P0072 Mitsubishi Code - Ambient Air Temperature Sensor Circuit Low
Quick Answer
The Powertrain Control Module (PCM) monitors the Ambient Air Temperature Sensor. Common causes include Faulty ambient air temperature sensor, Ambient air temperature sensor harness is open or shorted, Ambient air temperature sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0072 Mitsubishi indicates Ambient Air Temperature Sensor Circuit Low.
- Common causes
- Common causes include Faulty ambient air temperature sensor, Ambient air temperature sensor harness is open or shorted, Ambient air temperature sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0072 Mitsubishi Description
What are the Possible Causes of the DTC P0072 Mitsubishi?
- Faulty ambient air temperature sensor
- Ambient air temperature sensor harness is open or shorted
- Ambient air temperature sensor circuit poor electrical connection
How to Fix the DTC P0072 Mitsubishi?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0072 Mitsubishi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0072 Mitsubishi Code
1. What does the OBDII code P0072 mean on a Mitsubishi?
P0072 indicates a problem with the Ambient Air Temperature Sensor Circuit, specifically that the sensor is reading a voltage lower than the expected range.
2. What are the common symptoms of code P0072 in a Mitsubishi?
Common symptoms include incorrect ambient temperature readings on the dashboard, poor climate control performance, and possible effects on engine performance or air conditioning.
3. What causes the P0072 code to appear in a Mitsubishi?
Potential causes include a faulty ambient air temperature sensor, damaged wiring or connectors, a short circuit, or a malfunctioning PCM (Powertrain Control Module).
4. How do I fix the P0072 code on my Mitsubishi?
Start by inspecting the sensor and its wiring for damage or corrosion, clean or repair connectors if necessary, and replace the sensor if it’s faulty.
5. Where is the ambient air temperature sensor located on a Mitsubishi?
The ambient air temperature sensor is typically located near the front grille or bumper, where it can measure external air temperature.
6. Can I drive my Mitsubishi with a P0072 code?
While it may not immediately affect drivability, prolonged issues can impact climate control and fuel efficiency, so it’s best to address the problem promptly.
7. How can I test the ambient air temperature sensor on a Mitsubishi?
Using a multimeter, check the sensor’s resistance and compare it to the manufacturer’s specifications for the current temperature.
8. Will clearing the P0072 code fix the issue permanently?
Clearing the code will reset the warning temporarily, but the issue will return if the underlying problem isn’t resolved.
9. How much does it cost to fix the P0072 code on a Mitsubishi?
The cost varies but typically includes the price of a replacement sensor ($20-$50) and potential labor costs if professional repair is needed.
10. Can a faulty ambient air temperature sensor affect my Mitsubishi’s fuel economy?
Yes, incorrect temperature readings may cause improper air-fuel mixture adjustments, potentially reducing fuel efficiency.
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