P0C80 - OBD Trouble Code

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Are you looking for information regarding the P0C80 error code? You are at the right place. Keep reading. The hybrid battery temperature sensor ‘G’ circuit intermittent/erratic is usually referred to the wiring issues in the vehicle. In order to monitor the temperature of a single battery cell, multiple sensors are used by the hybrid pack. If an improbable temperature is identified by one of the battery cells, then the P0C80 error code will be set. The high voltage system might get disabled if multiple sensors fail.

The HV battery has the battery temperature sensor in 3 of its location. As the temperature of the HV battery changes, the thermistor’s resistance which is inbuilt in each battery temperature sensor will also vary. The thermistor’s resistance will be high when the battery temperature is low and in a similar way if the thermistor’s resistance is low, then the temperature will be high. The HV battery temperature is identified by the battery smart unit with the help of battery temperature sensors and in turn, it sends the perceived value to the power management control ECU. The blower fan is controlled by the power management ECU, depending on the perceived results.

What causes this problem with the Hybrid Battery Temperature Sensor "G" Circuit Intermittent/Erratic?

• The battery smart unit might be defective.
• Damaged hybrid battery thermistor.
• There might be an opening or the hybrid battery thermistor harness might have a short circuit.
• The electrical connection of the hybrid battery thermistor circuit might be weak.

1. Hybrid Battery Temperature Sensor - Illumination of the battery light can occur if the hybrid battery temperature sensor fails. It’s wise to replace the damaged hybrid battery temperature sensor quickly so that the engine functions normally.
2. Hybrid Battery Pack - If the hybrid battery pack is damaged, then you will notice a drop in the battery bars with no usage. This is an indication that the hybrid battery pack needs a quick replacement.
3. Engine Wiring Connectors - The engine wiring connectors might get easily eroded if the temperature is high. Changing the damaged engine wiring connectors is very important so as to avoid the P0C80 error in the vehicle.
4. Battery Temperature Sensors - The battery temperature sensor measures the temperature and sends the information to the charger to adjust the voltage. If the temperature is high, the battery temperature sensor will fail and will need a replacement to function normally.
5. Battery Assembly - Cranking of the engine will be the very first symptom that you will notice if the battery assembly is faulty. Replace the faulty battery assembly with a new one.
6. Battery Control Module - The battery control module monitors the power supply as well as the charging of the batteries. It is always best to replace your damaged battery control module so that the P0C80 error code can be avoided.
7. Battery Smart Unit - One easy way to avoid the P0C80 error code in your vehicle is to replace the faulty battery smart unit as it illuminates the MIL and causes further performance related issues.
8. Diesel Particulate Filter - If your DPF is faulty, it will send in too much fuel to the fuel mixture. Replacing the faulty DPF is one easy way to get rid of the P0C80 error code.
9. Engine Control Unit - The engine performance will be poor and there will be a drop in fuel economy if the ECU malfunctions. Replace it immediately.
10. Powertrain Control Module - If the PCM is faulty, then the behavior of the engine will be erratic which has to be changed immediately.

We at Parts Avatar Canada care for our customers, and that’s why we will help you to diagnose P0C80 code by listing out some major symptoms. They are mentioned below as follows:

Common Symptoms

• As the DPF restores, the light will remain the same or light erratically. The engine will be inactive as you accelerate.
• Defective PCM.
• The ECU will return to the ‘limp home mode’ if the DPF is not corrected, until and unless the situation is made clear.
• The fuel efficiency might be reduced.

We have listed out some ways which would help you to correct the occurrence of OBD Code P0C80. They are mentioned here as follows:

• Replacing the faulty ECU.
• The malfunctioning battery smart unit must be changed.
• Changing the faulty hybrid battery thermistor.
• The harness or the circuit of the hybrid battery thermistor must be fixed.

There is no need to be anxious as Parts Avatar – Car Parts Online is here to help you out! We have high-grade hybrid battery temperature sensor, hybrid battery pack, electrical connector, DPF, ECU, PCM and a lot more for our precious customers.

Here are some steps which you should follow in order to diagnose this fault code P0C80:

• A definite sign for this error code is the presence of smoke or steam coming from below the hood.
• There are chances that the ignition timing might be set wrongly which will need adjustments.
• As you look below the hood, you might find the drive belts to be loose which has to be made tight or completely changed.
• If there is any fluid below the car, then it could be a sign of a faulty cylinder head gasket.
• This can actually be confirmed when a curling smoke is blown through the exhaust system.
• The error code P0C80 can also be activated by other errors which rose earlier down the line.
• For example, a MAF sensor which is dirty will make the car to overreact in its fuel trim adjustments.
• As an end result, there will be reports of fuel mixture issue in the oxygen sensors.

Common Mistakes When Diagnosing The P0C80 Code

• Defective high voltage battery assembly.
• An issue with the electrical wires.
• Faulty high voltage battery control module.