P0E76
Coolant Bypass Valve A Performance
The coolant bypass valve A reports a performance condition.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Valve mechanically stuckCommon
- Scale buildup in coolant pathPossible
Parts involved
- Coolant Bypass Valve A
- Wiring Harness
P0E76 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.