2007 INFINITI M35 ignition

SE-86
AUTOMATIC DRIVE POSITIONER
Revision: 2007 April2007 M35/M45
Check A/T Device (Detention Switch) Circuit NIS0026V
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
connectorTerminal
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 connectorTe r m i n a lA/T device
connectorTerminal
M204 21 M133 10 Yes
Driver seat control unit
connectorTerminal
GroundContinuity
M204 21 No
PIIB6199E

AUTOMATIC DRIVE POSITIONER
SE-87
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2007 April2007 M35/M45
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.
Check Front Door Switch (Driver Side) Circuit 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
connectorTerminal
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

SE-88
AUTOMATIC DRIVE POSITIONER
Revision: 2007 April2007 M35/M45
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.
Check UART Communication Line Circuit NIS0026X
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 connectorTe r m i n a lAutomatic drive
positioner control
unit connectorTerminal
B2041
M610
Ye s
17 26
A
GroundContinuity
Driver seat control unit
connectorTerminal
B2041
No
17
PIIB6201E

AUTOMATIC DRIVE POSITIONER
SE-89
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2007 April2007 M35/M45
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
connectorTe 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

SE-90
AUTOMATIC DRIVE POSITIONER
Revision: 2007 April2007 M35/M45
OK or NG
OK >> Replace driver seat control unit.
NG >> Replace automatic drive positioner control unit.
Check Lumbar Support Circuit NIS0026Y
1. CHECK LUMBAR SUPPORT SWITCH
1. Turn ignition switch OFF.
2. Disconnect lumbar support switch connector.
3. Check voltage between lumbar support switch connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between fuse block (J/B) and
lumbar support switch.
2. CHECK LUMBAR SUPPORT SWITCH
Check continuity lumbar support switch connector.
OK or NG
OK >> GO TO 3.
NG >> Replace lumbar 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

POWER SEAT(REAR)
SE-105
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2007 April2007 M35/M45
Check Rear Seat Control Unit Power Supply and Ground CircuitNIS0027A
1. CHECK REAR SEAT CONTROL UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Check voltage between rear seat control unit connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between circuit breaker and rear seat control unit.
2. CHECK REAR POWER SEAT CONTROL UNIT GROUND CIRCUIT
1. Disconnect rear seat control unit connector.
2. Check continuity between rear seat control unit connector and
ground.
OK or NG
OK >> Rear seat control unit power supply and ground circuit is OK.
NG >> Repair or replace harness between rear seat control unit and ground.
Terminal
Voltage (V)
(Approx.) (+)
(–)
Rear seat control
unit connectorTerminal
B303 (LH)
B353 (RH)1 Ground Battery voltage
PIIB5917E
Terminal
Continuity
Rear seat control
unit connectorTerminal
Ground B303 (LH)
B353 (RH)8
Ye s
B304 (LH)
B354 (RH)13
PIIB5918E

SE-106
POWER SEAT(REAR)
Revision: 2007 April2007 M35/M45
Check Rear Seat Sliding Motor CircuitNIS0027B
1. CHECK REAR SEAT SLIDING MOTOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Check voltage between rear seat control unit connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Replace rear seat control unit.
2. CHECK REAR SEAT SLIDING MOTOR HARNESS
1. Disconnect rear seat control unit and rear seat sliding motor connector.
2. Check continuity between rear seat control unit connector and
rear seat sliding motor connector.
3. Check continuity between rear seat control unit connector and
ground.
OK or NG
OK >> Replace rear seat sliding motor.
NG >> Repair or replace harness between rear seat control unit and rear seat sliding motor.
Terminal
ConditionVoltage (V)
(Approx.) (+)
(–) Rear seat
control unit
connectorTerminal
B303 (LH)
B353 (RH)2
GroundRear power
seat switch Forward Battery voltage
Other than above. 0
7Rear power
seat switch Backward Battery voltage
Other than above. 0
PIIB5919E
AB
Continuity
Rear seat control
unit connectorTe r m i n a lRear seat sliding
motor connectorTerminal
B303 (LH)
B353 (RH)2
B311 (LH)
B361 (RH)3
Ye s
74
A
GroundContinuity
Rear seat control unit connector Terminal
B303 (LH)
B353 (RH)2
No
7
PIIB5920E

POWER SEAT(REAR)
SE-107
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2007 April2007 M35/M45
Check Rear Power Seat Switch CircuitNIS0027C
1. CHECK REAR POWER SEAT SWITCH POWER SUPPLY
1. Turn ignition switch OFF.
2. Check voltage between rear seat control unit connector and
ground.
OK or NG
OK >> Replace rear seat control unit.
NG >> GO TO 2.
2. CHECK REAR POWER SEAT SWITCH HARNESS
1. Disconnect rear seat control unit connector and rear power seat switch connector.
2. Check continuity between rear seat control unit connector and
rear power seat switch connector.
3. Check continuity between rear seat control unit connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between rear seat control unit and rear power seat switch.
Terminal
ConditionVoltage (V)
(Approx.) (+)
(–) Rear seat
control unit
connectorTerminal
B304 (LH)
B354 (RH)10
GroundRear power
seat switch Forward 0
Other than above. Battery voltage
15Rear power
seat switch Backward 0
Other than above. Battery voltage
PIIB5921E
AB
Continuity
Rear seat control
unit connectorTerminalRear power seat
switch connectorTerminal
B304 (LH)
B354 (RH)10
B504 (LH)
B555 (RH)2
Ye s
15 1
A
GroundContinuity
Rear seat control unit connector Terminal
B304 (LH)
B354 (RH)10
No
15
PIIB5922E