Ins INFINITI QX56 2004 Factory Service Manual

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
2. CHECK LIFTING SWITCH (REAR) CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and power seat switch LH.
2. Check continuity between driver seat control unit connector P2
terminals 14, 29 and power seat switch connector P8 terminals
2, 8.
3. Check continuity between driver seat control unit connector P2
terminals 14, 29 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK LIFTING SWITCH (REAR)
Check continuity between power seat switch LH as follows.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace power seat switch LH.
Power Seat Switch Ground InspectionEIS002Z1
1. CHECK POWER SEAT SWITCH GROUND CIRCUIT
Check continuity between power seat switch LH connector P8 termi-
nal 3 and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Repair or replace harness.14 (G/W) - 8 (G/W) : Continuity should exist.
29 (R/W) - 2 (R/W) : Continuity should exist.
14 (G/W) - Ground : Continuity should not exist.
29 (R/W) - Ground : Continuity should not exist.
LIIA1131E
Terminals
Condition Continuity
(+) (–)
8
3Lifting switch (rear) ON
(DOWN operation)Ye s
Other than above No
2Lifting switch (rear) ON (UP operation) Yes
Other than above No
LIIA1132E
3 (B) - Ground : Continuity should exist.
LIIA1133E

SE-72
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
Pedal Adjusting Switch Circuit InspectionEIS002Z2
1. CHECK FUNCTION
With CONSULT-II
With “PEDAL SW-FR, PEDAL SW-RR” on the DATA MONITOR,
operate the pedal adjusting switch to check ON/OFF operation.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Pedal adjusting switch circuit is OK.
NG >> GO TO 2.
2. CHECK PEDAL ADJUSTING SWITCH CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and pedal adjusting switch.
2. Check continuity between driver seat control unit connector P2
terminals 15, 30 and pedal adjusting switch connector M96 ter-
minals 2, 3.
3. Check continuity between driver seat control unit connector P2
terminals 15, 30 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
Monitor item [OPERATION or
UNIT]Contents
PEDAL SW–FR “ON/OFF”Operation (ON)/open (OFF) status
judged from the pedal adjusting switch
(FR) signal is displayed.
PEDAL SW–RR “ON/OFF”Operation (ON)/open (OFF) status
judged from the pedal adjusting switch
(RR) signal is displayed.
PIIA4590E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
P215 (L)
GroundPedal adjusting switch
ON (BACKWARD oper-
ation)0
Other than above Battery voltage
30 (R)Pedal adjusting switch
ON (FORWARD opera-
tion)0
Other than above Battery voltage
PIIA4591E
15 (L) - 2 (L/Y) : Continuity should exist.
30 (R) - 3 (R) : Continuity should exist.
15 (L) - Ground : Continuity should not exist.
30 (R) - Ground : Continuity should not exist.
LIIA0726E

SE-76
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Revision: August 20072004 QX56
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and door mirror switch.
3. Check continuity between automatic drive positioner control unit connector M33 terminals 3, 4, 19, 20 and
door mirror switch connector D10 terminals 1, 2, 3, 4.
4. Check continuity between automatic drive positioner control unit
connector M33 terminals 3, 4, 19, 20 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DOOR MIRROR SWITCH (MIRROR SWITCH)
Check continuity between door mirror switch as follows.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace door mirror switch.
Door Mirror Switch Ground Circuit InspectionEIS002Z5
1. CHECK DOOR MIRROR SWITCH GROUND CIRCUIT
Check continuity between door mirror switch connector D10 terminal 7 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.3 (Y/B) - 3 (Y/B) : Continuity should exist.
4 (V/W) - 2 (V/W) : Continuity should exist.
19 (SB) - 4 (SB) : Continuity should exist.
20 (GR) - 1 (GR) : Continuity should exist.
3 (Y/B) - Ground : Continuity should not exist.
4 (V/W) - Ground : Continuity should not exist.
19 (SB) - Ground : Continuity should not exist.
20 (GR) - Ground : Continuity should not exist.
LIIA1016E
Terminals Switch condition Continuity
1
7Mirror switch RIGHT operation Yes
Other than above No
2Mirror switch LEFT operation Yes
Other than above No
3Mirror switch UP operation Yes
Other than above No
4Mirror switch DOWN operation Yes
Other than above No
LIIA1489E
7 (B) - Ground : Continuity should exist.
LIIA1018E

AUTOMATIC DRIVE POSITIONER
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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

AUTOMATIC DRIVE POSITIONER
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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

