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AutoCodes - Generic - P0AE9

P0AE9 Code - Hybrid/EV Battery Temperature Sensor 4 Performance

- Code Popularity: 2,977 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By AutoCodes.com - Updated Jul 27, 2022
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|P0AE9 code possible causes

  • Faulty Hybrid/EV Battery Assembly
  • Hybrid/EV Battery Assembly harness is open or shorted
  • Hybrid/EV Battery Assembly circuit poor electrical connection
  • Faulty Hybrid/EV Battery Interface Control Module

|How do I fix code P0AE9 code?

Check 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.

Does your car have Safety Recalls? → Check here

|Cost of diagnosing P0AE9 code

Labor: 1.0

The cost of diagnosing the P0AE9 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are P0AE9 code possible symptoms?

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

|P0AE9 code description

Hybrid/EV Battery Temperature Sensors are used to monitor the battery temperature. The non-serviceable battery temperature sensors are located within the battery sections. Two temperature sensors are located in each battery section. The temperature sensor is a variable resistor that measures the temperature of the battery cell group. The hybrid/EV interface control module supplies 5 V to the signal circuit and is a ground for the low reference circuit. The battery temperature sensor resistance changes with battery temperature. As the temperature decreases, the sensor resistance increases. As the temperature increases, the sensor resistance decreases.
Each Hybrid/EV Battery Interface Control Module communicates the temperature sensor values to the Hybrid/EV Powertrain Control Module via serial data.
The Hybrid/EV Powertrain Control Module uses the battery temperature sensors to determine the Hybrid/EV Battery Module temperature in order to control the battery cooling system operation.
The Diagnostic Trouble Code (DTC) will be set when the difference between a single battery temperature sensor and an average of the other battery temperature sensors is greater than 25°C (45°F).

OBDII Code p0ae9 - Hybrid/EV Battery Temperature Sensor 4 Performance - AutoCodes.com
P0AE9 Code - Hybrid/EV Battery Temperature Sensor 4 Performance

|Need more information with the P0AE9 code?

Need more information on how to fix the P0AE9 code? Get Access to Factory Service Manuals

|Information for specific makes

  • P0AE9 BUICK Hybrid/EV Battery Temperature Sensor 4 Performance  📷
  • P0AE9 CADILLAC Hybrid/EV Battery Temperature Sensor 4 Performance  📷
  • P0AE9 CHEVROLET Hybrid/EV Battery Temperature Sensor 4 Performance  📷
  • P0AE9 GMC Hybrid/EV Battery Temperature Sensor 4 Performance  📷
  • P0AE9 HONDA High Voltage Battery Module Temperature Sensor 4 Range/Performance Problem
  • P0AE9 LEXUS Hybrid Battery Temperature Sensor 'D' Range/Performance
  • P0AE9 NISSAN Hybrid Battery Temperature Sensor 'D' Range/Performance
  • P0AE9 SATURN Hybrid/EV Battery Temperature Sensor 4 Performance  📷
  • P0AE9 TOYOTA Hybrid Battery Temperature Sensor 'D' Range/Performance

|Need help with a P0AE9 code?

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|P0AE9 code comments

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