2002 TOYOTA AVENSIS Repair Manual

B70879Hook
± SEATREAR SEAT ASSY (UNITED FIXED)
72±33
AVENSIS REPAIR MANUAL (RM1018E)
10. INSTALL REAR SEAT CUSHION ASSY
(a) Place the 2 hooks in the body firmly.
(b) Insert the frame into the 2 hooks.

720JF±01
B67299
LHD Models
RHD ModelsInstrument Panel J/B Assy

SEAT HTR Relay

S±HTR Fuse
Instrument Panel J/B Assy

SEAT HTR Relay

S±HTR Fuse
72±34
± SEATSEAT HEATER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
SEAT HEATER SYSTEM
LOCATION

B67826
Front Seat Cushion Heater Assy RHFront Seatback Heater Assy RH
Seat Heater Switch
Seat Heater Control Sub±
Assy RHFront Seatback Heater Assy LHSeat Heater Control Sub±
Assy LH
Front Seat Cushion Heater Assy LH
± SEATSEAT HEATER SYSTEM
72±35
AVENSIS REPAIR MANUAL (RM1018E)

720JG±01
72±36
±
SEAT SEAT HEATER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
SymptomSuspected AreaSee Page
Seat heaters do not operate
(Seat is not warmed up)
1. SEAT HTR relay
2. S±HTR fuse
3. Seat heater switch
4. Seat heater control sub±assy LH
5. Seat heater control sub±assy RH
6. Front seat cushion heater assy LH
7. Front seat cushion heater assy RH
8. Front seatback heater assy LH
9. Front seatback heater assy RH
10.Wire harness72±34
72±37
72±34
72±34
72±37
72±34
72±34
72±34
72±37
72±34
72±37
72±34
72±37
72±34
72±37

Temperature of seat heater cannot be adjusted
1. Seat heater switch
2. Seat heater control sub±assy LH
3. Seat heater control sub±assy RH
4. Wire harness72±34
72±37
72±34
72±34

720JH±01



B70589
A
B
1 21 2 3 4 5
(k)
65

18
0 0 0.42 ± 0.28 4.08 ± 2.72
ON OFF 65

B70591
1 21 2 3 4 5 A
B
± SEATSEAT HEATER SYSTEM
72±37
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. LH side:
INSPECT SEAT HEATER SWITCH
(a) Check the seat heater switch resistance.
Tester ConnectionSwitch PositionSpecified Condition
OFF10 kor higher
B±2 ± B±4ON
(Minimum ± Maximum)Below 1 
OFF10 kor higher
B±2 ± B±3ON
(Minimum ± Maximum)Refer to illustration
If the continuity is not as specified, replace the switch.
(b) Turn the seat heater switch ON and check the seat heater
switch indicator illuminates.
Tester ConnectionSpecified Condition
Battery positive voltageB±2
Battery negative voltageB±5Illuminates
If the result is not as specified, replace the switch.
(c) Check the seat heater switch illuminates.
Tester ConnectionSpecified Condition
Battery positive voltageB±1
Battery negative voltageB±5Illuminates
If the result is not as specified, replace the switch or bulb.




B70880
1 21 2 3 4 5
(k)
65

18
0 0 0.42 ± 0.28 4.08 ± 2.72
ON OFF65
AB
B70881
1 21 2 3 4 5 A
B
72±38
± SEATSEAT HEATER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
2. RH side:
INSPECT SEAT HEATER SWITCH
(a) Check the seat heater switch resistance.
Tester ConnectionSwitch PositionSpecified Condition
OFF10 kor higher
B±2 ± A±1ON
(Minimum ± Maximum)Below 1 
OFF10 kor higher
B±2 ± A±2ON
(Minimum ± Maximum)Refer to illustration
If the continuity is not as specified, replace the switch.
(b) Turn the seat heater switch ON and check the seat heater
switch indicator illuminates.
Tester ConnectionSpecified Condition
Battery positive voltageB±2
Battery negative voltageB±5Illuminates
If the result is not as specified, replace the switch.
(c) Check the seat heater switch indicator illuminates.
Tester ConnectionSpecified Condition
Battery positive voltageB±1
Battery negative voltageB±5Illuminates
If the result is not as specified, replace the switch or bulb.

B70436
12
B70436
12
1 2
B68349
AB
1 2
B68349
AB
B68374
21
5
3
± SEATSEAT HEATER SYSTEM
72±39
AVENSIS REPAIR MANUAL (RM1018E)
3. INSPECT SEPARATE TYPE FRONT SEATBACK COV-
ER LH
(a) Check the resistance of the seatback heater.
Tester ConnectionSpecified Condition
1 ± 2Below 1 
If the result is not as specified, replace the seatback cover.
4. INSPECT SEPARATE TYPE FRONT SEATBACK COV-
ER RH
(a) Check the resistance of the seatback heater.
Tester ConnectionSpecified Condition
1 ± 2Below 1 
If the result is not as specified, replace the seatback cover.
5. INSPECT SEPARATE TYPE FRONT SEAT CUSHION
COVER LH
(a) Check the resistance of the seat cushion heater.
Tester ConnectionSpecified Condition
A±1 ± B±1
A±2 ± A±3Below 1 
A±4 ± B±2
If the result is not as specified, replace the seat cushion cover.
6. INSPECT SEPARATE TYPE FRONT SEAT CUSHION
COVER RH
(a) Check the resistance of the seat cushion heater.
Tester ConnectionSpecified Condition
A±1 ± B±1
A±2 ± A±3Below 1 
A±4 ± B±2
If the result is not as specified, replace the seat cushion cover.
7. INSPECT RELAY (SEAT HTR)
(a) Check the resistance of the relay.
Standard:
Tester ConnectionSpecified Condition
10 kor higher
3 ± 5Below 1 
(When battery voltage is applied to terminals 1 and 2)
If the result is not as specified, replace the relay.

610E8±01
B69710
± SEAT BELTFRONT SEAT BELT
61±5
AVENSIS REPAIR MANUAL (RM1018E)
FRONT SEAT BELT
PRECAUTION
CAUTION:
Replace the faulty parts of the seat belt systems (outer belt, inner belt, bolts, nuts, adjustable shoul-
der anchor, tether anchor hardware, sill±bar, etc.)
Seat belt systems not in use at the time of a collision should also be inspected and replaced if found
to be damaged or working improperly.
1. RUNNING TEST (IN SAFE AREA)
(a) Fasten the front seat belts.
(b) Drive the car at 16 km/h (10 mph) and slam on the brakes.
Check the belt locks and cannot be extended at this time.
HINT:
Conduct this test in a safe area. If the belt does not lock, remove
the belt assembly and perform the following static check. Also
whenever installing a new belt assembly, verify the proper op-
eration before installation.