2004 INFINITI QX56 seat memory

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 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 signalMemory switch 1 ON 0
Memory switch 1 OFF 5
10 L UART LINE (TX)Pedal adjusting switch ON (FOR-
WARD or BACKWARD operation)
12 PSeat memory switch indictor 1
signalMemory switch 1 ON 0
Memory switch 1 OFF Battery voltage
13 Y/GSeat memory switch indictor 2
signalMemory switch 2 ON 0
Memory switch 2 OFF Battery voltage
14 GR/R Mirror motor RH UP signalMirror motor RH is operated UP 1.5 - Battery voltage
Other than above 0
15 V/R Mirror motor RH LEFT signalMirror motor RH is operated LEFT 1.5 - Battery voltage
Other than above 0
16 OMirror motor LH DOWN signalMirror motor LH is operated DOWN 1.5 - Battery voltage
Other than above 0
Mirror motor LH RIGHT signalMirror motor LH is operated RIGHT 1.5 - Battery voltage
Other than above 0
17 G/BADP steering switch TILT
DOWNADP steering switch in DOWN posi-
tion0
Other than above 5
18 BR/W Changeover switch LH signalChangeover switch in LH position 0
Other than above 5
19 SB Mirror switch DOWN signalMirror switch in DOWN position 0
Other than above 5
20 GR Mirror switch RIGHT signalMirror switch in RIGHT position 0
Other than above 5
21 L/WMirror sensor (RH horizontal)
signalMirror motor RH is operated LEFT
or RIGHTChanges between 3.4 (close to left
edge) 0.6 (close to right edge)
22 GMirror sensor (LH horizontal)
signalMirror motor LH is operated LEFT
or RIGHTChanges between 3.4 (close to left
edge) 0.6 (close to right edge)
24 G/O Seat memory set switch signalSet switch 1 ON 0
Set switch 1 OFF 5
25 P/L Seat memory switch 2 signalMemory switch 2 ON 0
Memory switch 2 OFF 5
26 W UART LINE (RX)Pedal adjusting switch ON (FOR-
WARD or BACKWARD operation) TERMINAL WIRE
COLORITEM CONDITIONVOLTAGE (V)
(Approx.)
PIIA4813E
PIIA4814E

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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-41
SEAT SLIDE
[B2112]Seat slide motorWhen 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-43
SEAT RECLINING
[B2113]Seat reclining motorWhen 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-44
SEAT LIFTER FR
[B2114]Seat lifting FR motorWhen 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-46
SEAT LIFTER RR
[B2115]Seat lifting RR motorWhen 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-47
STEERING TILT
[B2116]Steering tilt motorWhen 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-53
TILT SENSOR
[B2118]Steering tilt sensorWhen steering tilt sensor detects 0.5V or lower, or 4.5V or higher, for
0.5 seconds or more.SE-64
ADJ PEDAL
MOTOR
[B2117]Pedal adjust motorWhen 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-49
ADJ PEDAL SEN-
SOR
[B2120]Pedal adjust sensorWhen pedal adjust sensor detects 0.5V or lower, or 4.5V or higher,
for 0.5 seconds or more.SE-59
DETENT SW
[B2126]Park SWWith the A/T shift lever in P position (Park switch OFF), if the vehicle
speed of 7 km/h (4 MPH) or higher was input the park switch input
system is judged malfunctioning.SE-81
UART COMM
[B2128]UART communica-
tionMalfunction is detected in UART communication.SE-85

