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 authorize major transmission work from P0755 alone; solenoid control, fluid condition, and companion codes need review.
Useful checks before replacing parts
- Review commanded gear, actual gear, solenoid B state, input speed, output speed, and related ratio codes.
- Check fluid level and condition, solenoid B wiring, connector condition, internal harness, and transmission case connector.
- Identify whether the fault is electrical at key-on or performance-related during a specific shift.
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.