What does code P2EAF mean?

Q: What does code P2EAF mean?

Reductant Injection Valve Stuck Closed Bank 1 Unit 2. P2EAF indicates that the powertrain control module has commanded the reductant injection valve for bank 1 unit 2 to open, but the circuit or valve response indicates it remains stuck closed. This prevents diesel exhaust fluid from being injected into the exhaust stream for that unit, which can quickly trigger emissions system derates and limit vehicle operation.

DTC codes / P2Exx · Hybrid propulsion / P2EAF

P2EAFReductant Injection Valve Stuck Closed Bank 1 Unit 2

P2EAF indicates that the powertrain control module has commanded the reductant injection valve for bank 1 unit 2 to open, but the circuit or valve response indicates it remains stuck closed. This prevents diesel exhaust fluid from being injected into the exhaust stream for that unit, which can quickly trigger emissions system derates and limit vehicle operation.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.