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
DATA MONITOR
CAN DIAGNOSIS SUPPORT MONITOR
SELECTIOM FROM MEMU
Monitor item [UNIT] Contents
CAN COMM [OK/NG] When CAN communication circuit is malfunctioning, it displays “NG”.
CAN CIRC 1 [OK/UNKWN]
Displays [OK/UNKWN] condition of the CAN communication judged by each sig-
nal input. CAN CIRC 2 [OK/UNKWN]
CAN CIRC 3 [OK/UNKWN]
CAN CIRC 4 [OK/UNKWN]
Monitor item [OPERATION or UNIT] Contents
SLIDE SW–FR “ON/OFF” ON/OFF status judged from the sliding switch (FR) signal is displayed.
SLIDE SW–RR “ON/OFF” ON/OFF status judged from the sliding switch (RR) signal is displayed.
RECLN SW–FR “ON/OFF” ON/OFF status judged from the reclining switch (FR) signal is displayed.
RECLN SW–RR “ON/OFF” ON/OFF status judged from the reclining switch (RR) signal is displayed.
LIFT FR SW–UP “ON/OFF” ON/OFF status judged from the FR lifter switch (UP) signal is displayed.
LIFT FR SW–DN “ON/OFF” ON/OFF status judged from the FR lifter switch (DOWN) signal is displayed.
LIFT RR SW–UP “ON/OFF” ON/OFF status judged from the RR lifter switch (UP) signal is displayed.
LIFT RR SW–DN “ON/OFF” ON/OFF status judged from the RR lifter switch (DOWN) signal is displayed.
MIR CON SW–UP “ON/OFF” ON/OFF status judged from the door mirror switch (UP) signal is displayed.
MIR CON SW–DN “ON/OFF” ON/OFF status judged from the door mirror switch (DOWN) signal is displayed.
MIR CON SW–RH “ON/OFF” ON/OFF status judged from the door mirror switch (RIGHT) signal is displayed.
MIR CON SW–LH “ON/OFF” ON/OFF status judged from the door mirror switch (LEFT) signal is displayed.
MIR CHNG SW–R “ON/OFF”ON/OFF status judged from the door mirror switch (switching to RIGHT) signal is
displayed.
MIR CHNG SW–L “ON/OFF”ON/OFF status judged from the door mirror switch (switching to LEFT) signal is
displayed.
SET SW “ON/OFF” ON/OFF status judged from the setting switch signal is displayed.
TILT SW-UP “ON/OFF” ON/OFF status judged from the tilt adjusting switch (UP) signal is displayed.
PEDAL SW-FR “ON/OFF” ON/OFF status judged from the pedal adjusting switch (FR) signal is displayed.
PEDAL SW-RR “ON/OFF” ON/OFF status judged from the pedal adjusting switch (RR) signal is displayed.
MEMORY SW1 “ON/OFF” ON/OFF status judged from the seat memory switch 1 signal is displayed.
MEMORY SW2 “ON/OFF” ON/OFF status judged from the seat memory switch 2 signal is displayed.
DETENT SW “ON/OFF”The selector lever position “OFF (P position) / ON (other than P position)” judged
from the park switch signal is displayed.
STARTER SW “ON/OFF”Ignition key switch ON (START, ON) /OFF (ignition switch IGN, ACC, or OFF)
status judged from the ignition switch signal is displayed.
SLIDE PULSE —Value (32768) when battery connects is as standard. If it moves BACKWARD, the
value increases. If it moves FORWARD, the value decreases.
RECLN PULSE —Value (32768) when battery connects is as standard. If it moves BACKWARD, the
value increases. If it moves FORWARD, the value decreases.
LIFT FR PULSE —Value (32768) when battery connects is as standard. If it moves DOWN, the value
increases. If it moves UP, the value decreases.
LIFT RR PULSE —Value (32768) when battery connects is as standard. If it moves DOWN, the value
increases. If it moves UP, the value decreases.
MIR/SEN RH R–L “V” Voltage output from RH door mirror sensor (LH/RH) is displayed.
MIR/SEN RH U–D “V” Voltage output from RH door mirror sensor (UP/DOWN) is displayed.
MIR/SEN LH R–L “V” Voltage output from LH door mirror sensor (LH/RH) is displayed.

