Nissan Maxima. Instruction — part 1011
SEAT CUSHION THERMAL ELECTRIC DEVICE
SE-17
< DTC/CIRCUIT DIAGNOSIS >
[WITH CLIMATE CONTROLLED SEATS]
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
YES
>> Inspection End.
NO
>> Replace thermal electric device. Refer to
.
SE-18
< DTC/CIRCUIT DIAGNOSIS >
[WITH CLIMATE CONTROLLED SEATS]
SEATBACK THERMAL ELECTRIC DEVICE
SEATBACK THERMAL ELECTRIC DEVICE
Description
INFOID:0000000010049473
Provides cooling and heat for the seatback.
Component Function Check
INFOID:0000000010049474
1.
CHECK SEATBACK THERMAL ELECTRIC DEVICE FUNCTION
1. Turn the climate controlled seat switch to the H (Heat) HI position and check that the seatback thermal
electric device operates correctly.
2. Turn the climate controlled seat switch to the C (Cool) HI position and check that the seatback thermal
electric device operates correctly.
Is the inspection result normal?
YES
>> Seatback thermal electric device is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000010049475
Regarding Wiring Diagram information, refer to
1.
CHECK SEATBACK THERMAL ELECTRIC DEVICE
Perform thermal electric device component inspection for the seatback. Refer to
tion (Thermal Electric Device)"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace seatback thermal electric device. Refer to
2.
CHECK SEATBACK THERMAL ELECTRIC DEVICE CIRCUITS
1. Turn ignition switch OFF.
2. Disconnect seatback thermal electric device connector and cli-
mate controlled seat control unit connector B217.
3. Check continuity between seatback thermal electric device con-
nector B218 (A) terminals 1, 2 and climate controlled seat con-
trol unit connector B217 (B) terminals 25, 28.
4. Check continuity between seatback thermal electric device connector B218 (A) terminals 1, 2 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connectors.
3.
CHECK SEATBACK THERMAL ELECTRIC DEVICE SENSOR CIRCUITS
Seatback thermal electric de-
vice
Climate controlled seat control
unit
Continuity
Connector
Terminal
Connector
Terminal
B218 (A)
1
B217 (B)
28
Yes
2
25
AWJIA0396ZZ
Seatback thermal electric device
Ground
Continuity
Connector
Terminal
B218 (A)
1
No
2
SEATBACK THERMAL ELECTRIC DEVICE
SE-19
< DTC/CIRCUIT DIAGNOSIS >
[WITH CLIMATE CONTROLLED SEATS]
C
D
E
F
G
H
I
K
L
M
A
B
SE
N
O
P
1. Disconnect climate controlled seat control unit connector B212.
2. Check continuity between seatback thermal electric device con-
nector B218 (A) terminals 3, 4 and climate controlled seat con-
trol unit connector B212 (B) terminals 15, 16.
3. Check continuity between seatback thermal electric device connector B218 (A) terminals 3, 4 and ground.
Is the inspection result normal?
YES
>> Replace climate controlled seat control unit. Refer to
NO
>> Repair harness or connectors.
Component Inspection (Thermal Electric Device)
INFOID:0000000010049476
1.
CHECK THERMAL ELECTRIC DEVICE
1. Turn ignition switch OFF.
2. Disconnect thermal electric device connector.
3. Measure the resistance of the thermal electric device between terminals 1 and 2.
NOTE:
The resistance value in the table below will change under any of the following conditions:
• air blowing across the thermal electric device
• changing the surrounding temperature of the thermal electric device
• measuring at other than 23
°C (73°F)
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace thermal electric device. Refer to
.
2.
CHECK THERMAL ELECTRIC DEVICE SENSOR
Measure the resistance of the thermal electric device sensor between terminals 3 and 4.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace thermal electric device. Refer to
.
Seatback thermal electric de-
vice
Climate controlled seat control
unit
Continuity
Connector
Terminal
Connector
Terminal
B218 (A)
3
B212 (B)
16
Yes
4
15
AWJIA0397ZZ
Seatback thermal electric device
Ground
Continuity
Connector
Terminal
B218 (A)
3
No
4
Thermal electric device terminals
Temperature
Resistance
1
2
23
°C (73°F)
0.9 – 10
Ω
Thermal electric device terminals
Temperature
Resistance
3
4
0 – 10
° C (32 – 50° F)
2785– 1660
Ω
10 – 20
° C (50 – 68° F)
1840 – 1135
Ω
20 – 30
° C (68 – 86° F)
1265 – 800
Ω
30 – 40
° C (86 – 104° F)
895 – 565
Ω
40 – 50
° C (104 – 122° F)
635 – 425
Ω
SE-20
< DTC/CIRCUIT DIAGNOSIS >
[WITH CLIMATE CONTROLLED SEATS]
CLIMATE CONTROLLED SEAT SWITCH
CLIMATE CONTROLLED SEAT SWITCH
Description
INFOID:0000000010049477
Provides inputs to the climate controlled seat control unit for climate controlled seat operation.
Component Function Check
INFOID:0000000010049478
1.
CHECK CLIMATE CONTROLLED SEAT SWITCH FUNCTION
Turn the climate controlled seat switch to the H (Heat) LO, MED, and HI positions and the C (Cool) LO, MED,
and HI positions. Check that the climate controlled seat operates at low, medium and high heat, and low,
medium and high cool.
Is the inspection result normal?
YES
>> Climate controlled seat switch function is OK.
NO
>> Refer to
Diagnosis Procedure
INFOID:0000000010049479
Regarding Wiring Diagram information, refer to
1.
CHECK CLIMATE CONTROLLED SEAT SWITCH
Perform climate controlled seat switch component inspection. Refer to
SE-21, "Component Inspection (Cli-
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace climate controlled seat switch.
2.
CHECK CLIMATE CONTROLLED SEAT SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect climate controlled seat switch connector and climate
controlled seat control unit connector B216.
3. Check continuity between climate controlled seat switch con-
nector M302 (A) terminal 1 and climate controlled seat control
unit connector B216 (B) terminal 24.
4. Check continuity between climate controlled seat switch connector M302 (A) terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connectors.
3.
CHECK CLIMATE CONTROLLED SEAT SWITCH COOL CIRCUIT
Climate controlled seat switch
Climate controlled seat control
unit
Continuity
Connector
Terminal
Connector
Terminal
M302 (A)
1
B216 (B)
24
Yes
AWJIA0398ZZ
Climate controlled seat switch
Ground
Continuity
Connector
Terminal
M302 (A)
1
No
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