Error Code P0C85: What It Means & What To Do?
OBD Code P0C85 - Hybrid Battery Temperature Sensor "H" Circuit Intermittent/Erratic
The hybrid battery temperature sensor ‘H’ circuit
intermittent/erratic usually describes the wiring issue in the vehicle. With
the help of multiple sensors, the temperature of each battery cell is monitored
by the hybrid battery pack. If an unlikely temperature is reported by any one
of the battery temperature sensors, then he P0C85 error will be stored in the
vehicle. Additionally, the high voltage system might be disabled if the failure
of multiple sensors take place.
Learn More about OBD Error Code P0C85
The
HV battery has the battery temperature sensor in 3 positions. The thermistor’s
resistance is inbuilt into each battery temperature sensor and this resistance
will keep changing according to the HV battery temperature. Higher the
thermistor’s resistance, lower will be the battery temperature and in a similar
way, if the resistance is low then the temperature will be high. The HV battery
temperature is found by the battery temperature sensors which is used by the
battery smart unit which in turn sends the identified value to the power
management control ECU. Finally, depending on this value, the blower fan will
be operated by the power management control ECU.
What causes this
problem with the Hybrid Battery Temperature Sensor "H" Circuit
Intermittent/Erratic?
- The
improper functioning of the hybrid battery thermistor.
- You
might find the harness of the hybrid battery thermistor to be opened or the
circuit might be shorted.
- The
electrical connection might be bad in the circuit of hybrid battery thermistor.
- Defective
battery smart unit.
Replace/Repair These Parts To Fix OBD Code P0C85
- Hybrid Battery Temperature Sensor - It’s always best to replace the
damaged hybrid battery temperature sensor as it can send incorrect signals to
the computer. Get rid of it as soon as possible.
- Engine Wiring Connectors - A corroded engine wiring connector
can give rise to performance issue in your vehicle which can in turn damage the
engine. Replacing or repairing it quickly can help you to avoid the P0C85
error.
- Battery Temperature Sensors - Malfunctioning of the engine vehicle
can take place if the battery temperature sensor is eroded. Get rid of it as
soon as possible.
- Battery Assembly - Most often the battery assembly can turn out be defective due to
corrosion. Changing your corroded battery assembly can help you to fix the
issue.
- Hybrid Battery Pack - A damaged hybrid battery pack can
give rise to unusual noises in your engine. Replace it as soon as possible.
- Battery Control Module - The batteries power is usually
monitored by the battery control module of the batteries. If you are looking to
avoid the P0C85 error in your vehicle, then you must replace the damaged
battery control module.
- Battery Smart Unit - The battery smart unit can be faulty if the MIL is illuminated.
Repair or replace it as soon as possible.
- Fuel Shutoff Valve
Connector - If
the engine wires are broken or damaged, then the fuel shut off valve connector
can turn out to be faulty. Replace it instantly to get rid of the P0C85 error
code.
- Automatic Transmission System - If the automatic transmission system
is damaged, then the check engine light will keep blinking. Avoid the P0C85
error in your vehicle by replacing the automatic transmission system parts.
Symptoms Of The OBD Error Code P0C85
Next important thing you need to know about are the common symptoms for this OBD error code P0C85 with your fuel volume control.
Common Symptoms
- Flashing of the engine light or the service engine will indicate you with a warning light.
How To Correct Hybrid Battery Temperature Sensor "H" Circuit Intermittent/Erratic Issue?
It is very important to fix the fault code P0C85. So here are some ways with which you can correct this issue:
- The hybrid battery thermistor which is not functioning properly must be replaced.
- The defective battery smart unit must be altered.
- Both the circuit as well as the harness of the hybrid battery thermistor needs replacement.
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 electrical connector, battery temperature sensors, battery smart unit, ohmmeter, automatic transmission system, fuel shutoff valve connector, and many more. Now all your problems would vanish within no time.
Easy Diagnosis Of Engine Error OBD Code P0C85
It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P0C85 code to be stored:
- In order to diagnose this type of error code, with the help of a digital volt-ohmmeter, you will have to search thousands of circuits separately.
- To successfully diagnose this error code, you will need a scanner that is code reader and a digital volt/ohmmeter. Fundamentally, every vehicle which has an automatic transmission and manufactured ever since mid-eighties is well prepared with some type of automatic transmission system which is controlled by a computer.
- If both the voltage and ground signal does not fulfill the manufacturer’s recommendation and if each of the fuses and relays have been correctly tested and passed, then try separating the fuel shut off- valve connector as well as its linked control module connectors.
- Finally, carry out a continuity and resistance test on every of its linked circuits.
- If the engine mountings are broken, then you will hear crouching and banging noises.
- There is 2 important type of mounting- one is placed centrally which is very close to the bottom of the block and the other one is placed high on a block which is located on the inner wings or else the chassis members.
- The P0C85 error code is caused by a faulty sensor, whereas replacing it will not solve the original problem.
- The important reason for the cause of this fault is because of the system which is monitored by the sensor, but the wires which connect the sensor can also cause this issue.
Common Mistakes When Diagnosing The P0C85 Code
The common issue that arises while diagnosing the P0C85 error can be the high voltage battery assembly and the electrical wires that might be problematic. The mechanic may also find issue with the high voltage battery control module.