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ACTIVE TEST
CAUTION:
During vehicle driving, do not perform active test.
NOTE:
If active test is performed, reset seat memory and key fob interlock drive positioner after performing work.
DISPLAY ITEM LIST
CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)EIS002YH
1. SELF-DIAGNOSTIC RESULT CHECK
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Connect to CONSULT-II, and select “AUTO DRIVE POS.” on the “SELECT DIAG SYSTEM” screen.
2. Select “SELF-DIAG RESULTS” on "SELECT DIAG MODE" screen.
3. Check display content in self-diagnostic results.
Contents displayed
No malfunction>>Inspection End.
Malfunction in CAN communication system>>After printing the monitor items, go to “CAN System”. Refer to
LAN-3, "
Precautions When Using CONSULT-II" .
Symptom ChartEIS002YI
MIR/SEN LH U–D “V” Voltage output from LH door mirror sensor (UP/DOWN) is displayed.
PEDAL SEN “V”The pedal position (voltage) judged from the pedal adjust sensor signal is dis-
played. Monitor item [OPERATION or UNIT] Contents
Test item Description
SEAT SLIDE The sliding motor is activated by receiving the drive signal.
SEAT RECLINING The reclining motor is activated by receiving the drive signal.
SEAT LIFTER FR The lifting motor (front) is activated by receiving the drive signal.
SEAT LIFTER RR The lifting motor (rear) is activated by receiving the drive signal.
PEDAL MOTOR The pedal adjust motor is activated by receiving the drive signal.
MEMORY SW INDCTR The memory switch indicator is lit by receiving the drive signal.
MIRROR MOTOR RHThe RH mirror motor moves the mirror UP/DOWN and LEFT/RIGHT by receiving the drive
signal.
MIRROR MOTOR LHThe LH mirror motor moves the mirror UP/DOWN and LEFT/RIGHT by receiving the drive
signal.
CONSULT-II display code Diagnosis item
U1000INITIAL DIAG
TRANSMIT DIAG
BSM
METER/M&A
ECM
SymptomDiagnoses / service procedure Refer to
page
Only setting change function cannot be set with display.1. Preliminary checkSE-34
2. CAN communication inspection using CONSULT-II (self-
diagnosis)SE-41
3. If the above systems are normal, check display systemAV- 6 1

SE-42
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
A part of seat system does not operate (both automati-
cally and manually).1. Sliding motor circuit inspection SE-43
2. Reclining motor circuit inspection SE-44
3. Lifting motor (front) circuit inspectionSE-46
4. Lifting motor (rear) circuit inspectionSE-47
5. If the above systems are normal, replace the driver seat
control unitSE-11
A part of pedal adjust and door mirror does not operate
(both automatically and manually).1. Pedal adjusting motor circuit inspectionSE-492. Mirror motor LH circuit check SE-50
3. Mirror motor RH circuit check SE-52
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 inspectionSE-55
2. Reclining sensor circuit inspectionSE-56
3. Lifting sensor (front) circuit inspectionSE-57
4. Lifting sensor (rear) circuit inspectionSE-58
5. If the above systems are normal, replace the driver seat
control unitSE-11
A part of door mirror system does not operate (only
automatic operation).1. Mirror sensor LH circuit checkSE-602. Mirror sensor RH circuit checkSE-62
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. Park switch circuit inspectionSE-81
2. UART communication line circuit inspectionSE-85
3. Pedal adjusting sensor circuit inspectionSE-59
4. Steering wheel tilt sensor circuit inspectionSE-64
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 inspectionSE-66
2. Reclining switch circuit inspectionSE-67
3. Lifting switch (front) circuit inspectionSE-69
4. Lifting switch (rear) circuit inspectionSE-70
5. If the above systems are normal, replace the driver seat
control unitSE-11
A part of pedal adjust and door mirror does not operate
(only manual operation).1. Pedal adjusting switch circuit inspection SE-72
2. Door mirror switch (change over switch) circuit inspection SE-74
3. Door mirror switch (mirror switch) switching circuit
inspection SE-75
4. If the above systems are normal, replace the automatic
drive positioner control unitSE-11
Only memory switch operation.1. Seat memory switch circuit inspectionSE-772. If the above systems are normal, replace the driver seat
control unitSE-11
Seat memory indicator lamps 1 and 2 do not illuminate.1. Seat memory indicator lamp circuit inspectionSE-792. If all the above systems are normal, replace the driver
seat control unit.SE-11
SymptomDiagnoses / service procedure Refer to
page

