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P0925 is a diagnostic trouble code (DTC) for "Gear Shift Reverse Actuator Circuit Range/Performance". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
The P0925 trouble code detects an issue with the gear shift reverse actuator circuit.
The P0925 code is a generic OBD-II trouble code that notes a problem with the transmission’s gear shift reverse actuator circuit. The gear shift reverse actuator is responsible for shifting the transmission into the reverse gear. When the powertrain control module (PCM) or engine control module (ECM) detects an abnormal voltage reading from the gear shift reverse actuator circuit, then the P0925 trouble code will be detected.
A few different issues can cause the P0925 trouble code to be triggered:
The P0925 trouble code will likely be accompanied by the Check Engine Light illuminating on the gauge cluster. The vehicle will also likely have problems shifting into or out of the reverse gear, or may refuse to altogether. It is also common for fuel efficiency to be reduced.
The P0925 code will be diagnosed with the help of a standard OBD-II trouble code scanner. A reputable technician can use the freeze frame data from the scanner to assess the P0925 code, and also to look for any additional trouble codes that are present. If numerous codes are present, they should be addressed in the order in which they appear. The mechanic will then reset the trouble codes, restart the vehicle, and check to see if the code has returned. If the P0925 code disappears, it was most likely triggered incorrectly, or represents an intermittent issue.
If the code does return, the mechanic should begin with a visual inspection of all electrical components in the system. Any damaged wires, connectors, fuses, or circuits will need to be replaced. Next, the mechanic will perform a thorough inspection on the gear shift reverse actuator, as well as the guide rail and shift shaft.
If the problem is still unresolved, a deeper inspection of the entire transmission system will be required.
Whenever a component is replaced during inspection and repairs, the mechanic should reset the trouble codes and restart the vehicle, to see if the code returns. By doing this, the mechanic is able to know as soon as the issue is resolved.
The most common mistake to make when diagnosing the P0925 code comes from failing to adhere to the OBD-II trouble code diagnosis protocol. Mechanics should obey the protocol step by step at all times, to make sure that their inspection and repair is as effective and efficient as possible. Failure to do so may result in addressing codes in the wrong order, missing a relatively simple fix, or not clearing the codes.
A vehicle with the P0925 trouble code is still drivable, though the reverse gear may not be usable. If the car is driven with a detected P0925 code, severe damage to the transmission is risked. For both of these reasons, the code should be addressed as soon as it is detected.
Some repairs for the P0925 code include:
It is very rare for the PCM, ECM, or transmission control module to require replacement. However, if one of these control modules does need to be replaced, it will require reprogramming.
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