Nissan Leaf. Manual - part 1129

ST-8

< SYSTEM DESCRIPTION >

[WITH HEATED STEERING WHEEL]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

HEATED STEERING WHEEL SYSTEM
HEATED STEERING WHEEL SYSTEM : Component Parts Location

INFOID:0000000010119075

A.

At the back of instrument lower panel 
LH

No.

Component

Function

1 A/C auto amp.

ST-9, "HEATED STEERING WHEEL SYSTEM : A/C Auto Amp."

2 Heated steering wheel switch

ST-9, "HEATED STEERING WHEEL SYSTEM : Heated Steer-
ing Wheel Switch"

3 Heated steering wheel

ST-9, "HEATED STEERING WHEEL SYSTEM : Heated Steer-
ing Wheel"

4 Heated steering wheel relay

ST-9, "HEATED STEERING WHEEL SYSTEM : Heated Steer-
ing Wheel Relay"

ALGIA0177ZZ

COMPONENT PARTS

ST-9

< SYSTEM DESCRIPTION >

[WITH HEATED STEERING WHEEL]

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HEATED STEERING WHEEL SYSTEM : Heated Steering Wheel

INFOID:0000000010119076

With the power supply from the heated steering wheel relay, the

heated steering wheel controls temperature through the heating ele-

ment (1) and thermostat (2) built into the steering wheel.

• Heating element: Generates heat by energization.

NOTE:

Heating element is located at the back of the steering wheel

leather surface.

• Thermostat: Turns ON/OFF power supply according to the speci-

fied temperature. 

HEATED STEERING WHEEL SYSTEM : Heated Steering Wheel Switch

INFOID:0000000010119077

• The heated steering wheel switch include the indicator lamp. It

turns ON when the system starts.

• The heated steering wheel switch transmits a heated steering

wheel ON/OFF signal to the A/C auto amp.

HEATED STEERING WHEEL SYSTEM : Heated Steering Wheel Relay

INFOID:0000000010119078

Through the control of the A/C auto amp., the heated steering wheel relay turns ON/OFF electricity to the

heating element built-in the steering wheel and turns ON/OFF the indicator lamp mounted on the heated steer-

ing wheel switch. For location, refer to 

ST-8, "HEATED STEERING WHEEL SYSTEM : Component Parts

Location"

.

HEATED STEERING WHEEL SYSTEM : A/C Auto Amp.

INFOID:0000000010119079

• A/C auto amp. turns ON/OFF the heated steering wheel relay, according to a signal transmitted from the

heated steering wheel switch.

• The A/C auto amp. includes a timer. The heated steering wheel relay is turned OFF when the timer operat-

ing time reaches 30 minutes.

- Timer: Turns ON/OFF the heated steering wheel relay for a specified period of time

• For other infomation of A/C auto amp., refer to 

HAC-25, "A/C Auto Amp."

.

JSGIA0986ZZ

JSGIA0985ZZ

ST-10

< SYSTEM DESCRIPTION >

[WITH HEATED STEERING WHEEL]

SYSTEM

SYSTEM

HEATED STEERING WHEEL SYSTEM
HEATED STEERING WHEEL SYSTEM : System Description

INFOID:0000000010119080

SYSTEM DIAGRAM

DESCRIPTION

• The heated steering wheel system maintains the surface temperature of the steering wheel between 20

°C

(68

°F) and 30°C (86°F).

• When the heated steering wheel switch is pressed, the A/C auto amp. turns ON the heated steering wheel

relay and the indicator lamp mounted on the heated steering wheel switch turns ON. In addition, the heated

steering wheel relay turns ON electricity to the heating element built-in the steering wheel to heat the steer-

ing wheel.

• When the heated steering wheel switch is pressed again, the A/C auto amp. turns OFF the heated steering

wheel relay and the indicator lamp mounted on the heated steering wheel switch turns OFF. In addition, the

heated steering wheel relay turns OFF electricity to the heating element built-in the steering wheel to heat

the steering wheel.

• When the surface temperature of the steering wheel is higher than 30

°C (86°F), the thermostat built-in the

steering wheel turns OFF, and electricity to the heating element is turned OFF. When the surface tempera-

ture drops to less than 20

°C (68°F), the thermostat built-in the steering wheel turns ON, and electricity to the

heating element is turned ON.

• The A/C auto amp. has a timer. After the heated steering wheel switch is turned ON, when operating time

becomes more than the specified time (30 minutes), the A/C auto amp. turns OFF the heated steering wheel

relay to stop heating.

• The A/C auto amp. can control the heated steering wheel by the AC-heater timer. For AC-heater timer: Refer

to 

HAC-38, "AUTOMATIC AIR CONDITIONING SYSTEM : A/C-Heater Timer (Climate Ctrl. Timer)"

 (with

heat pump) or 

HAC-236, "AUTOMATIC AIR CONDITIONING SYSTEM : A/C-Heater Timer (Climate Ctrl.

Timer)"

 (without heat pump).

NOTE:

JSGIA0965GB

SYSTEM

ST-11

< SYSTEM DESCRIPTION >

[WITH HEATED STEERING WHEEL]

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The indicator lamp will remain on as long as the system is on. Push the heated steering wheel switch again to

turn the heated steering wheel system off manually. The indicator lamp will go off.