Page 1719 of 4500
Fig. 88: Identifying Seat Climate Controller RH Connector Terminals (Rear Seat Cushion)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
i.INSPECT SEAT CLIMATE CONTROL BLOWER LH (REAR SEATBACK)
a. Connect the battery's positive (+) lead to terminals 3 (BBS) and 4 (BFB-), and the negative (-
) lead to terminal 2 (BFB+). Check that the blower fan motor operates smoothly.
If the result is not as specified, replace the blower.
Page 1722 of 4500
HINT:
As the temperature increases, the resistance decreases.
If the result is not as specified, replace the controller.
Fig. 91: Identifying Seat Climate Controller LH Connector Terminals (Rear Seatback)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
l.INSPECT SEAT CLIMATE CONTROLLER RH (REAR SEATBACK)
2 (TBS) - 3 (TB5)Controller temperature 10°C (50°F)3.6 to 3.8 kohms
2 (TBS) - 3 (TB5)Controller temperature 25°C (77°F)1.9 to 2.1 kohms
2 (TBS) - 3 (TB5)Controller temperature 30°C (86°F)1.6 to 1.7 kohms
Page 1725 of 4500
Fig. 93: Identifying Rear Wing Inner Heater RH Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Measure the resistance between the terminals of the rear wing inner heater LH.
Standard:
TESTER CONNECTION AND SPECIFIED CONDITION
If the result is not as specified, replace the rear seat cushion heater ass
y LH.
Tester ConnectionConditionSpecified Condition
1 - 220°C (68°F)7.2 to 8.8 ohms
Page 1726 of 4500
Fig. 94: Identifying Rear Wing Inner Heater LH Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Measure the resistance between the terminals of the rear cushion heater LH.
Standard:
TESTER CONNECTION AND SPECIFIED CONDITION
Tester ConnectionConditionSpecified Condition
A1 - B120°C (68°F)4.2 to 5.1 ohms
C2 - C420°C (68°F)4.2 to 5.1 ohms
A2 - B2AlwaysBelow 1 ohms
C1 - C325°C (77°F)2 kohms
Page 1729 of 4500
Fig. 95: Identifying Rear Seat Cushion Heater LH Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
n.INSPECT REAR SEATBACK HEATER ASSY LH
a. Measure the resistance between the terminals of the rear seatback heater LH.
Standard:
TESTER CONNECTION AND SPECIFIED CONDITION
If the result is not as specified, replace the rear seatback heater assy LH.
Fig. 96: Identifying Rear Seatback Heater LH Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
o.INSPECT REAR SEAT CUSHION HEATER ASSY RH
a. Measure the resistance between the terminals of the rear wing outer heater RH.
Tester ConnectionConditionSpecified Condition
A2 - A420°C (68°F)5.4 to 6.6 ohms
S60-4 - A220°C (68°F)5.4 to 6.6 ohms
S60-2 - A420°C (68°F)5.4 to 6.6 ohms
S60-1 - A1AlwaysBelow 1 ohms
S60-3 - A3AlwaysBelow 1 ohms
Page 1730 of 4500
Standard:
TESTER CONNECTION AND SPECIFIED CONDITION
If the result is not as specified, replace the rear seat cushion heater assy RH.
Fig. 97: Identifying Rear Wing Outer Heater RH Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Measure the resistance between the terminals of the rear wing inner heater RH.
Standard:
Tester ConnectionConditionSpecified Condition
1 - 220°C (68°F)2.8 to 3.4 ohms
Page 1731 of 4500
TESTER CONNECTION AND SPECIFIED CONDITION
If the result is not as specified, replace the rear seat cushion heater assy RH.
Fig. 98: Identifying Rear Wing Outer Heater RH Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Check the resistance between the terminals of the rear cushion heater RH.
Standard:
TESTER CONNECTION AND SPECIFIED CONDITION
Tester ConnectionConditionSpecified Condition
1 - 220°C (68°F)7.2 to 8.8 ohms
Page 1733 of 4500
Fig. 99: Identifying Rear Cushion Heater RH Connector Terminals
