Engine-Codes - Chevrolet - P0AAE CHEVROLET

P0AAE CHEVROLET - Hybrid/EV Battery Pack Air Temperature Sensor 1 Circuit Low Voltage

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0AAE CHEVROLET Possible Causes

  • Faulty Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2
  • Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2 harness is open or shorted
  • Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2 circuit poor electrical connection
  • Faulty Battery Energy Control Module

How is the P0AAE CHEVROLET code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P0AAE CHEVROLET code

Labor: 1.0

The cost to diagnose the P0AAE CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0AAE CHEVROLET Meaning

The Battery Energy Control Module monitors an inlet air temperature sensor that is located at the inlet of the Hybrid/EV Battery Pack. This temperature sensor is a variable resistor that measures the air temperature of the incoming air which is used to heat and cool the Hybrid/EV Battery Sections and the internal electronics of the Starter/Generator Control Module. The Battery Energy Control Module supplies 5 V to the signal circuit and a ground for the low reference circuit. The inlet air temperature sensor resistance changes with temperature of the incoming inlet air. As the temperature decreases, the sensor resistance increases. As the temperature increases, the sensor resistance decreases. The Starter/Generator Control Module will control the Hybrid/EV Battery Pack Cooling Fan based on the inlet air temperature and hybrid/EV battery temperature sensors.
The Starter/Generator Control Module performs a rationality diagnostic that compares the air Inlet temperature sensor output signal to the average battery temperature of the six battery cell temperature sensors. This diagnostic gets one chance to run during a drive cycle after a specific vehicle off time.

More Information

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