The P0073 diagnostic trouble code (DTC) indicates that there is a high voltage condition in the Ambient Air Temperature (AAT) sensor circuit. The AAT sensor is responsible for measuring …

If all prior tests have passed and you continue to get a P0073, this would most likely indicate a failed AAT sensor, although a failed control module could not be ruled out until the AAT sensor …

Hoe to fix a P0073 engine code: Ambient Air Temperature Sensor Circuit High Input What is the Ambient Air Temperature Sensor? The ambient air temperature sensor reports the outside …

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it.

Jul 15, 2025 · Scan tool showing a P0073 code? There's a problem with your ambient air temperature sensor. Here's how to troubleshoot it step by step.

May 24, 2024 · If you’re seeing the P0073 code, this guide will help you understand its meaning, symptoms, causes, and fixes. You’re likely reading this because your car’s throwing the P0073 …

Sep 26, 2022 · Most of the time, P0073 is going to be caused by a bad AAT sensor or AAT sensor wiring. On most vehicles, the AAT sensor can be found around the front grill or …

Sep 13, 2025 · Learn all about the P0073 code, what causes ambient air temperature sensor circuit high, and how to diagnose and fix common issues to maintain optimal engine performance.

May 27, 2024 · Diagnostic trouble code (DTC) P0073 stands for “Ambient Air Temperature Sensor Circuit High.” It indicates that there might be a problem with your vehicle’s ambient air …

When the Engine Control Module (ECM) detects high input voltage from this sensor, it triggers the P0073 code. Essentially, it signals that something is amiss in how your car gauges external …