P0C7F - OBD Trouble Code

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What does P0C7F error code signify? What are its symptoms? Are these questions popping in your mind? Then you are at the right place for a solution. The issues with the wires are generally referred to as hybrid battery temperature sensor ‘G’ circuit high. The monitoring of the temperature of each battery cell is usually carried out by the hybrid battery pack by utilizing multiple sensors. If an unlikely temperature is found in the report of at least one of the battery temperature sensors, then the error code P0C7F will be set. Failure of multiple sensors will likely deactivate the high voltage system.

The HV battery is provided with a battery temperature sensor in 3 of its locations. The thermistor’s resistance, which is inbuilt in each of the battery temperature sensors, differs accordingly to the changes in the HV battery temperature. High thermistor resistance means low battery temperature. On the other hand, if the temperature is high, then the resistance will be low. Just to find the HV battery temperature, the battery temperature sensors are used by the battery smart unit which then sends the observed value to the power management control ECU. The blower fan will then be controlled by the power management control ECU depending on the outcome of this detection.

What causes this problem with the Hybrid Battery Temperature Sensor "G" Circuit High?

• The hybrid battery thermistor might be damaged.
• You will see an opening or short-circuit in the hybrid battery thermistor harness.
• Bad electrical connection in the hybrid battery thermistor circuit.
• Malfunctioning battery smart unit.

1. Hybrid Battery Temperature Sensor - Does the engine surge during operation? Is the battery voltage low? Is the battery light illuminated? These are the symptoms of a faulty hybrid battery temperature sensor. Replace it as soon as possible.
2. Hybrid Battery Pack - The hybrid battery packs are usually covered with lithium phosphate and they are designed to be smaller and lighter in weight than usual batteries. Any damage to this hybrid battery pack will need an immediate replacement.
3. Engine Wiring Connectors - The terminals of the engine wiring connectors must be connected properly. Else it might get damaged easily. Get the engine wiring connectors for your vehicle from PartsAvatar.
4. Battery Temperature Sensors - The battery temperature sensor will be faulty if the voltage is too high or if the sensor itself is damaged. In one such situation, it is always best to replace the defective battery temperature sensor so avoid further complications.
5. Battery Assembly - Does the engine fail to start? Does the engine light keep flashing? Then it is an indication that the battery assembly is malfunctioning which needs replacement.
6. Battery Control Module - Battery control module provides an extended battery life and helps to increase the fuel economy. If you find the battery control module to be defective replace it with the right component by shopping them from PartsAvatar.
7. Battery Smart Unit - The illumination of the malfunction indicator lamp will occur if the battery smart unit is found to be defective. Avoid the P0C7F error code by replacing the defective battery smart unit.
8. Diesel Particulate Filter - A common symptom for a defective DPF is the EGR valves which have blockages. Clear the blockages or replace the defective DPF with a new one by shopping it from PartsAvatar.
9. Engine Control Unit - If the ECU is damaged, it can cause sudden jerking or stopping of the vehicle. It’s best to replace the damaged ECU with a new one to avoid further malfunctioning of the vehicle.
10. Powertrain Control Module - The PCM will monitor and compensate for any change in altitude and looks after the overall health of your car. The right replacement for your faulty powertrain control module can be found at Parts Avatar at best prices.

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P0C7F code by mentioning some major symptoms below:

Common Symptoms

• The light will be erratic or the light will remain the same when the DPF is restored. During acceleration, the engine might be lethargic.
• Damaged ECM.
• If the DPF is not corrected, the ECM will remain in the ‘limp home mode’ until and unless the situation is made alright.
• Decreased fuel efficiency

Have a look at some ways with which you can correct the P0C7F code:

• Replacing the faulty battery smart unit and battery assembly.
• Changing the engine wiring connectors that is damaged.
• The defective powertrain control module needs replacement.
• The faulty hybrid battery thermistor must be changed.
• The malfunctioning circuit or the harness of the hybrid battery thermistor must be fixed. 

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of hybrid battery temperature sensor, hybrid battery pack, hybrid battery thermistor, electrical connector, battery temperature sensors, battery assembly, battery interface control module, battery smart unit, DPF, ECU, PCM and many more. Now all your problems would vanish within no time.

If you want to easily diagnose this fault code P0C7F, then all you have to do is to follow the steps which are mentioned below:

• With just one sign for a faulty gasket, it is not sufficient to prove that the gasket is faulty, but you will need multiple symptoms to prove the failure of a gasket.
• Whenever you face these symptoms make sure to drive your vehicle as little as possible.
• Based on the symptoms, you can either repair or replace the gasket.
• The cost to repair a gasket usually depends on one mechanic to another.
• In modern engines, because of the location of a gasket and the amount of labor involved, it’s quite expensive to replace a faulty gasket.
• A P0C7F error code is generally related to a faulty sensor, but replacing them will not solve the original issue.
• The error is most likely caused by the system which the sensor monitors but it can even be caused by the wires which connect the sensor itself. 

Common Mistakes When Diagnosing The P0C7F Code

The technician may go about searching for the issue in the wrong car part while diagnosing the P0C7F error, whereas the issue may be with the high voltage battery interface control module, electrical wires and the high voltage battery assembly which appears to be faulty.