2009 INFINITI QX56 seat memory

RECLINING SENSORADP-77
< COMPONENT DIAGNOSIS >
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ADP
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1. Disconnect driver seat control unit and reclining motor LH.
2. Check continuity between driver seat control unit harness con-
nector and reclining motor LH harness connector.
3. Check continuity between driver seat control unit harness con-
nector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK SEAT OPERATION
1. Connect driver seat control unit and reclining motor LH.
2. Check seat operation (except reclin ing operation) with memory function.
Is the operation normal?
YES >> Replace reclining motor LH. (Built in seatback assembly). Refer to SE-68, "Disassembly and
Assembly".
NO >> Replace driver seat control unit. Refer to ADP-165, "Removal and Installation"
.
4. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace driver seat control unit. Refer to ADP-165, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a l
Reclining motor
connector Terminal Continuity
B202 (A) 9
B205 (B) 1
Ye s
31 4
Driver seat control unit connector Te r m i n a l
GroundContinuity
B202 (A) 9
No
31
ALJIA0318ZZ
Revision: December 20092009 QX56

LIFTING SENSOR (FRONT)ADP-79
< COMPONENT DIAGNOSIS >
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M A
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ADP
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1. Disconnect driver seat control unit and lifting motor (front).
2. Check continuity between driver seat control unit harness con-
nector and lifting motor (front) harness connector.
3. Check continuity between driver seat control unit harness con-
nector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK SEAT OPERATION
1. Connect driver seat control unit and lifting motor (front).
2. Check seat operation [except lifting (f ront) operation] with memory function.
Is the operation normal?
YES >> Replace lifting motor (front). (Built in power seat frame assembly). Refer to SE-68, "Disassembly
and Assembly".
NO >> Replace driver seat control unit. Refer to ADP-165, "Removal and Installation"
.
4. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace driver seat control unit. Refer to ADP-165, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a lLifting motor
(front) connector Terminal Continuity
B202 (A) 16
B206 (B) 3
Ye s
25 4
31 2
Driver seat control unit connector Te r m i n a l
Ground Continuity
B202 (A) 16
No
25
31
ALJIA0319ZZ
Revision: December 20092009 QX56

LIFTING SENSOR (REAR)ADP-81
< COMPONENT DIAGNOSIS >
C
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G H
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M A
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ADP
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1. Disconnect driver seat control unit and lifting motor (rear).
2. Check the continuity between driver seat control unit harness connector and lifting motor (rear) harness connector.
3. Check the continuity between driver seat control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK SEAT OPERATION
1. Connect driver seat control unit and lifting motor (rear).
2. Check the seat operation [except lifting (rear) operation] with memory function.
Is the operation normal?
YES >> Replace lifting motor (rear). (Built in power seat frame assembly). Refer to SE-68, "Disassembly
and Assembly".
NO >> Replace driver seat control unit. Refer to ADP-165, "Removal and Installation"
.
4. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace driver seat control unit. Refer to ADP-165, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a l
Lifting motor (rear)
connector Terminal Continuity
B202 (A) 10
B207 (B) 4
Ye s
16 3
31 2
Driver seat control unit connector Te r m i n a l
Ground Continuity
B202 (A) 10
No
16
31
ALJIA0320ZZ
Revision: December 20092009 QX56

MIRROR SENSORADP-87
< COMPONENT DIAGNOSIS >
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ADP
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1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and door mir- ror LH.
3. Check continuity between automat ic drive positioner control unit
harness connector and door mirror LH harness connector.
4. Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK DOOR MIRROR LH SENSOR CIRCUIT 2
1. Check continuity between automat ic drive positioner control unit
harness connector and door mirror LH harness connector.
2. Check continuity between automat ic drive positioner control unit
harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK PEDAL ADJUSTING OPERATION
1. Connect driver seat control unit and door mirror LH.
2. Turn ignition switch ON.
3. Check pedal adjusting operation with memory function.
Is the operation normal?
YES >> Replace door mirror actuator LH. Refer to MIR-14, "Mirror Actuator".
NO >> Replace automatic drive positioner control unit. Refer to ADP-166, "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.
Automatic drive
positioner control unit connector Te r m i n a l
Door mirror LH
connector Terminal Continuity
M33 6
D4 7
Ye s
22 8
Automatic drive positioner control unit connector Te r m i n a l
Ground Continuity
M33 6
No
22
LIIA1484E
Automatic drive
positioner control unit connector Te r m i n a l
Door mirror LH
connector Terminal Continuity
M34 33
D4 5
Ye s
41 6
Automatic drive positioner control unit connector Te r m i n a l
GroundContinuity
M34 33
No
41
LIIA1483E
Revision: December 20092009 QX56

