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P0932 OBD-II Trouble Code: Hydraulic Pressure Sensor Circuit

diagnostic check engine light

P0932 code definition

The P0932 trouble code detects a circuit malfunction in the hydraulic pressure sensor.

What the P0932 code means

The P0932 code is a standard OBD-II trouble code that signals an electrical issue with the hydraulic pressure sensor. The hydraulic pressure system is used to aid gear shifts in the automatic transmission. When the vehicle needs to upshift or downshift, different hydraulic circuits associated with different gears will engage or disengage to facilitate the shift. The hydraulic pressure is controlled by the powertrain control module (PCM) and transmission control module (TCM), which rely on numerous engine factors to determine shift strategy. The pressure is then monitored by the PCM by way of the hydraulic pressure sensors. When the PCM notices an error with the signal from the hydraulic pressure sensor, then the P0932 trouble code will be detected.

What causes the P0932 code?

The P0932 trouble code is usually caused by defective electrical components, such as shorted wires, open or corroded cables, blown fuses, or even a loss of ground. It’s also possible for the code to be triggered by a faulty hydraulic pressure sensor, or a malfunctioning PCM or TCM.

What are the symptoms of the P0932 code?

The P0932 trouble code will usually be accompanied by the check engine soon warning light illuminating on the vehicle’s instrument panel. There will likely be transmission issues as well, such as harsh shifting, or an inability to access certain gears (this may result in higher-than-usual engine speed, or hesitant acceleration). It’s common for the vehicle to experience a decrease in fuel efficiency as well.

How does a mechanic diagnose the P0932 code?

The P0932 code will be diagnosed using a standard OBD-II trouble code scanner. A trustworthy mechanic will use the scanner to see the freeze frame data for the code, and to search for the presence of any additional trouble codes. If multiple trouble codes are found, then they will need to be addressed in the order in which they appear on the scanner. The codes will then need to be reset, and the vehicle restarted, so the mechanic can see if the P0932 code remains detected. If the code does not return, then an intermittent error, or an erroneous trigger should be suspected.

If the P0932 code remains detected following the reset, the technician will visually inspect the electrical components in the system. Any damaged wires, connectors, or fuses will need to be replaced. The ground voltage should be inspected as well. If no issue is found, the hydraulic pressure sensor should be inspected.

After any component is replaced, the mechanic will need to again reset the trouble codes, restart the vehicle, and check for the presence of the code. This will help the mechanic know as soon as the problem is fixed.

Common mistakes when diagnosing the P0932 code

The most commonly made error while diagnosing the P0932 trouble code comes from a failure to properly follow the OBD-II diagnosis protocol. It is important that mechanics abide by the protocol, step by step, at all times, as this helps guarantee a repair that is both efficient, and devoid of erroneous replacements. Failure to follow the protocol often results in a fully functional hydraulic pressure sensor being replaced, when defective wiring was the only issue.

How serious is the P0932 code?

A vehicle with a detected P0932 trouble code should still be drivable, though it may experience transmission problems that can impact the drivability. Continuing to drive a vehicle with this code can cause further harm to the transmission, so it’s important to have the vehicle inspected as soon as possible.

What repairs can fix the P0932 code?

Repairs for the P0932 trouble code include:

Additional comments for consideration regarding the P0932 code

Replacement of the PCM or TCM is rarely associated with the P0932 code, and should only be considered if all other potential causes have been inspected. If either control module does require replacement, then reprogramming will also be necessary.

Need help with a P0932 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
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