Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0071-00Ambient Air Temperature Sensor Performance
P0071-00Ambient Air Temperature Sensor Performance (In Active or Stored status)
P0071-00Ambient Air Temperature Sensor Performance
Manufacturer communications
40Original wording in English
RAM
Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0111-00 - Intake Air Temperature Sensor 1 Circuit Performance (In Active or Stored status) ● P0071-00 …
FORD
This bulletin supersedes 26-2301. Reason for update: to update the Pinpoint Tests referenced in Step 1. Some of the vehicles listed in the Model statement above may require the replacement of the ambient air temperature sensor for various concerns. DTCs P0071, P0072, and/or P0073 may be present in the powertrain control module (…
RAM
Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P0111-00 - Intake Air Temperature Sensor 1 Circuit Performance (In Active or Stored status) ● P0071-0…
RAM
Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **U0104-00 - Lost Communication With Cruise Control Module (NA Market Only) (In Active or Stored status…
Check vehicle applicability
253A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | ENCORE ↗ | 2017 |
| Cadillac | LYRIQ ↗ | 2025 |
| Cadillac | LYRIQ ↗ | 2024 |
| Cadillac | OPTIQ ↗ | 2025 |
| Chevrolet | BLAZER EV ↗ | 2025 |
| Chevrolet | BLAZER EV ↗ | 2024 |
| Chevrolet | EQUINOX EV ↗ | 2025 |
| Chevrolet | EQUINOX EV ↗ | 2024 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Ambient Air Temperature Sensor Range/Performance
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.