH : Diagnosis ProcedureINFOID:0000000001735493
1. CHECK CHANGEOVER SWITCH SIGNAL
1. Turn ignition switch ON.
2. Check voltage between automatic drive positioner control unit
connector and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> GO TO 2
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and door mir- ror remote control switch.
3. Check continuity between automat ic drive positioner control unit
connector and door mirror remote control switch connector.
4. Check continuity between automatic driv e positioner control unit connector and ground.
Te r m i n a l s
Change over switch condition Voltage (V)
(Approx.)
(+)
(-)
Automatic drive
positioner control unit connector Terminal
M33 2
Ground RIGHT
0
Other than above 5
18 LEFT
0
Other than above 5
PIIA4767E
Automatic drive
positioner control unit connector Te r m i n a lDoor mirror re-
mote control
switch connector Terminal Continuity
M33 (A) 2
D10 (B) 11
Ye s
18 10
ALJIA0201ZZ
Revision: March 2010 2008 QX56

ADP-62
< COMPONENT DIAGNOSIS >
DOOR MIRROR REMOTE CONTROL SWITCH
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK DOOR MIRROR REMOTE CONTROL SWITCH GROUND CIRCUIT
Check continuity between door mirro r remote control switch connec-
tor and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect automatic drive positioner control unit.
2. Turn ignition switch ON.
3. Check voltage between automatic drive positioner control unit connector and ground.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace automatic drive positioner control unit.
5. CHECK CHANGEOVER SWITCH
Check changeover switch.
Refer to ADP-62, "
CHANGEOVER SWITCH : Component Inspection".
Is the inspection result normal?
YES >> Refer to GI-38, "Intermittent Incident".
NO >> Replace door mirror remote control switch.
6. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace automatic drive positioner control unit.
NO >> Repair or replace the malfunctioning parts.
CHANGEOVER SWITCH : Component InspectionINFOID:0000000001735494
1. CHECK CHANGEOVER SWITCH
Automatic drive positioner control
unit connector Te r m i n a l
GroundContinuity
M33 (A) 2
No
18
Door mirror remote control switch
connector Terminal
GroundContinuity
D10 7 Yes
ALJIA0189ZZ
Te r m i n a l s
Voltage (V)(Approx.)
(+)
(-)
Automatic drive positioner
control unit connector Te r m i n a l
M33 2
Ground 5
18
PIIA4767E
Revision: March 2010 2008 QX56

DOOR MIRROR REMOTE CONTROL SWITCHADP-63
< COMPONENT DIAGNOSIS >
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Check door mirror remote control switch.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace door mirror remote control switch.
MIRROR SWITCH
MIRROR SWITCH : DescriptionINFOID:0000000001735495
It operates angle of the door mirror face.
It transmits mirror face adjust operation to automatic drive positioner control unit.
MIRROR SWITCH : Component Function CheckINFOID:0000000001735496
1. CHECK MIRROR SWITCH FUNCTION
Check the operation on “MIR CON SW–UP/DN” and “M IR CON SW–RH/LH” in “DATA MONITOR” mode
with CONSULT-III.
Refer to ADP-26, "
CONSULT-III Function".
Is the inspection result normal?
YES >> Mirror switch function is OK.
NO >> Refer to ADP-63, "
MIRROR SWITCH : Diagnosis Procedure".
MIRROR SWITCH : Diagnosis ProcedureINFOID:0000000001735497
1. CHECK MIRROR SWITCH FUNCTION
1. Turn ignition switch ON.
2. Check voltage between automatic drive positioner control unit
connector and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> GO TO 2
2. CHECK HARNESS CONTINUITY
Te r m i n a l Change over switch
condition Continuity
Door mirror remote control switch
10 7LEFT
Yes
Other than above No
11 RIGHT
Yes
Other than above No
ALJIA0272ZZ
Te r m i n a l s
Mirror switchCondition Voltage (V)
(Approx.)
(+)
(–)
Automatic drive
positioner control unit connector Te r m i n a l
M33 3
Ground UP
0
Other than above 5
4 LEFT
0
Other than above 5
19 DOWN
0
Other than above 5
20 RIGHT
0
Other than above 5
PIIA4771E
Revision: March 2010 2008 QX56

