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 status

Needs verification

Not yet verified against SAE J2012_202509 / J2012DA. Treat unverified rows as a lookup aid, not repair authority.

System
Transmission
Scope
iso-sae-controlled-p0
Standard
SAE J2012 / ISO 15031-6
Source
legacy-import

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.

Useful checks before replacing parts

Related OBD-II codes

These nearby transmission entries can help compare wording and fault area. They may share the same verification status as the source database.