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2. CHECK DOOR MIRROR SWITCH (CHANGEOVER SWITCH)
Check continuity between door mirror switch as follows.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace door mirror switch.
Seat Memory Switch Circuit InspectionEIS002Z6
1. CHECK FUNCTION
With CONSULT-II
With “SET SW, MEMORY SW1, MEMORY SW2” on the DATA
MONITOR, operate the switch to check ON/OFF operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Seat memory switch circuit is OK.
NG >> GO TO 2.
Te r m i n a l s
Condition Continuity
(+) (–)
5
7Changeover switch RIGHT position Yes
Other than above No
6Changeover switch LEFT position Yes
Other than above No
LIIA1488E
Monitor item [OPERATION or
UNIT]Contents
MEMORY SW1 “ON/OFF”ON/OFF status judged from the seat
memory switch 1 signal is displayed.
MEMORY SW2 “ON/OFF”ON/OFF status judged from the seat
memory switch 2 signal is displayed.
SET SW “ON/OFF”ON/OFF status judged from the setting
switch signal is displayed.
PIIA0309E

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
2. CHECK SEAT MEMORY SWITCH
1. Turn ignition switch OFF.
2. Disconnect seat memory switch.
3. Operate the setting switch and seat memory switch.
4. Check continuity between seat memory switch as follows.
OK or NG
OK >> GO TO 3.
NG >> Replace seat memory switch.
3. CHECK HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit.
2. Check continuity between automatic drive positioner control unit
connector M33 terminals 9, 24, 25 and seat memory switch con-
nector D5 terminals 1, 2, 3.
3. Check continuity between automatic drive positioner control unit
connector M41 terminals 9, 24, 25 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK SEAT MEMORY SWITCH GROUND CIRCUIT
Check continuity between seat memory switch D5 terminal 4 and
ground.
OK or NG
OK >> Replace automatic drive positioner control unit.
NG >> Repair or replace harness.
Terminal
Condition Continuity
(+) (–)
1
4Memory switch 1: ON Yes
Memory switch 1: OFF No
2Memory switch 2: ON Yes
Memory switch 2: OFF No
3Set switch: ON Yes
Set switch: OFF No
LIIA1020E
9 (LG/B) - 1 (LG/B) : Continuity should exist.
24 (G/O) - 3 (G/O) : Continuity should exist.
25 (P/L) - 2 (P/L) : Continuity should exist.
9 (LG/B) - Ground : Continuity should not exist.
24 (G/O) - Ground : Continuity should not exist.
25 (P/L) - Ground : Continuity should not exist.
PIIA4576E
4 (B) - Ground : Continuity should exist.
PIIA4821E

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Seat Memory Indicator Lamp Circuit InspectionEIS002Z7
1. CHECK FUNCTION
With CONSULT-II
With “MEMORY SW INDCTR” in ACTIVE TEST, check operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Seat memory switch indicator lamp circuit is OK.
NG >> GO TO 2.
2. CHECK SEAT MEMORY SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect seat memory switch.
3. Check voltage between seat memory switch connector D5 ter-
minal 5 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK SEAT MEMORY INDICATOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit.
3. Check continuity between automatic drive positioner control unit
connector M33 terminals 12, 13 and seat memory switch con-
nector D5 terminals 6, 7.
4. Check continuity between automatic drive positioner control unit
connector M33 terminals 12, 13 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
Test item Description
MEMORY SW
INDCTRThe memory switch indicator is lit by receiving the drive signal.
PIIA0319E
5 (Y/R) - Ground : Battery voltage
PIIA4595E
12 (P) - 6 (P) : Continuity should exist.
13 (Y/G) - 7 (Y/G) : Continuity should exist.
12 (P) - Ground : Continuity should not exist.
13 (Y/G) - Ground : Continuity should not exist.
LIIA1022E