ADP-64
< COMPONENT DIAGNOSIS >
DOOR MIRROR REMOTE CONTROL SWITCH
1. Turn ignition switch OFF.
2. Disconnect automatic drive posit ioner control unit and door mir-
ror remote control switch.
3. Check continuity between automat ic drive positioner control unit
connector and door mirror remote control switch connector.
4. Check continuity between automatic driv e positioner control unit connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK DOOR MIRROR REMOTE CONTROL SWITCH GROUND CIRCUIT
Check continuity between door mirro r remote control switch connec-
tor and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect automatic drive positioner control unit.
2. Turn ignition switch ON.
3. Check voltage between automatic drive positioner control unit and ground.
Is the inspection result normal?
Automatic drive
positioner control unit connector Te r m i n a lDoor mirror remote
control switch con- nector Terminal Continuity
M33 (A) 3
D10 (B) 15
Ye s
41
3
19 12
20 4
Automatic drive positioner control unit connector Te r m i n a l
GroundContinuity
M33 (A) 3
No
4
19
20
ALJIA0191ZZ
Door mirror remote control switch connector Te r m i n a l
Ground Continuity
D10 7 Yes
ALJIA0189ZZ
Te r m i n a l s
Voltage (V)(Approx.)
(+)
(-)
Automatic drive positioner
control unit connector Te r m i n a l
M33 3
Ground 5
4
19
20
PIIA4771E
Revision: March 2010 2008 QX56

DOOR MIRROR REMOTE CONTROL SWITCHADP-65
< COMPONENT DIAGNOSIS >
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YES >> GO TO 5
NO >> Replace automatic drive positioner control unit.
5. CHECK MIRROR SWITCH
Check mirror switch.
Refer to ADP-65, "
MIRROR SWITCH : Component Inspection".
Is the inspection result normal?
YES >> Refer to GI-38, "Intermittent Incident".
NO >> Replace door mirror remote control switch.
6. CHECK INTERMITTENT INCIDENT
Check intermittent incident.
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace automatic driv e positioner control unit.
NO >> Repair or replace the malfunctioning parts.
MIRROR SWITCH : Component InspectionINFOID:0000000001735498
1.CHECK MIRROR SWITCH
Check door mirror remote control switch.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace door mirror remote control switch.
Te r m i n a l Mirror switch condition Continuity
Door mirror remote
control switch
4
7RIGHT Yes
Other than above
No
13 LEFT
Yes
Other than above No
15 UP
Yes
Other than above No
12 DOWN
Yes
Other than above No
AWJIA0239ZZ
Revision: March 2010 2008 QX56

ADP-144
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
Te r m i n a lWire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
1BR/W Ignition keyhole illumi-
nation Output OFFDoor is locked (SW OFF)
Battery voltage
Door is unlocked (SW ON) 0V
2SB Combination switch
input 5 Input ON
Lighting, turn, wiper OFF
Wiper dial position 4
3G/Y Combination switch
input 4 Input ONLighting, turn, wiper OFF
Wiper dial position 4
4Y Combination switch
input 3 Input ON
Lighting, turn, wiper OFF
Wiper dial position 4
5G/B Combination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6V Combination switch
input 1
9GR/R Rear window defogger
switch
Input ONRear window defogger switch
ON
0V
Rear window defogger switch
OFF 5V
10 G Hazard lamp flash Input OFF ON (opening or closing)
0V
OFF (other than above) Battery voltage
11 O Ignition switch (ACC
or ON)
InputACC or
ON Ignition switch ACC or ON
Battery voltage
12 R/L Front door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
13 GR Rear door switch RH Input OFF ON (open)
0V
OFF (closed) Battery voltage
15 L/W Tire pressure warning
check connector
Input OFF
—5V
18 P Remote keyless entry
receiver and optical
sensor (ground)
Output OFF
—0V
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
Revision: March 2010 2008 QX56