Physical Values

TERMINALS REFERENCE

Terminal No.
(Wire color)

Description

Condition

Voltage (V) (Approx.)

+

-

Signal name

Input/Output

43 (-)

Ground

Ground

-

-

0

52 (-)

Ground

Climate controlled seat switch power supply

Output

Ignition switch ON

12

53 (-)

Ground

Ignition switch power supply

Input

Ignition switch ON

Battery voltage

54 (-)

Ground

COOL switch signal

Input

Climate controlled seat switch

HI COOL

2.6 - 4.2

MID COOL

1.6 - 2.5

LO COOL

0.8 - 1.5

OFF

0

55 (-)

Ground

HEAT switch signal

Input

Climate controlled seat switch

HI HEAT

2.6 - 4.2

MID HEAT

1.6 - 2.5

LO HEAT

0.8 - 1.5

OFF

0

56 (-)

Ground

COOL switch indicator signal

Output

Climate controlled seat switch

COOL

12

OFF

0

57 (-)

Ground

HEAT switch indicator signal

Output

Climate controlled seat switch

HEAT

12

OFF

0

58 (-)

Ground

Seatback thermal electric unit HEAT signal

Output

Climate controlled seat switch

HEAT or COOL

0 - 12⁽¹⁾

OFF

0

59 (-)

Ground

Seatback thermal electric unit COOL signal

Output

Climate controlled seat switch

HEAT or COOL

0 - 12⁽¹⁾

OFF

0

60 (-)

Ground

Seatback thermal electric unit sensor ground

-

Ignition switch ON

0

61 (-)

Ground

Seatback thermal electric unit sensor signal

Input

Climate controlled seat operated

1 - 5

62 (-)

Ground

Seatback blower motor power supply

Output

Climate controlled seat switch

HEAT or COOL

12

Other than the above

0

63 (-)

Ground

Seatback blower motor speed control signal

Output

Climate controlled seat switch

HEAT

5.5 - 8

HI COOL

11.2

MID COOL

8

LO COOL

6.5

64 (-)

Ground

Blower motor ground

-

-

0

67 (-)

Ground

Seat cushion thermal electric unit HEAT signal

Output

Climate controlled seat switch

HEAT or COOL

0 - 12⁽¹⁾

OFF

0

68 (-)

Ground

Seat cushion thermal electric unit COOL signal

Output

Climate controlled seat switch

HEAT or COOL

0 - 12⁽¹⁾

OFF

0

69 (-)

Ground

Seat cushion thermal electric unit sensor ground

-

Ignition switch ON

0

70 (-)

Ground

Seat cushion thermal electric unit sensor signal

Input

Climate controlled seat operated

1 - 5

71 (-)

Ground

Seat cushion blower motor power supply

Output

Climate controlled seat switch HEAT or COOL

12

Other than the above

0

72 (-)

Ground

seat cushion blower motor speed control signal

Output

Climate controlled seat switch

HEAT

5.5 - 8

HI COOL

9.2

MID COOL

8

LO COOL

6.5

74 (-)

Ground

Ignition switch power supply

Input

Ignition switch ON

Battery voltage

⁽¹⁾	It changes between 12 and 0 V

NOTE:

Measure the value on the condition that the battery voltage is 14 V
Wait 1 minute or more after thermal electric unit is activated, and then start the measurement