P0934 Hydraulic Pressure Sensor Circuit Low

P0934 indicates the hydraulic pressure sensor circuit is low. The sensor signal is below expected range or pulled toward ground.

Code details

Generic OBD-II · P0
System
Transmission
Code type
Generic (SAE / ISO controlled)
Standard
SAE J2012 / ISO 15031-6

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not assume true low hydraulic pressure until the low sensor signal is electrically confirmed.

Symptoms of P0934

Common causes of P0934

Useful checks before replacing parts

Related OBD-II codes

These nearby transmission entries can help compare wording and pin down the fault area.