INFINITI M35 2006 Factory Service Manual

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AUTOMATIC DRIVE POSITIONER
Revision: 2006 January2006 M35/M45
Seat Memory and Set Switch Circuit CheckNIS0026S
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
1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner control unit connector and ground.
OK or NG
OK >> Seat memory switch circuit is OK.
NG >> GO TO 2.
2. CHECK SEAT MEMORY SWITCH
1. Disconnect seat memory switch connector.
2. Operate the setting switch and seat memory switch.
3. Check continuity between seat memory switch as follows.
OK or NG
OK >> GO TO 3.
NG >> Replace seat memory switch.
Monitor item [OPERATION or
UNIT]Contents
SET SW “ON/OFF”ON/OFF status judged from the setting
switch 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.
Automatic
drive posi-
tioner con-
trol unit
connectorTerminals
ConditionVoltage [V]
(Approx.)
(+) (-)
M69
GroundMemory switch 1: ON 0
Other than above 5
24Set switch: ON 0
Other than above 5
25Memory switch 2: ON 0
Other than above 5
MIIB0690E
PIIB6188E
Seat memory
switchTerminal Condition Continuity
D91
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
PIIB6189E

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Revision: 2006 January2006 M35/M45
3. CHECK HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit connector.
2. Check continuity between automatic drive positioner control unit
connector and seat memory switch connector.
3. Check continuity between automatic drive positioner control unit
connector 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 connector and
ground.
OK or NG
OK >> Replace automatic drive positioner control unit.
NG >> Repair or replace harness.
Seat Memory Indicator Lamp Circuit CheckNIS0026T
1. CHECK FUNCTION
With CONSULT-II
With “MEMORY SW INDCTR” in ACTIVE TEST, check operation.
OK or NG
OK >> Seat memory switch indicator lamp circuit is OK.
NG >> GO TO 2.
AB
Continuity Automatic drive
positioner control
unit connectorTerminalSeat memory
switch connectorTerminal
M69
D91
Ye s 24 3
25 2
A
GroundContinuity Automatic drive posi-
tioner
control unit connectorTerminal
M69
No 24
25
PIIB6190E
Seat memory switch connector Terminal
GroundContinuity
D9 4 Yes
PIIB6191E
Test item Description
MEMORY SW
INDCTRThe memory switch indicator is lit by receiving the drive signal.
PIIA0319E

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Revision: 2006 January2006 M35/M45
2. CHECK SEAT MEMORY INDICATOR LAMP POWER SYUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect seat memory switch connector.
3. Check voltage between seat memory switch connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following.
10A fuse [No.18, Located in the fuse block (J/B)]
Harness for open or short between seat memory switch and fuse.
3. CHECK SEAT MEMORY INDICATOR CIRCUIT HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit connector.
2. Check continuity between automatic drive positioner control unit
connector and seat memory switch connector.
3. Check continuity between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
Terminals
Voltage (V)
(Approx.) (+)
(–)
Seat memory
switch connectorTerminal
D9 5 Ground Battery voltage
PIIB6192E
AB
Continuity Automatic drive
positioner control
unit connectorTe r m i n a lSeat memory
switch connectorTerminal
M612
D96
Ye s
13 7
A
GroundContinuity Automatic drive posi-
tioner
control unit connectorTerminal
M612
No
13
PIIB6193E

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Revision: 2006 January2006 M35/M45
4. CHECK SEAT MEMORY SWITCH INDICATOR SIGNAL
1. Connect seat memory switch connector.
2. Check continuity between automatic drive positioner control unit
connector 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 CheckNIS0026U
1. CHECK DOOR MIRROR SENSOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and door mirror (LH and RH) connector.
3. Check continuity between automatic drive positioner control unit
connector and door mirror connector LH/RH.
4. Check continuity between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
Terminals
Voltage (V)
(Approx.) (+)
(–)
Seat memory
switch connectorTerminal
M612
Ground Battery voltage
13
PIIB6194E
AB
Continuity Automatic drive
positioner control
unit connectorTerminalDoor mirror
connectorTerminal
M733 D2 (LH) 11
Ye s
41 D39 (RH) 12
A
GroundContinuity
Automatic drive positioner
control unit connectorTerminal
M733
No
41
PIIB6164E

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Revision: 2006 January2006 M35/M45
2. CHECK MIRROR SENSOR POWER SUPPLY
1. Connect automatic drive positioner control unit connector.
2. Turn ignition switch to ACC.
3. Check voltage between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace automatic drive positioner control unit.
3. CHECK MIRROR SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> Door mirror power supply and ground circuit are OK.
NG >> Replace automatic drive positioner control unit.
Terminals
Voltage (V)
(Approx.) (+)
(–) Automatic drive
positioner control
unit connectorTerminal
M6 33 Ground 5
PIIB6196E
Automatic drive positioner
control unit connectorTerminal
GroundContinuity
M6 41 Yes
PIIB6197E

