Mazda 929 Ambient Temperature Sensor (Switch) Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(4,454)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(4,454)

Ambient Temperature Sensor (Switch) Replacement Service

How much does a Ambient Temperature Sensor (Switch) Replacement cost?

On average, the cost for a Mazda 929 Ambient Temperature Sensor (Switch) Replacement is $152 with $57 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1990 Mazda 929V6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$229.75Shop/Dealer Price$268.44 - $362.01
1988 Mazda 929V6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$209.75Shop/Dealer Price$248.46 - $342.04
1993 Mazda 929V6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$209.75Shop/Dealer Price$248.46 - $342.04
1989 Mazda 929V6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$209.75Shop/Dealer Price$248.44 - $342.00
1992 Mazda 929V6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$209.75Shop/Dealer Price$248.47 - $342.07
1994 Mazda 929V6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$209.75Shop/Dealer Price$248.46 - $342.04
1991 Mazda 929V6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$214.75Shop/Dealer Price$253.32 - $346.80
1995 Mazda 929V6-3.0LService typeAmbient Temperature Sensor (Switch) ReplacementEstimate$308.63Shop/Dealer Price$371.04 - $535.22
Show example Mazda 929 Ambient Temperature Sensor (Switch) Replacement prices

What is the Ambient Temperature Sensor (Switch) all about?

Modern automotive HVAC systems have advanced by leaps and bounds over those used just a few years ago. Today, many high and even mid-range cars offer automatic climate control. This function basically allows you to “set it and forget it,” allowing the car’s computer to control the heating and cooling based on your preferred interior temperature. In order to do this, the computer needs information about not only the temperature inside the car, but also the ambient temperature outside the car.

The ambient temperature sensor (switch) is located either behind the front grille or in the front bumper. Its only job is to monitor air temperature (which it does through increasing/decreasing resistance in response to temperature fluctuations). This information is transmitted to the car’s computer, which then adjusts the climate control to meet your specifications.

If the ambient temperature sensor is damaged or fails, the car’s computer will not be able to automatically control the HVAC system, and the heater and air conditioner will only work in manual mode.

Keep in mind:

  • Because of its location, the ambient temperature sensor can be easily damaged in even minor front-end collisions.
  • Sensor failure is common even without an accident.

How it's done:

  • The ambient temperature sensor switch is verified to see if it needs to be replaced
  • The defective ambient temperature sensor switch is removed
  • The new ambient temperature sensor switch is installed
  • The ambient temperature sensor switch is tested for operation
  • The vehicle is tested to ensure proper operation of the ambient temperature sensor switch

Our recommendation:

Without the information provided by the ambient temperature sensor, your car’s computer does not have sufficient data to control the interior temperature, and will revert to manual HVAC control. You’ll still be able to use your air conditioner and heater, but only in manual mode, not in auto. If you suspect a problem with the ambient temperature sensor, have it diagnosed by one of our expert mechanics and replaced if necessary.

What common symptoms indicate you may need to replace the Ambient Temperature Sensor (Switch)?

  • HVAC auto mode will not work
  • HVAC auto mode produces delivers inconsistent/incorrect operation
  • HVAC will only work in manual mode
  • Outside temperatures may display incorrectly

How important is this service?

Having automatic climate control is definitely a convenience, but not critical to the operation of your vehicle. The heater will still operate to clear the windows and provide heating and cooling on manual mode. If the ambient temperature sensor is faulty, have it replaced.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mazda mechanics

Real customer reviews from Mazda owners like you.

Excellent Rating

(4,454)

Rating Summary
4,187
142
36
18
71
4,187
142
36
18
71

Mohammed

9 years of experience
152 reviews
Mohammed
9 years of experience
Mazda 929 V6-3.0L - Alternator Repair - Raleigh, North Carolina
Very professional, extremely courteous

Jose

17 years of experience
154 reviews
Jose
17 years of experience
Mazda 929 V6-3.0L - Car Heater Hoses Replacement - Las Vegas, Nevada
Excellent job completed.

Doug

34 years of experience
139 reviews
Doug
34 years of experience
Mazda 929 V6-3.0L - Oxygen Sensor Replacement (Front/Upper/Upstream) - Corona, California
DXCELLENT AND VERY KNOWLEDGEABLE

Benjamin

11 years of experience
92 reviews
Benjamin
11 years of experience
Mazda 3 L4-2.0L - Battery - Dallas, Texas
Benjamin was awesome! On time, friendly, knowledgeable, fast and professional! I'm up and running again, thanks Ben!

Excellent Rating

(4,454)

Rating Summary
4,187
142
36
18
71
4,187
142
36
18
71
Number of Mazda services completed
48994+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mazda MECHANICS
1100+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Fuse Box
If there are bare wires, loose fuses, or broken wires in the fuse box or the fuses are burning out faster, you may need to replace the fuse box.
P3487 OBD-11 Trouble Code: Cylinder Exhaust Valve Control low
What What the P3487 code means This code indicates that there is a problem with the exhaust valve on cylinder number 11. Your vehicle’s powertrain control module (PCM) can recognize that the measured values of the mass airflow sensor, the...
How Do Electric Vehicle Batteries Work?
EV batteries work to power an electric traction motor to move the car’s wheels. Different chemicals produce electricity to provide rechargeable power.

The engine steams well but does not accelerate when pedalled

You will need to have the dealer register the battery to the computer or the vehicle may not work correct and not charge the battery as it should. The new battery will need to be registered to your VIN in...

Oil change question - 2014 Chevrolet Malibu

The "Oil Life" system or "maintenance minder" (https://www.yourmechanic.com/article/understanding-chevrolet-service-indicator-lights-by-brent-minderler) does not provide "absolutes" when it comes to the timing of oil changes. In fact, there are more variables affecting the "optimum change" interval than are considered by such systems. For example,...

Brake lights are not working.

Check the turn signal switch and see if its sticking in place. A bad turn-signal switch may interrupt the brake light circuit and cause the brake lights to not function. Also a broken wire to or from the brake light...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com