P2E64
Engine Coolant Bypass Valve E Control Circuit High
The engine coolant bypass valve E reports a control circuit high condition. Coolant routing on this branch cannot be commanded reliably.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Wire shorted to B+Common
- Open valve actuatorPossible
- Connector pins corroded - high contact resistanceLess likely
Parts involved
- Engine Coolant Bypass Valve E
- Wiring Harness
- ECM
P2E64 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.