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 replace only the solenoid without checking hydraulic contamination and valve-body sticking; a stuck-on symptom may be mechanical.
Useful checks before replacing parts
- Monitor solenoid A command, actual gear, ratio calculation, shift timing, and pressure data during the affected shift.
- Inspect for contaminated fluid, valve-body sticking, solenoid mechanical sticking, wiring shorts, or control-driver faults.
- Check companion ratio and shift codes to understand which gear path is affected.
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.