P0941 Hydraulic Oil Temperature Sensor Circuit Intermittent

P0941 points to an intermittent hydraulic oil temperature sensor circuit fault. The temperature signal drops out or jumps only under certain conditions.

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 clear intermittent temperature faults without stressing the circuit and reproducing the signal jump.

Symptoms of P0941

Harsh, delayed, or slipping shifts, or being stuck in one gear.
Check-engine light, sometimes with limp-home mode.
Flaring RPM or a shudder under load.

Common causes of P0941

Low or degraded transmission fluid.
A failing speed sensor, shift solenoid, or pressure-control circuit.
Wiring, connector, or internal hydraulic/mechanical faults.

Useful checks before replacing parts

Graph hydraulic oil temperature during warm-up, road vibration, pump operation, heat soak, and harness movement.
Inspect terminal tension, connector locking, internal harness movement, shared reference stability, fluid intrusion, and heat-sensitive opens.
Compare the intermittent temperature signal with pressure unit cycling, shift behavior, and any related pump or actuator codes.

Related OBD-II codes

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