2007 INFINITI M35 relay

SE-114
CLIMATE CONTROLLED SEAT
Revision: 2007 April2007 M35/M45
CLIMATE CONTROLLED SEATPFP:870U6
Component Parts and Harness Connector LocationNIS0027H
System DescriptionNIS0027I
The climate controlled seat system is controlled by climate controlled seat control unit.
Heating and cooling are possible for a thermal electric device (heat conversion machine).
NOTE:

The climate controlled seat system is downed when the temperature sensor set as the seat cushion and
the seat back's thermal electric device machine detects 20 °C (68 °F)or more of mutual differences of tem-
perature.

In this case, by turning off ignition switch, system down is canceled and it can be reused by turning on
ignition switch again.

The climate controlled seat blower keep low speed for approximately 60 seconds after turning the climate
controlled seat switch.
CAUTION:

The thermal electric device has the character in which, as for an opposite side. one side becomes
high temperature at the time of low temperature.
PIIB5891E
1. Fuse block (J/B) 2. Climate controlled seat relay E16 3.a: Climate controlled seat switch
driver side B430
b: Climate controlled seat switch
passenger side B429
4.a: Seat cushion thermal electric
device B285 (driver side)
B295 (passenger side)
b: Climate controlled seat control
unit B283, B284 (driver side)
B293, B294 (passenger side)
c: Climate controlled seat blower
motor B282 (driver side)
B292 (passenger side)5.Seatback thermal electric device
B220 (driver side)
B258 (passenger side)

CLIMATE CONTROLLED SEAT
SE-115
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Revision: 2007 April2007 M35/M45

At the time of work, please turn OFF a switch, and carry it out after checking that the thermal elec-
tric device has got cold.
Power is at all times supplied

through 15A fuse [No. 41 located in the fuse fusible link and relay unit]

to climate controlled seat relay terminals 5.

through 15A fuse [No. 42 located in the fuse fusible link and relay unit]

to climate controlled seat relay terminals 7.
When the ignition switch turned to ON or START position,
Power is supplied

through 10A fuse [No. 12, located in the fuse block (J/B)]

to climate controlled seat relay terminal 2.
Then ground is supplied

to climate controlled seat relay terminal 1,

through body grounds E22 and E43.
Then climate controlled seat relay is energized.
When climate controlled seat relay is turned to ON,
Power is supplied,

through climate controlled seat relay terminal 3,

to climate controlled seat control unit (passenger side) terminal 2 and 4.

through climate controlled seat relay terminal 6,

to climate controlled seat control unit (driver side) terminal 2 and 4.
When climate controlled switch select HEAT, ground is supplied

through climate controlled seat switch terminal 1 and 3,

to climate controlled seat control unit terminal 10.
Then, the climate controlled seat control unit receives climate controlled seat switch HEAT signal.
When climate controlled seat switch select COOL, ground is supplied

through climate controlled seat switch terminal 1 and 2,

to climate controlled seat control unit terminal 20,
Then, the climate controlled seat control unit receives climate controlled switch COOL signal.
When blower motor rotates, signal is transmitted

to climate controlled seat control unit terminal 18,

through climate controlled seat blower motor terminal 1.
This is climate controlled seat blower motor tachometer signal.
When climate controlled seat control unit receives climate controlled seat switch signal and tachometer signal,
Power is supplied

to climate controlled seat blower motor terminal 4,

through climate controlled seat control unit terminal 17.
This is blower motor revolution control signal.
When blower motor receivers blower motor revolution control signal,
Power is supplied

through climate controlled seat control unit terminal 14,

to climate controlled seat blower motor terminal 2.
When number of rotations correspond signal,
Ground is supplied

to climate controlled seat blower motor terminal 3,

through climate controlled seat control unit terminal 7,

through climate controlled seat control unit terminal 3,

through body grounds B5, B40 and B131.
Then motor revolution is controlled.
When the ignition switch turned to ON or START position,
Power is supplied

CLIMATE CONTROLLED SEAT
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Revision: 2007 April2007 M35/M45
Check Climate Controlled Seat Control Unit Power Supply Circuit NIS0027P
1. CHECK FUSE
Check 10A fuse [No. 12, located in fuse block (J/B)]
NOTE:
Refer to SE-114, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK CLIMATE CONTROLLED SEAT RELAY POWER SUPPLY CIRCUIT
1. Disconnect climate controlled seat relay connector.
2. Turn ignition switch ON.
3. Check voltage between climate controlled seat relay harness
connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between fuse block (J/B) and
climate controlled seat relay.
3. CHECK CLIMATE CONTROLLED SEAT RELAY
Check continuity climate controlled seat relay.
OK or NG
OK >> GO TO 4.
NG >> Replace climate controlled seat relay.
Terminal
Voltage (V)
(Approx.) (+)
(–)
Climate controlled
seat relay connectorTerminal
E16 2 Ground Battery voltage
PIIB6067E
Climate controlled
seat relay connectorTerminal Condition Continuity
E163512V direct current
supply between
terminals 1and 2Ye s
No current supply No
6712V direct current
supply between
terminals 1and 2Ye s
No current supply No
SEC202B

SE-128
CLIMATE CONTROLLED SEAT
Revision: 2007 April2007 M35/M45
4. CHECK CLIMATE CONTROLLED SEAT RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between climate controlled seat relay connec-
tor and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Repair or replace harness between climate controlled
seat relay and ground.
Check Climate Controlled Seat Control Unit Power Supply and Ground Circuit NIS0027Q
1. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT POWER SUPPLY CIRCUIT
1. Disconnect climate controlled seat control unit connector.
2. Turn ignition switch ON.
3. Check voltage between climate controlled seat control unit con-
nector and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2. CHECK FUSE

