[SOLVED] P0Aca Code: Fixing Hybrid Battery Temperature Sensor ‘c’ Circuit Issue

The automobile fault code P0ACA indicates a problem with the HV Battery Assembly, specifically the HV battery temperature sensor. This issue can trigger the Engine Light or Service Engine Soon Warning Light to turn on.

The cause of this fault code can be a faulty HV Battery Assembly, an open or shorted HV Battery Assembly harness, a poor electrical connection in the HV Battery Assembly circuit, or a faulty Battery smart unit. To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or broken, bent, pushed out, or corroded pins.

The repair time for this problem is estimated to be 1.0. To interpret the fault code, you need to check the “Possible Causes” mentioned above and perform the necessary inspections and repairs.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p0aca fault code.

  • The symptoms of the automobile fault code p0aca include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p0aca can be caused by a faulty HV Battery Assembly (HV battery temperature sensor), an open or shorted HV Battery Assembly harness, a poor electrical connection in the HV Battery Assembly circuit, or a faulty Battery smart unit.

  • The fault code P0ACA can be caused by the following: 1.
  • Faulty HV Battery Assembly, specifically the HV battery temperature sensor.
  • 2.
  • Open or shorted HV Battery Assembly harness.
  • 3.
  • Poor electrical connection in the HV Battery Assembly circuit.
  • 4.
  • Faulty Battery smart unit.

To fix the automobile fault code p0aca, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p0aca, first, check the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.
  • The estimated repair time for this fix is 1.0 hour.

The automobile fault code P0ACA can be diagnosed and fixed within an estimated repair time of 1.0 hour.

The cost of the repair will depend on the hourly rate charged by the auto repair shop, which typically ranges between $75 and $150 per hour.

The P0ACA fault code refers to a problem with the Hybrid Battery Temperature Sensor ‘C’ Circuit.

This code indicates an issue with the resistance of the thermistor, which is built into the battery temperature sensor. The resistance of the thermistor changes with the temperature of the HV (High Voltage) battery.

The battery smart unit uses the battery temperature sensors to detect the HV battery temperature and sends this information to the power management control ECU. The power management control ECU then controls the blower fan based on the detected temperature.

When the HV battery temperature rises above a predetermined level, the blower fan starts to cool down the battery. If you encounter the P0ACA fault code, it means there is a problem with the Hybrid Battery Temperature Sensor ‘C’ Circuit. It is important to address this issue promptly to ensure proper functioning of the HV battery and prevent any potential damage.

What are the possible causes of the automobile fault code P0ACA?

If you see the engine light or service engine soon warning light on, the fault code P0ACA could be the culprit. This code is often caused by a faulty HV battery assembly, specifically the HV battery temperature sensor. Other possible causes include an open or shorted HV battery assembly harness, poor electrical connection in the HV battery assembly circuit, or a faulty battery smart unit. To fix this issue, visually inspect the wiring harness and connectors, checking for any damage or corrosion. Additionally, look out for broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors to fix the P0ACA fault code?

To fix the P0ACA fault code, start by checking the possible causes mentioned above. Then, visually inspect the wiring harness and connectors related to the HV Battery Assembly. Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors. This thorough inspection will help identify any issues and allow for the necessary repairs to be made.

What should I look for when checking for damaged components or corroded connector pins to resolve the P0ACA fault code?

When resolving the P0ACA fault code, start by checking for damaged components or corroded connector pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any broken, bent, pushed out, or corroded pins on the connectors. By doing this, you can identify any issues that may be causing the fault code and take the necessary steps to fix them.

p0aca error fault code explained

If you see the Engine Light ON or the Service Engine Soon Warning Light, it could be due to a faulty HV Battery Assembly or issues with the wiring harness and connectors.

To fix it, visually inspect the wiring and connectors, check for damaged components, and look for any broken or corroded pins.

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