HEATED STEERING WHEEL SYSTEM
id061600700700
Heated Steering Wheel System
Purpose
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• The heated steering wheel system warms the steering wheel using the heated steering wheel units built into the steering wheel.
Function
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• The heated steering wheel system warms the steering wheel by the heat generated by the heated steering wheel unit heating wires.
• When the heated steering wheel system is operated for approx. 30 min, the voltage supplied to the heated steering wheel units is stopped by the heated steering wheel control unit and the heated steering wheel system operation is stopped.
• The seat warmer/heated steering wheel interlock function can be enabled/disabled by changing a setting in Mazda Connect.
Structure/construction
System structure (L.H.D.)
System structure (R.H.D.)
System wiring diagram
Operation
1. When the heated steering wheel icon is pressed, the indicator in the icon turns on and the climate control unit sends (1) a heated steering wheel system operation request signal to the heated steering wheel control unit.
2. When the heated steering wheel control unit receives the heated steering wheel system operation request, the CPU built into the heated steering wheel control unit turns the FET on (2).
3. When the FET is turned on, voltage is supplied (3) to the heated steering wheel units and they warm up.
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Note
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• The heated steering wheel control unit stops the operation of the heated steering wheel system when the heated steering wheel control unit detects that the heated steering wheel system has been operated for about 30 minutes.
Heated Steering Wheel Control Unit
Purpose, function
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• The heated steering wheel control unit supplies voltage to the electric heating wires built into the heated steering wheel units.
• The heated steering wheel control unit detects the temperature around the heated steering wheel units by the thermistors built into them.
• The heated steering wheel control unit maintains a constant temperature of approx. 37 °C {99 °F} around the heated steering wheel units by intermittently supplying voltage to the heated steering wheel units according to the temperature detected by the thermistors.
Structure/construction
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• The heated steering wheel control unit is located in the steering wheel.
Operation
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Heated Steering Wheel Units
Purpose
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• The heated steering wheel units warm up the steering wheel.
Function
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• The electric heating wires built into the steering wheel units warm up the steering wheel with the heat generated by the voltage supplied from the heated steering wheel control unit.
• When the heated steering wheel control unit detects that the temperature around the heated steering wheel units exceeds the set value by the thermostats, it stops supplying voltage to the electric heating wires.
Structure/construction
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• The heated steering wheel units are located in the steering wheel.
• The thermistors and thermostats are built into the heated steering wheel units.
Operation
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Heated Steering Wheel Icon
Purpose, function
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• The driver can switch the heated steering wheel system to operational or non-operational using the heated steering wheel icon.
Structure/construction
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• The heated steering wheel icon is located on the climate control unit.
L.H.D.
R.H.D.
Operation
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