2006 INFINITI M35 heater

HEATED SEAT
SE-151
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 January2006 M35/M45
Terminals and Reference Values for Rear Seat Control UnitNIS00284
Work FlowNIS00285
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to SE-143, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SE-151,
"Trouble Diagnoses Symptom Chart" .
4. Does heated seat operate normally? YES: GO TO 5, NO: GO TO 3.
5. INSPECTION END.
Trouble Diagnoses Symptom ChartNIS00286
Check that other systems using the signal of the following systems operate normally.
Te r m i n a lWire
colorItem ConditionVoltage (V)
(Approx.)
1 R Power source (BAT) — Battery voltage
4 R/B Power source (IGN) — Battery voltage
5 R/Y Seat heater HI signalSeat heater HI operation Battery voltage
Other than above 0
6 R/L Seat heater LO signalSeat heater LO operation Battery voltage
Other than above 0
8 B/L Ground (power) — 0
9 W/B Heated seat indicator HI signalHeater HI operation (lit) 0
Other than above Battery voltage
13 B/Y Ground (signal) — 0
14 W/G Heated seat indicator LO signalHeater LO operation (lit) 0
Other than above Battery voltage
17 W/L Heated seat switch HI signalHeated seat switch (HI) – ON (pressed) 0
Heated seat switch (HI) – OFF Battery voltage
18 W Heated seat switch LO signalHeated seat switch (LO) – ON (pressed) 0
Heated seat switch (LO) – OFF Battery voltage
Symptom Diagnoses / service procedure Refer to page
Rear heated seat LH and RH does not operate.Rear heated seat power supply and ground
circuit inspectionSE-152
Rear heated seat LH or RH do not operate.1. Rear seat control unit power supply and
ground circuit inspectionSE-1532. Rear heated seat switch circuit inspectionSE-155
3.Rear seatback heater circuit inspectionSE-161
4.Replace rear LH or RH seat control unitSE-143
Rear heated seat do not operate with LO or HI position.1. Rear heated seat switch circuit inspectionSE-1552. Rear heated seat circuit inspectionSE-160
Rear heated seat LH or RH indicator do not operate.Rear heated seat indicator power supply cir-
cuit inspectionSE-157
Rear heated seat indicator do not operate with LO or HI posi-
tionRear heated seat indicator circuit inspectionSE-158

SE-160
HEATED SEAT
Revision: 2006 January2006 M35/M45
Rear Heated Seat Circuit InspectionNIS0028C
1. CHECK REAR SEAT CONTROL UNIT
1. Turn ignition switch ON.
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 HEATER HARNESS
1. Turn ignition switch OFF.
2. Disconnect rear seat control unit and rear seat cushion heater connector.
3. Check continuity between rear seat control unit connector and
rear seat cushion heater connector.
4. Check continuity between rear seat control unit connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Replace or replace harness between rear seat control unit and rear seat cushion heater.
Terminal
ConditionVoltage (V)
(Approx.) (+)
(–) Rear seat
control unit
connectorTerminal
B303 (LH)
B353 (RH)5
GroundRear heated
seat switchHIGH Battery voltage
Other than above. 0
6Rear heated
seat switchLOW Battery voltage
Other than above. 0
PIIB6010E
AB
Continuity
Rear seat control
unit connectorTe r m i n a lRear seat cushion
heater connectorTerminal
B303 (LH)
B353 (RH)5
B309 (LH)
B359 (RH)1
Ye s
62
A
GroundContinuity
Rear seat control
unit connectorTerminal
B303 (LH)
B353 (RH)5
No
6
PIIB6011E

HEATED SEAT
SE-161
C
D
E
F
G
H
J
K
L
MA
B
SE
Revision: 2006 January2006 M35/M45
3. CHECK REAR SEAT HEATER CIRCUIT
1. Connect rear seat control unit and rear seat cushion heater connector.
2. Turn ignition switch ON.
3. Check voltage between rear seat cushion heater connector and
ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace rear seat cushion heater.
Rear Seatback Heater Circuit InspectionNIS0028D
1. CHECK REAR SEAT HEATER CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between rear seat cushion heater connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Replace rear seat cushion heater.
Terminal
ConditionVoltage (V)
(Approx.) (+)
(–) Rear seat
cushion heater
connectorTerminal
B309 (LH)
B359 (RH)3 GroundRear heated
seat switchHIGH Battery voltage
LOW 6
Other than above. 0
PIIB6012E
Terminal
ConditionVoltage (V)
(Approx.) (+)
(–) Rear seat
cushion heater
connectorTerminal
B309 (LH)
B359 (RH)3 GroundRear heated
seat switchHIGH Battery voltage
LOW 6
Other than above. 0
PIIB6012E

SE-162
HEATED SEAT
Revision: 2006 January2006 M35/M45
2. CHECK REAR SEAT HEATER HARNESS
1. Turn ignition switch OFF.
2. Disconnect rear seat cushion heater and rear seatback heater connector.
3. Check continuity between rear seat cushion heater connector
and rear seatback heater connector.
4. Check continuity between rear seat cushion heater connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace or replace harness rear seat cushion heater and rear seatback heater.
3. CHECK REAR SEAT HEATER GROUND CIRCUIT
Check continuity between rear seatback heater connector and
ground.
OK or NG
OK >> Replace rear seatback heater.
NG >> Replace or replace harness rear seatback heater and
ground.
AB
Continuity
Rear seat cushion
heater connectorTe r m i n a lRear seatback
heater connectorTerminal
B309 (LH)
B359 (RH)3 B310 (LH)
B360 (RH)1Yes
A
GroundContinuity
Rear seat cushion
heater connectorTe r m i n a l
B309 (LH)
B359 (RH)3No
PIIB6013E
Te r m i n a l
Continuity
Rear seatback
heater connectorTerminal
Ground
B310 (LH)
B360 (RH)2Yes
PIIB6014E