Check 15A fuse [No. 42, located in fuse, fusible link and relay unit] (Driver side)

Check 15A fuse [No. 41, located in fuse, fusible link and relay unit] (Passenger side)
NOTE:
Refer to SE-114, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 3.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
Te r m i n a l
Continuity
Climate controlled
seat relay connectorTerminal
Ground
E16 1 Yes
PIIB6068E
Te r m i n a l
Voltage (V)
(Approx.) (+)
(–)
Climate controlled seat
control unit connectorTerminal
B284
(driver side)
B294
(passenger side)2
Ground Battery voltage
4
PIIB6069E

CLIMATE CONTROLLED SEAT
SE-129
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Revision: 2007 April2007 M35/M45
3. CHECK CLIMATE CONTROLLED SEAT RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat relay.
3. Check voltage between climate controlled seat relay connector
and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between climate controlled seat relay and ground.
4. CHECK CLIMATE CONTROLLED SEAT RELAY
Check continuity climate controlled seat relay.
OK or NG
OK >> GO TO 5.
NG >> Replace climate controlled seat relay.
Terminal
Voltage (V)
(Approx.) (+)
(–)
Climate controlled
seat relay connectorTerminal
E165
Ground Battery voltage
7
PIIB6070E
Climate controlled
seat relay connectorTerminal Condition Continuity
E163512V direct current
supply between
terminals 1and 2Ye s
No current supply No
6712V direct current
supply between
terminals 1and 2Ye s
No current supply No
SEC202B

SE-130
CLIMATE CONTROLLED SEAT
Revision: 2007 April2007 M35/M45
5. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT HARNESS CIRCUIT
1. Check continuity between climate controlled seat control unit
connector and climate controlled seat relay connector.
2. Check continuity between climate controlled seat control unit connector and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Repair or replace harness between climate controlled seat control unit and climate controlled seat
relay.
6. CHECK CLIMATE CONTROLLED SEAT CONTROL UNIT GROUND CIRCUIT
Check continuity between climate controlled seat control unit con-
nector and ground.
OK or NG
OK >> Climate controlled seat control unit power supply and ground circuit is OK.
NG >> Repair or replace harness between climate controlled seat control unit and ground.
AB
Continuity Climate controlled
seat control unit
connectorTerminalClimate controlled
seat relay
connectorTerminal
B284
(driver side)2
E166
Ye s 4
B294
(passenger side)2
3
4
A
GroundContinuity Climate controlled
seat control unit
connectorTerminal
B284 (driver side)
B294 (passenger side)2
No
4
PIIB6071E
Terminal Continuity
Climate controlled
seat control unit
connectorTe r m i n a l
Ground Yes
B284
(driver side)
B294
(passenger side)3
PIIB6072E

SE-144
HEATED SEAT
Revision: 2007 April2007 M35/M45
HEATED SEATPFP:87335
Component Parts and Harness Connector LocationNIS00280
System Description NIS00281
NOTE:

When handling seat, be extremely careful not to scratch heating unit

To replace heating unit, seat trim and pad should be separated.

Do not use any organic solvent, such as thinner, benzene, alcohol, etc. to clean trims.
Power is all time supplied

to rear LH seat control unit and rear RH seat control unit terminal 1.

through 50A fusible link [Letter F, located in the fuse block (J/B)],

to IPDM E/R (heated seat relay) terminal 14.

through 15A fuse [No.38, located in the fuse block (J/B)].
With the ignition switch to ON or START position, power is supplied

to rear LH seat control unit terminal 4 and

to rear heated seat switch LH terminal 6.

through IPDM E/R (heated seat relay) terminal 12

to rear RH seat control unit terminal 4 and

to rear heated seat switch RH terminal 6

through IPDM E/R (heated seat relay) terminal 9.
1. Fuse, fusible link and relay block (J/B) 2. IPDM E/R E5, E6, E9 3. Heated seat relay E5, E6, E9
(Built into the IPDM E/R)
4. a: Rear heated seat switch LH B507
b: Rear heated seat switch RH B5585. Rear seat control unit
B303, B304 (LH)
B353, B354 (RH)
(View with the rear seatback
removed)
PIIB5890E

HEATED SEAT
SE-153
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Revision: 2007 April2007 M35/M45
Check Rear Heated Seat Power Supply and Ground CircuitNIS00287
1. CHECK FUSIBLE LINK AND FUSE

Check 50A fusible link (letter F located in the fuse and fusible link box).

Check 15A fuse (No.38, located in fuse block).

Check circuit breaker.
NOTE:
Refer to SE-144, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or circuit breaker is blown, be sure to eliminate cause of malfunction before installing new
fuse or new circuit breaker, refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK HEATED SEAT RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Check voltage between IPDM E/R (heated seat relay) connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between fuse block (J/B) and IPDM E/R (heated seat relay).
3. CHECK HEATED SEAT RELAY GROUND CIRCUIT
1. Disconnect IPDM E/R (heated seat relay) connector.
2. Check continuity between IPDM E/R (heated seat relay) con-
nector and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Repair or replace harness between IPDM E/R (heated
seat relay) and ground.
Terminal
Voltage (V)
(Approx.) (+)
(–) IPDM E/R
(heated seat relay)
connectorTerminal
E6 14 Ground Battery voltage
PIIB5995E
Terminal
Continuity IPDM E/R
(heated seat relay)
connectorTerminal
Ground
E9 54 Yes
PIIB5996E