P2560 - OBD Trouble Code

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Do you have any idea as to when the P2560 error code will get stored in the vehicle? The engine control module will carefully look after the engine coolant level sensor as well as the coolant level. The error code will be set by the PCM if the coolant level sensor signal shows an indication that the coolant level is less.

The coolant level in the engine might be very low. It is always best that the coolant system gets repaired and refilled as and when necessary and from time to time.

What causes this problem with the Engine Coolant Level Low?

• The coolant level sensor might be damaged.
• The harness of the coolant level sensor might either be open or shorted.
• The electrical connection might be very poor in the coolant level sensor.

1. Engine Control Module - Malfunctioning of the engine control module can arise due to power relay or voltage issues. Changing the defective engine control module can help you to get rid of the P2560 error in your vehicle.
2. Powertrain Control Module - The engine will fail to start or the fuel economy will be poor if the powertrain control module is faulty. Get them replaced as soon as possible so that you can get rid of the P2560 error code.
3. Engine Coolant Level Sensor - If the coolant light stays on, it is a sign that the engine coolant level sensor is faulty. Get rid of it as soon as possible.
4. Coolant Temperature Sensor - The fuel economy of the vehicle will be very low if the coolant temperature sensor is faulty. Fix it quickly.
5. Water Pump - A broken water pump can cause leakage in the vehicle. Fixing it quickly can help you to avoid the P2560 error code.
6. Coolant hoses - Overheating of the engine is one of the common symptoms for broken coolant hoses. Fix it as soon as possible.
7. Radiator - Sludge build up will eventually change the colour of the coolant and affect the radiator. Fix it immediately by getting a new radiator from PartsAvatar.
8. Engine Temperature Sensor - Idling or stalling of the engine is a sign of a defective engine temperature sensor. Avoid the P2560 error by replacing the damaged EGT sensor with a new one from PartsAvatar.

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P2560 here:

Common Symptoms

• The engine might overheat if the coolant level is insufficient.
• Malfunction indicator lamp will be flashing and the error code will be stored.

Here are some ways with the help of which you will be able to correct the OBD Code P2560:

Like every other vehicle, the engine has specifically developed hydraulic lifters for the P2560 error code which has the intake and exhaust valves.

• The faulty ECM/PCM must be fixed.
• If the water pump is leaky or broken, change it immediately.
• You have to fix the leak in the coolant hose.

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Here are some steps which you should follow in order to diagnose this P2560 fault code:

• The coolant level sensor is fixed in the engine coolant system which provides data to the PCM.
• Voltage wire and sensor wire is available in the sensor.
• In order to monitor the engine temperature, the reference voltage wire is used by the PCM.
• A float is used by the sensor on a mechanical arm.
• As the float corresponds to the coolant level, it is either lifted or lowered which affects the mechanical arm as it controls the system of electronic contacts which changes respectively.
• Resistance will decrease as coolant increases.
• This increases the signal voltage input signal to the PCM.
• The resistance will increase as the coolant level falls, which lowers the input signal voltage to the PCM.
• If the signal voltage of the input from the engine coolant level sensor goes below a certain degree, an error will be stored and the service engine soon lamp will be well-lit.
• The diagnosis has to be done if the engine is overheated and the repairs have to be done accordingly.
• The diagnostic procedure will include a preemptive chemical block test in most scenario.
• In order to capture the steam from the engine cooling system, the test must be done with a special application device, in which a chemical agent reacts with any hydrocarbons.
• By testing this, the mechanic can make sure that changing few components like a thermostat, water pump, coolant hoses, heater core, the radiator will change the overheating condition by eliminating the block and cylinder head faults.
• Once the error has been eliminated, fixing the problem can be very simple with the help of a cooling system pressure tester to find a coolant leak and fixing it.
• If there is no leakage, thermostat, cooling fan or radiator can be faulty. If the vehicle is in good condition and if the error does not appear due to overheating, then the engine temperature sensor can be defective.
• To correctly diagnose this error code, you will need various instruments.
• A DVOM, an oscilloscope, and a scanner can be highly helpful in performing a correct diagnosis.
• A manufacturer’s service manual will be essential.
• Carefully check the wires and connectors.
• The damaged wires, connectors, and other components have to be separated and repaired.
• After each successful diagnosis, recheck the system. Attach a scanner to the vehicle if every component is in proper working conditions and retrieve both the stored codes and freeze frame data.
• This is highly helpful to find if there are any irregular conditions which made this error code to get stored in the vehicle.
• Clear all codes and retest the vehicle to see if any error has occurred.
• This will help you to know if the condition was irregular. Clear all codes and retest the vehicle to see if an error appears again.
• The condition will be erratic if the code does not show up instantly.
• In one such situation, you have to worsen the condition of the vehicle before proceeding for further diagnosis as this is a challenging task.
• Proceed further by removing the electrical connector from the engine coolant level sensor and checking for the reference voltage.
• You can always check with the service manual of the manufacturer but it’s usually 5 volts.
• You have to check the ground wire of the sensor if you find 5 volt signal with the ignition turned to the run position.
• Check the sensor for resistance if you find both the reference signal and ground signal by utilizing the manufacturer’s level to resistance chart.
• Relate your findings to the manufacturer’s specification and fix the sensor if it does not obey. If both the sensor and voltage are within acceptable ranges, separate the PCM electrical connector and check for circuit continuity and resistance in between the sensor and PCM.
• Fix and change the system circuits and components as needed and retest the system. If the system sensor and circuit work well, the PCM can be faulty but it is very rare and needs reprogramming.

Common Mistakes When Diagnosing the P2560 Code

• The coolant system might be leaky.