Definition of Code P0932
The fault code P0932 detects a malfunction in the circuit of the hydraulic pressure sensor.
What does code P0932 mean?
Code P0932 is a standard OBD-II trouble code that indicates an electrical issue with the hydraulic pressure sensor. The hydraulic pressure system is used to facilitate gear shifts in the automatic transmission. When the vehicle needs to downshift or upshift, different hydraulic circuits associated with different gear ratios engage or disengage to enable the shift. Hydraulic pressure is controlled by the Powertrain Control Module (PCM) and the Transmission Control Module (TCM), which rely on various engine factors to determine the shift strategy. The pressure is then regulated by the PCM through the hydraulic pressure sensors. When the PCM detects an error with the hydraulic pressure sensor signal, the fault code P0932 will be triggered.
What causes code P0932?
Fault code P0932 is typically caused by faulty electrical components, such as shorted wires, open or corroded cables, blown fuses, or even a loss of ground. It is also possible for the code to be triggered by a defective hydraulic pressure sensor or a faulty PCM or TCM.
What are the symptoms of code P0932?
Fault code P0932 will usually be accompanied by the check engine light illuminating on the vehicle’s dashboard. There will likely also be transmission issues, such as harsh shifting or an inability to access certain gears (this can result in higher than usual engine RPM or hesitant acceleration). It is common for the vehicle to experience reduced fuel efficiency as well.
How does a mechanic diagnose code P0932?
Code P0932 will be diagnosed using a standard OBD-II trouble code scanner. A trusted mechanic will use the scanner to view the freeze frame data of the code and check for the presence of any additional trouble codes. If multiple trouble codes are found, they must be addressed in the order they appear on the scanner. The codes will then need to be reset and the vehicle restarted so the mechanic can see if code P0932 remains detected. If the code does not return, an intermittent error or false trigger should be suspected.
If code P0932 remains detected after resetting, the technician will visually inspect the electrical components of the system. Any damaged wires, connectors, or fuses will need to be replaced. The ground voltage should also be inspected. If no issues are found, the hydraulic pressure sensor must be inspected.
After replacing a component, the mechanic will need to reset the trouble codes again, restart the vehicle, and check for the code. This will help the mechanic know as soon as the issue is resolved.
Common mistakes when diagnosing code P0932
The most frequent mistake made when diagnosing fault code P0932 stems from a failure to properly follow the OBD-II diagnostic protocol. It is important for mechanics to adhere to the protocol step by step at all times, as this ensures an effective repair and avoids incorrect part replacements. Not following the protocol often leads to replacing a fully functional hydraulic pressure sensor when faulty wiring was the only issue.
How severe is code P0932?
A vehicle with a detected fault code P0932 should still be drivable, although it may experience transmission problems that can impact driving. Continuing to drive a vehicle with this code can cause further damage to the transmission, so it is important to have the vehicle inspected as soon as possible.
What repairs can fix code P0932?
Repairs for fault code P0932 include:
- Replacing wires, connectors, and fuses
- Replacing the hydraulic pressure sensor
- In rare cases, replacing the PCM or TCM