SE-80
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
4. CHECK SEAT MEMORY SWITCH INDICATOR SIGNAL
1. Connect seat memory switch.
2. Turn ignition switch ON.
3. Check voltage between automatic drive positioner control unit
connector M33 terminals 12, 13 and ground.
OK or NG
OK >> Replace automatic drive positioner control unit.
NG >> Replace seat memory switch.
Door Mirror Sensor Power Supply and Ground Circuit inspectionEIS002Z8
1. CHECK DOOR MIRROR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit and door mirror (LH and RH).
2. Check continuity between automatic drive positioner control unit connector M34 terminals 33, 41 and door
mirror connector D4 (LH), D107 (RH) terminals 5, 6.
3. Check continuity between automatic drive positioner control unit
connector M34 terminals 33, 41 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2. CHECK MIRROR SENSOR POWER SUPPLY
1. Connect automatic drive positioner control unit and door mirror
LH.
2. Turn ignition switch to ACC.
3. Check voltage between automatic drive positioner control unit
connector M34 terminal 33 and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace automatic drive positioner control unit.12 (P) - Ground : Battery voltage
13 (Y/G) - Ground : Battery voltage
LIIA1134E
33 (W/L) - 5 (W/L) : Continuity should exist.
41 (W/G) - 6 (W/G) : Continuity should exist.
33 (W/L) - Ground : Continuity should not exist.
41 (W/G) - Ground : Continuity should not exist.
LIIA1023E
33 (W/L) - Ground : Approx. 5V
LIIA1136E

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
3. CHECK MIRROR SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between automatic drive positioner control unit
connector M34 terminal 41 and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace automatic drive positioner control unit.
A/T Device (Detent Switch) Circuit InspectionEIS002Z9
1. CHECK FUNCTION
With CONSULT-II
Check that when the A/T shift lever is in P position, “DETENT SW”
on the DATA MONITOR becomes OFF.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> A/T device (detent switch) circuit is OK.
NG >> GO TO 2.
2. CHECK A/T DEVICE (DETENT SWITCH) HARNESS
1. Turn ignition switch OFF.
2. Disconnect A/T device and driver seat control unit.
3. Check continuity between A/T device connector M203 terminal 6
and driver seat control unit connector P2 terminal 21.
4. Check continuity between A/T device connector M203 terminal 6
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.41 (W/G) - Ground : Continuity should exist.
LIIA1135E
Monitor item
[OPERATION or UNIT]Contents
DETENT SW“ON/
OFF”The selector lever position “P position (OFF)/other than P
position (ON)” judged from the park switch signal is dis-
played.
PIIA0291E
6 (L/R) - 21 (L/R) : Continuity should exist.
6 (L/R) - Ground : Continuity should not exist.
LIIA1024E

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Revision: August 20072004 QX56
3. CHECK DETENTION SWITCH
Check continuity between A/T device (DETENT switch) as follows.
OK or NG
OK >> A/T device is OK.
NG >> Replace A/T device.
Steering Wheel Tilt Switch Circuit InspectionEIS0038N
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
Condition Continuity
(+) (–)
56P position Continuity should not exist.
Other than
P positionContinuity should exist.
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
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M331 (W/G)
GroundTilt switch ON (UP
operation)0
Other than above 5
17 (G/B)Tilt switch ON (DOWN
operation)0
Other than above 5
LIIA0491E

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
Front Door Switch LH Circuit InspectionEIS0 02 ZA
1. CHECK FUNCTION
With CONSULT-II
Touch "BCM" with “DOOR SW DR” on the DATA MONITOR, check
ON/OFF operation when the front door is open and closed.
*:Refer to SE-40, "DATA MONITOR" .
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Front door switch LH circuit is OK.
NG >> GO TO 2.
2. CHECK FRONT DOOR SWITCH LH
1. Turn ignition switch OFF.
2. Disconnect front door switch.
3. Check continuity between front door switch LH terminal 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace front door switch LH.
3. CHECK HARNESS CONTINUITY
1. Disconnect BCM.
2. Check continuity between BCM connector M19 terminal 47 and
front door switch LH connector B8 terminal 2.
3. Check continuity between BCM connector M19 terminal 47 and
ground.
OK or NG
OK >> Front door switch LH circuit is OK.
NG >> Repair or replace harness.
Monitor item [OPERA-
TION or UNIT]Contents
DOOR SW
DR*“ON/
OFF”Door open (ON)/door closed (OFF) status judged from
the front door switch is displayed.
PIIA0291E
Terminals
Condition Continuity
(+) (–)
2GroundWith the front door switch LH pressed No
With the front door switch LH released Yes
LIIA1493E
47 (SB) - 2 (SB) : Continuity should exist.
47 (SB) - Ground : Continuity should not exist.
LIIA1027E

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
UART Communication Line Circuit InspectionEIS002ZB
1. CHECK UART LINE INPUT/OUTPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and
ground, with oscilloscope.
OK or NG
OK >> GO TO 2.
NG >> Check the following.

When voltage wave form does not appear with a constant voltage (approx. 5V), replace driver
seat control unit.

When voltage wave form does not appear with a constant voltage (approx. 0V), replace auto-
matic driver seat control unit.
2. CHECK UART LINE INPUT/OUTPUT SIGNAL 2
Check signal between automatic drive positioner control unit con-
nector ground, with oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

When voltage wave form does not appear with a constant voltage (approx. 5V), replace auto-
matic drive positioner control unit.

When voltage wave form does not appear with a constant voltage (approx. 0V), replace driver
seat control unit.
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
P2 17 (W) GroundPedal
adjusting
switch ON
(FOR-
WARD or
BACK-
WARD
operation)
PIIA4599E
PIIA4814E
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
M33 10 (L) GroundPedal
adjusting
switch ON
(FOR-
WARD or
BACK-
WARD
operation)
PIIA4816E
PIIA4813E