C1534EPS unit memory (EEPROM) fault
- Toyota/Lexus code · Power steering
- Lights a warning lamp
- How the car detects it
- The power steering unit can't read or write its internal memory. Check its power, ground and connectors before replacing it. When the power steering limits or stops its assistance, the steering becomes heavy but still works mechanically.
- What you may notice
- P/S (power steering) warning light
- Heavy steering
- Likely causes
- PossibleEPS control unit
- RarePoor power or ground connection
- Sources
Backed by at least two independent sources.
From Obdaryn's Toyota/Lexus pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.