P0765 Shift Solenoid D Malfunction

P0765 points to shift solenoid D malfunction. The transmission controller detected a fault affecting the solenoid used for a specific hydraulic shift path.

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 authorize internal transmission work from P0765 alone; solenoid data, wiring, fluid, and companion codes matter first.

Symptoms of P0765

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 P0765

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

Review solenoid D command, actual gear, input speed, output speed, shift timing, and related ratio errors.
Check fluid condition, solenoid D wiring, internal harness, connector sealing, and case connector terminal condition.
Determine whether the code appears during a specific shift or immediately as an electrical fault.

Related OBD-II codes

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