MIRROR SENSORADP-89
< COMPONENT DIAGNOSIS >
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M A
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ADP
N
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1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and door mir- ror RH.
3. Check continuity between automat ic drive positioner control unit
harness connector and door mirror RH harness connector.
4. Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK DOOR MIRROR RH SENSOR POWER SUPPLY CIRCUIT
1. Check continuity between automat ic drive positioner control unit
harness connector and door mirror RH harness connector.
2. Check continuity between automat ic drive positioner control unit
harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK PEDAL ADJUSTING OPERATION
1. Connect driver seat control unit and door mirror RH.
2. Turn ignition switch ON.
3. Check pedal adjusting operation with memory function.
Is the operation normal?
YES >> Replace door mirror actuator RH. Refer to MIR-14, "Mirror Actuator".
NO >> Replace automatic drive positioner control unit. Refer to ADP-166, "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.
Automatic drive posi-
tioner control unit connector Te r m i n a l
Door mirror RH
connector Terminal Continuity
M33 5
D107 7
Ye s
21 8
Automatic drive positioner control unit connector Te r m i n a l
GroundContinuity
M33 5
No
21
LIIA1473E
Automatic drive posi-
tioner control unit connector Te r m i n a l
Door mirror RH
connector Terminal Continuity
M34 33
D107 5
Ye s
41 6
Automatic drive positioner control unit connector Te r m i n a l
GroundContinuity
M34 33
No
41
LIIA1486E
Revision: December 20092009 QX56

SEAT MEMORY INDICATOR LAMPADP-105
< COMPONENT DIAGNOSIS >
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SEAT MEMORY INDICATOR LAMP
DescriptionINFOID:0000000003775643
 The seat memory switch is installed on the driver si de door trim. The operation signal is inputted to the auto-
matic drive positioner control unit when the memory switch is operated.
 The status of automatic drive positioner system can be checked according to the illuminating/flashing status.
Component Function CheckINFOID:0000000003775644
1. CHECK FUNCTION
1. Select “MEMORY SW INDCTR” in “Active test” mode with CONSULT-III.
2. Check the memory indicator operation.
Is the operation of relevant parts normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-105, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000003775645
1. CHECK SEAT MEMORY INDICATOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and seat memory switch.
3. Check continuity between automat ic drive positioner control unit
harness connector and seat memo ry switch harness connector.
4. Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2. CHECK MEMORY INDICATOR POWER SUPPLY
Test item Description
MEMORY SW INDCTR OFF
Memory switch indicator OFF
ON-1 Indicator 1: ON
ON-2 Indicator 2: ON
Automatic drive
positioner control
unit connector Te r m i n a l
Seat memory switch
connector Terminal Continuity
M33 12
D5 6
Ye s
13 7
Automatic drive position- er connector Te r m i n a l
GroundContinuity
M33 12
No
13
LIIA1022E
Revision: December 20092009 QX56

ADP-106
< COMPONENT DIAGNOSIS >
SEAT MEMORY INDICATOR LAMP
Check voltage between seat memory switch harness connector and
ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Check the following.Fuse
 Harness for open or short between memory indicator and fuse.
3. CHECK MEMORY INDICATOR
Refer to ADP-106, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace seat memory switch. Refer to ADP-167, "Removal and Installation"
.
4. 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:0000000003775646
1. CHECK SEAT MEMORY INDICATOR
1. Disconnect seat memory switch.
2. Check continuity between seat memory switch terminals.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace seat memory switch. Refer to ADP-167, "Removal and Installation"
.
Seat memory switch
connector Te r m i n a l s
Voltage (V)
(Approx.)
(+) (–)
D5 5 Ground Battery voltage
PIIA4595E
Te r m i n a l Continuity
Seat memory switch
(+) (-) 6 5Yes
7
ALJIA0200ZZ
Revision: December 20092009 QX56

DRIVER SEAT CONTROL UNITADP-107
< ECU DIAGNOSIS >
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ECU DIAGNOSIS
DRIVER SEAT CONTROL UNIT
Reference ValueINFOID:0000000003775647
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III MONITOR ITEM
Monitor Item Condition Value/Status
SET SW Set switch Push ON
Release OFF
MEMORY SW1 Memory switch 1 Push ON
Release OFF
MEMORY SW2 Memory switch 2 Push ON
Release OFF
SLIDE SW–FR Sliding switch (front) Operate ON
Release OFF
SLIDE SW–RR Sliding switch (rear) Operate ON
Release OFF
RECLN SW–FR Reclining switch (front) Operate ON
Release OFF
RECLN SW–RR Reclining switch (rear) Operate ON
Release OFF
LIFT FR SW–UP Lifting switch front (up) Operate ON
Release OFF
LIFT FR SW–DN Lifting switch front (down) Operate ON
Release OFF
LIFT RR SW–UP Lifting switch rear (up) Operate ON
Release OFF
LIFT RR SW–DN Lifting switch rear (down) Operate ON
Release OFF
MIR CON SW–UP Mirror switch Up ON
Other than above OFF
MIR CON SW–DN Mirror switch Down ON
Other than above OFF
MIR CON SW–RH Mirror switch Right ON
Other than above OFF
MIR CON SW–LH Mirror switch Left ON
Other than above OFF
MIR CHNG SW–R Changeover switch Right ON
Other than above OFF
MIR CHNG SW–L Changeover switch Left ON
Other than above OFF
PEDAL SW-FR Pedal adjusting switch Forward ON
Other than above OFF
PEDAL SW-RR Pedal adjusting switch Backward ON
Other than above OFF
Revision: December 20092009 QX56