P0937 - Hydraulic Oil Temperature Sensor Circuit

P0937 – OBD-II Trouble Code Technical Description

Hydraulic oil temperature sensor circuit

What does the fault code mean P0937?

If your vehicle's check engine light is on and code P0937 is set, know that this OBD code indicates any fault in the vehicle's hydraulic oil temperature sensor circuit.

The hydraulic fluid temperature is monitored by the hydraulic oil temperature sensor and then reported to the powertrain control module. Code P0937 also causes the PCM to conclude that there is a problem with the hydraulic pressure sensor itself.

Possible reasons

What causes this problem with the hydraulic oil temperature sensor circuit?

• No voltage message from temperature sensor.
• Damaged wiring causes problems communicating accurate temperatures.
• The PCM is not working properly.
• Wiring or connectors are damaged.
• Malfunction of the hydraulic oil temperature sensor.

What are the symptoms of a fault code? P0937?

Symptoms of P0937 include:

• Overheating
• Unstable vehicle behavior
• Sluggish mode
• Switching problem
• Poor fuel economy
• Unstable behavior of warning lamps

How to diagnose a fault code P0937?

To diagnose trouble code P0937, follow these steps:

1. Connect a code scanner to the diagnostic port and retrieve any stored codes. Freeze the data and start solving them in the order they appear. Make sure previous codes have been cleared and cleared before further diagnosing this problem.
2. Inspect the hydraulic oil temperature sensor for visible damage. Test it with a voltmeter to detect any internal problems. Carefully check the wiring from the oil temperature sensor to the PCM, looking for loose connections or disconnected wires and connectors.
3. Inspect the wiring harness located near the intake manifold bracket. Make sure all components are in good condition and replace any damaged or loose wires or connectors.
4. If necessary, replace the hydraulic oil temperature sensor or PCM if serious problems are detected.
5. After repairs are completed, reset the codes and take a test drive to see if the P0937 trouble code returns.

Diagnostic errors

When diagnosing cars, as in other areas, various common errors can occur. Some of them include:

1. Insufficient Inspection: Insufficient attention to detail or shortening the diagnostic procedure may result in missing key problems or faults, which later leads to an incorrect diagnosis.
2. Poor interpretation of data: Some technicians may misinterpret the data received from diagnostic equipment, which may lead to incorrect determination of the cause of the problem.
3. Wrong choice of diagnostic methods: Using an inappropriate or outdated diagnostic method for a particular problem may lead to incorrect conclusions.
4. Limited access to information: Lack of complete or up-to-date information on specific vehicle models or types of faults can make accurate diagnosis difficult.
5. Improper use of equipment: Insufficient knowledge or incorrect use of diagnostic equipment can lead to incorrect conclusions and misdiagnoses.
6. Insufficient testing of various systems: Ignoring diagnostics of various vehicle systems can lead to missing problems that may be related to each other.

To avoid these common mistakes, technicians must adhere to standard diagnostic procedures, have access to complete and current vehicle information, and use their skills and experience to obtain an accurate diagnosis.

How serious is the fault code? P0937?

Trouble code P0937 indicates problems with the vehicle's hydraulic oil temperature sensor. Although this can cause some transmission problems, this code in itself is usually not critical or extremely dangerous to driving safety. However, ignoring this problem can lead to serious consequences for the transmission and other vehicle systems in the future.

Some of the possible consequences of an unresolved problem caused by the P0937 code include:

1. Poor Vehicle Performance: Problems with the temperature sensor can cause the transmission to not operate properly, which in turn can lead to poor vehicle performance and handling.
2. Increased fuel consumption: A mismatched or malfunctioning temperature sensor can affect engine efficiency and increase fuel consumption.
3. Further Damage to the Transmission: Prolonged neglect of the problem can result in wear or damage to the transmission, requiring more extensive repairs and increased costs.

Although the P0937 code does not pose a significant risk to driving safety, it is recommended that you have a professional technician diagnose and repair this problem to avoid further damage and ensure the normal functioning of your vehicle.

What repair will help eliminate the code? P0937?

Trouble code P0937 caused by problems with the hydraulic oil temperature sensor may require the following repairs:

1. Replacing or Repairing the Hydraulic Oil Temperature Sensor: If the sensor is damaged or faulty, it should be replaced with a new one or repaired according to the vehicle manufacturer's recommendations.
2. Wiring Inspection: Inspect the wiring from the hydraulic oil temperature sensor to the engine control module (PCM) to ensure there is no damage, breaks or shorts. Repair or replace damaged wires as necessary.
3. Engine Control Module (PCM) Test: Test the engine control module to ensure it is functioning properly. Replace or repair the PCM as necessary.
4. Cleaning or replacing hydraulic fluid: Check the level and condition of the hydraulic fluid. If the level is low or the fluid is contaminated, replace or clean it.
5. Resetting the Code: After the repair, you must reset the trouble codes and test drive the vehicle to ensure that the P0937 code does not return.

It is recommended that you have a qualified automotive technician diagnose and perform the necessary repairs to resolve the P0937 code and restore your vehicle's hydraulic pressure system to normal function.

What is P0937 Engine Code [Quick Guide]

P0937 – Brand-specific information

Here is a list of some well-known car brands where the P0937 trouble code may be related to hydraulic oil temperature sensor problems:

1. Ford – In a Ford transmission system, the P0937 code indicates a faulty hydraulic oil temperature sensor.
2. Chevrolet – On Chevrolet vehicles, the P0937 code indicates a problem with the hydraulic oil temperature sensor that requires diagnosis and repair.
3. Toyota - On Toyota vehicles, the P0937 code may indicate a faulty hydraulic oil temperature sensor, which requires careful analysis and possible replacement.
4. Honda - On Honda vehicles, the P0937 code indicates problems with the hydraulic oil temperature sensor that must be resolved with proper diagnosis and repair.
5. BMW – In a BMW transmission system, the occurrence of a P0937 code may indicate problems with the hydraulic oil temperature sensor, requiring careful analysis and possibly replacement of the sensor.

These are just a few of the many makes of vehicles that may display the P0937 code. It is recommended that you refer to your official owner's manual or consult an automotive technician for more accurate information and diagnosis depending on your specific vehicle make and model.