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P0932 – Hydraulic Pressure Sensor Circuit (OBD2)

P0932 means "Hydraulic Pressure Sensor Circuit". The control unit has detected a fault in the electrical circuit of the automated manual gearbox hydraulic unit: the signal or control current is missing or outside the expected window. The code does not say whether the value is too high or too low, so the wiring and the component itself both have to be checked.

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P0932 quick summary

Fault codeP0932
MeaningHydraulic Pressure Sensor Circuit
SystemPowertrain (Engine & Transmission)
VehiclesGeneric OBD2
SeverityHigh
Can I drive?Not recommended. Loss of hydraulic pressure can leave the gearbox unable to shift or disengage the clutch.
Repair cost€50 – €1,500

How the hydraulic unit of an automated manual gearbox works

Hydraulically operated automated manual gearboxes use an electric pump, accumulator and sensors to provide pressure for the clutch and shift actuators; these codes cover that hydraulic unit.

An electric pump builds hydraulic pressure that is stored in an accumulator. The control unit monitors the pressure with a sensor and the oil temperature with a temperature sensor, and switches the pump through a relay.

Codes P0932–P0941 cover the hydraulic pressure and oil temperature sensors; P0942–P0948 the hydraulic pressure unit, its cycling time, loss of pressure and the pump relay.

If the pump has to run too often (short cycling) or pressure is lost, the accumulator, seals or pump are worn, or there is a leak.

On VAG vehicles (VW, Audi, Škoda, Seat, Cupra), VCDS and older VAG testers can show this code as the five-digit VAG code 17316 (P0932). Both numbers mean the same fault.

Symptoms of P0932

  • Pump running often or continuously (audible whine)
  • Slow or no gear changes
  • Gearbox warning messages
  • Hydraulic fluid leak
  • Car does not start or move

Most common causes of P0932 (most likely first)

Mechanic's Pro Tip

If the pump runs every time you open the door or every few minutes, the accumulator has usually lost its charge – a much cheaper part than the whole hydraulic unit.

  1. 1.Damaged wire or loose, corroded connector at the automated manual gearbox hydraulic unit

    Most likely

    Green or white corrosion, pushed-back pins and chafed insulation near hot or moving parts are the most common findings.

  2. 2.Faulty automated manual gearbox hydraulic unit

    An internal break or short in the component itself.

  3. 3.Blown fuse or missing supply voltage

    If several codes appeared at the same time, check the shared fuse, relay or ground point first.

  4. 4.Worn accumulator (loses pressure quickly)

  5. 5.Worn hydraulic pump or failed pump relay

  6. 6.Hydraulic fluid leak

Step-by-step diagnostic guide

  1. 1

    Read codes and pressure

    Read the gearbox codes and watch hydraulic pressure and pump activity in live data.

  2. 2

    Check the circuit with a multimeter

    With the ignition off, unplug the automated manual gearbox hydraulic unit and the control unit connector (or back-probe), then check each wire between them for continuity and for shorts to ground and to battery voltage. Compare the component's resistance or supply voltage with the value in the repair manual.

    Multimeter: Wire continuity: below about 1 Ω. Wire to ground with both connectors unplugged: no continuity. Supply/reference with ignition on: usually 5 V for sensors, battery voltage for actuators.

  3. 3

    Check fluid and leaks

    Check fluid level and look for leaks at the unit and lines.

  4. 4

    Check pump and relay

    Check the pump relay and pump current; listen to how often the pump runs.

  5. 5

    Test the sensors

    Check the pressure and temperature sensor signals.

  6. 6

    Repair and calibrate

    Replace the accumulator, pump or sensor and run the gearbox learning procedure.

Frequently asked questions

Can I keep driving with P0932?

Not recommended. Loss of hydraulic pressure can leave the gearbox unable to shift or disengage the clutch.

How much does it cost to fix P0932?

Typical repair costs are 50 € – 1500 €, depending on the cause and the vehicle. The most common fixes are: damaged wire or loose, corroded connector at the automated manual gearbox hydraulic unit; faulty automated manual gearbox hydraulic unit; blown fuse or missing supply voltage. Always confirm the cause with the tests above before buying parts.

Why does the gearbox pump run so often?

Usually the accumulator or a seal is worn, so the pressure drops quickly and the pump must recharge it.

Can the hydraulic unit be repaired?

Often yes – accumulators, pumps and sensors are available separately or through specialist repairers.

What is the difference between P0932 and similar codes?

P0932 belongs to a group of codes for the same component that differ in the type or location of the fault: P0933 – Hydraulic Pressure Sensor Range/Performance; P0934 – Hydraulic Pressure Sensor Circuit Low Input; P0935 – Hydraulic Pressure Sensor Circuit High Input; P0936 – Hydraulic Pressure Sensor Circuit Intermittent; P0937 – Hydraulic Oil Temperature Sensor Circuit; P0938 – Hydraulic Oil Temperature Sensor Range/Performance. The tests on this page apply to the whole group; the type of fault tells you where to start.

Related fault codes

This guide is for information only. Working on vehicles can be dangerous — if you are unsure, have the car checked by a qualified mechanic. Values can differ between model years; always check the manufacturer's repair information.