C1552EPS main power (PIG) supply voltage fault
- Toyota/Lexus code · Power steering
- Lights a warning lamp
- How the car detects it
- The power steering unit measured its main power (PIG) supply voltage out of range, so assistance is reduced. 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
- PossibleWeak battery or charging fault
- PossibleEPS fuse or main power wiring
- RareEPS control unit
- 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.