P258E
PTO Enable Switch Performance
The PTO enable switch is electrically intact but its state does not match operating conditions — for example asserted while the vehicle is rolling above the PTO speed limit, or asserted/de-asserted in fast succession. The ECM rejects the request to avoid unsafe PTO engagement.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Switch contact bounceCommon
- Switch operated while vehicle is movingPossible
Parts involved
- Pto Enable Switch
P258E is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.