Error Code P0725: What It Means & What To Do?

<<See All OBD Codes

The trouble code P0725 can be defined as Engine Speed input Circuit Malfunction. This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle make to another.

This can happen because of a lot of reasons and the mechanic should diagnose the specific cause for this code.

Want to learn something more about this fault code?

This trouble code indicates that there is some issue with the engine speed input circuit. The engine input speed sensor is responsible for sending a signal about the engine’s speed to the powertrain control module (PCM).

What causes this problem with the Engine Speed input Circuit Malfunction?

• Engine speed sensor reluctor ring might be faulty or worn
• There can be open or shorted wiring and/or connectors in the engine speed input circuit
• Defects in the engine speed input sensor or transmission output speed sensor
• Magnetic tip of the sensor might have a lot of metal deposits
• Faults in the mechanical transmission

1. Turbocharger - A faulty Turbocharger can be troublesome. You can always rely on us as we have best auto parts for our customers.
2. Powertrain Control Module - If everything is alright with Turbocharger, then there is surely some defect in Powertrain Control Module. Get it replaced before the situation gets worse.
3. Automatic Transmission Sensor - P0725 code can display due to some issues in the Automatic Transmission Sensor. So, it is very important to replace the Automatic Transmission Sensor with us at equitable prices.
4. EGR Valve Gasket - Do you remember when was the last time you got your car EGR Valve Gasket checked up? A dirty EGR Valve Gasket can cause a lot of issues like displaying P0725 code.
5. Engine Control Module - Poor Engine Control Module can cause a lot of difficulties, so why not get it replaced at time?
6. Engine Wiring Connectors - Are there some faults in your Engine Wiring Connectors? Don’t waste time and get them replaced or else P0725 code can turn up.
7. Oil Pressure Sender - OBD Code P0725 can appear because of faulty Oil Pressure Sender.

Willing to know some common symptoms of OBD Trouble Code P0725? Your wish is our demand. Have a look at them below:

Common Symptoms

• Inconsistent speedometer/odometer
• Automatic transmissions may shift harshly (limp-in mode)
• Transmission fails to shift or shifts abnormally
• Tachometer might not be working properly
• Transmission slippage or delay in the engagement

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P0725:

• If there are some faults in the input speed sensor, then it should be replaced
• Carefully replace the defective wires
• Make sure to replace the defective connectors
• Carefully restore the transmission fluid
• The malfunctioning powertrain control module should be replaced properly

There is no need to be anxious as Parts Avatar – Car Parts Online is here to help you out! We have high grade exhaust pressure sensor, exhaust pressure control valve, automatic transmission module, egr pressure sensor, turbo kit, turbo car, oil pressure switches, electric turbo, turbo diesel, twin turbo kits and a lot more for our precious customers

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

In order to diagnose a P0725, a diagnostic scanner, a digital volt/ohmmeter (DVOM), and a reliable vehicle information source would be required. When diagnosing an automatic transmission related code, start by testing the condition and level of the transmission fluid. Carefully remove the dipstick and note the level of the fluid in the transmission. Also note the order of the transmission fluid. If fluid smells burnt, appears extremely black, or has a heavy metallic hue, suspect that mechanical failure of the transmission has occurred.

If the fluid level is more than one quart low, inspect the transmission, lines, and cooler for leaks and repair them as required. Fill the transmission according to manufacturer’s recommendations and make sure that no more leaks are present. If a large transmission fluid leak from the torque converter area is exhibited, suspect catastrophic transmission failure that will require transmission removal and possible overhaul.

Now once the transmission is full of the right fluid and no more leaks are present, visually inspect wiring and connectors for signs of damage, corrosion, or overheating. With the transmission filled to the recommended level with the appropriate fluid and no visibly damaged wiring or connectors present, connect the scanner to the vehicle diagnostic connector and retrieve all stored codes and freeze frame data. You can always write this information down because it may be helpful in your diagnosis process. Clear the codes and test drive the vehicle if possible.

If the P0725 is reset, connect the scanner to the vehicle and observe the engine speed input signal (to the PCM) on the data display screen. If possible, test-drive the vehicle and note engine input speed. If engine input speed varies greatly from engine RPM, suspect a defective engine input speed sensor or reluctor ring damage/wear.

Use the DVOM to test the engine input speed sensor by finding the specifications in the vehicle information source and following testing recommendations. Inspect the sensors magnetic tip for excessive metal deposits and the reluctor ring for imperfections.

Common Mistakes When Diagnosing The P0725 Code

• Most of the times mechanics fail to follow the OBD-II trouble code diagnosis protocol for the P0725 trouble code, which is a big mistake
• Follow the protocol in proper order to ensure that inspection and repairs are both thorough and as timely as possible
• The mechanic might replace the input speed sensors thinking that it is causing the P0725 fault code, but in reality, the issue might be with some other car part