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A/T Device (Detention Switch) Circuit CheckNIS0026V
1. CHECK FUNCTION
With CONSULT-II
Check that when the A/T selector lever is in P position, “DETENT
SW” on the DATA MONITOR becomes OFF.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> A/T device (detention switch) circuit is OK.
NG >> GO TO 2.
2. CHECK A/T DEVICE (PARK POSITION SWITCH) HARNESS
1. Turn ignition switch OFF.
2. Disconnect A/T device and driver seat control unit connector.
3. Check continuity between A/T device connector and driver seat
control unit connector.
4. Check continuity between driver seat control unit connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
Monitor item
[OPERATION or UNIT]Contents
Detention SW“ON/
OFF”The selector lever position “P position (OFF)/other than P
position (ON)” judged from the detention switch signal is
displayed.
PIIB6293E
Driver seat
control unit
connectorTe r m i n a l
Condition of A/T
selector leverVoltage (V)
(Approx.)
(+) (–)
M204 21 GroundP position 0
Other than above Battery voltage
PIIB6198E
AB
Continuity
Driver seat control
unit connectorTerminalA/T device
connectorTerminal
M204 21 M133 10 Yes
Driver seat control unit
connectorTerminal
GroundContinuity
M204 21 No
PIIB6199E

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3. CHECK PARK POSITION SWITCH
Check continuity between A/T device (detention switch) as follows.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace A/T device.
Front Door Switch (Driver Side) Circuit Check NIS0026W
1. CHECK DOOR SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and door switch (driver side) connector.
3. Check continuity between BCM connector and door switch (driver side) connector.
4. Check continuity between BCM connector ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
A/T device Terminals Condition Continuity
M133 9 10P position Yes
Other than
P positionNo
PIIB6200E
Terminals
Door conditionVoltage (V)
(Approx.) (+)
(–) BCM
connec-
torTerminal
M3 62 Ground Driver sideOPEN 0
CLOSE Battery voltage
PIIB6295E
AB
Continuity
BCM connector TerminalDoor switch
connectorTerminal
M3 62 B11 2 Yes
A
GroundContinuity
BCM connector Terminal
M3 62 No
PIIB6294E

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3. CHECK DOOR SWITCH
Check continuity door switch (driver side).
OK or NG
OK >> GO TO 4.
NG >> Replace door switch (driver side).
4. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector ground.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace BCM.
UART Communication Line Circuit CheckNIS0026X
1. CHECK UART LINE HARNESS
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and automatic drive posi-
tioner control unit connector.
3. Check continuity between driver seat control unit connector and
automatic drive positioner connector.
4. Check continuity between driver seat control unit connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
Terminal
Door switch Continuity
Door switch
2Ground part of
door switchPushed No
Released Yes
PIIB5977E
Terminal
Voltage (V)
(Approx.) (+)
(–)
BCM connector Terminal
M3 62 Ground Battery voltage
PIIB6295E
AB
Continuity
Driver seat control
unit connectorTerminalAutomatic drive
positioner control
unit connectorTerminal
B2041
M610
Ye s
17 26
A
GroundContinuity
Driver seat control unit
connectorTerminal
B2041
No
17
PIIB6201E

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2. CHECK UART LINE INPUT/OUTPUT SIGNAL 1
1. Connect driver seat control unit and automatic drive positioner control unit connector.
2. Turn ignition switch ON.
3. Check signal between driver seat control unit connector and
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 driver
seat control unit.
When voltage wave form does not appear with a constant voltage (approx. 0V), replace auto-
matic drive positioner control unit.
3. CHECK UART LINE INPUT/OUTPUT SIGNAL 2
Check signal between automatic drive positioner control unit con-
nector and ground, with oscilloscope.
OK or NG
OK >> GO TO 4.
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.
4. CHECK DRIVER SEAT CONTROL UNIT
Does the automatic drive positioner operate when the driver seat control unit is exchanged?
Driver seat
control
unit con-
nectorTe r m i n a l s
ConditionSignal
(Reference value)
(+) (–)
B204 17 GroundTilt switch
operated
PIIB6202E
SKIA0175E
Automatic
drive posi-
tioner con-
trol unit
connectorTe r m i n a l s
ConditionSignal
(Reference value)
(+) (–)
M6 10 GroundTilt switch
operated.
PIIB6203E
SKIA0175E

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OK or NG
OK >> Replace driver seat control unit.
NG >> Replace automatic drive positioner control unit.
Lumber Support Circuit CheckNIS0026Y
1. CHECK LUMBER SUPPORT SWITCH
1. Turn ignition switch OFF.
2. Disconnect lumber support switch connector.
3. Check voltage between lumber support switch connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between fuse block (J/B) and
lumber support switch.
2. CHECK LUMBER SUPPORT SWITCH
Check continuity lumber support switch connector.
OK or NG
OK >> GO TO 3.
NG >> Replace lumber support switch.
Terminals
Voltage (V)
(Approx.) (+)
(–)
Lumbar support
switch connectorTerminal
B212 55 Ground Battery voltage
PIIB6204E
Lumbar
support switchTerminalCondition of
lumbar support switchContinuity
B2125557FORWARD Yes
Other than above No
58BACKWARD Yes
Other than above No
5657FORWARD No
Other than above Yes
58BACKWARD No
Other than above Yes
PIIB6205E