1990 Mazda 929 BaseFACTORY OEM SERVICE PROCEDURE

Electrical Component Locator: Switches

SWITCHES LOCATION

Component Location
A/C Thermoswitch On top of evaporator case. See Figure .
Accelerator Switch (M/T) On accelerator pedal arm.
Back-Up Light Switch On transmission.
Brake Fluid Pressure Switch On brake hydraulic unit. See Figure & Figure .
Clutch Switch On clutch pedal arm.
Coolant Thermoswitch On right bottom corner of radiator. See Figure .
Cruise Stop Switch On brake pedal arm.
Elect. Trans. Indicator Switch On right side of transmission. See Figure & Figure .
Heater Core Thermoswitch On heater case, near heater core. See Figure .
Idle Switch Part of throttle sensor.
Inhibitor Switch On right side of transmission.
Kickdown Switch (A/T) On accelerator pedal.
Neutral Switch On left rear side of transmission. See Figure .
Oil Pressure Switch On oil filter adapter. See Figure .
Power Steering Switch On power steering control valve. See Figure .
Refrigerant Pressure Switch In A/C line, at receiver-drier. See Figure & Figure .
Stoplight Switch On brake pedal arm.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.