P2E49Hybrid/EV Electronics Coolant Pump B Stuck/Stalled
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2E49 reports that electronics coolant pump B is powered and commanded, but its rotor does not turn or comes to a standstill. Mitsubishi's 2022 Outlander PHEV shows such a test for its electric water pump: with more than 9 V supply the PHEV-ECU sets P10D9 once the reported speed stays under 100 rpm for 0.5 s, against about 500 rpm when healthy. A GM patent (US9599011) checks electric coolant pumps by comparing the measured current with the current expected for the operating point; a blocked rotor shows up as a mismatch. Ford's 2024 summary names the matching failure type actuator stuck (71). No manufacturer publicly documents P2E49. Seized bearings, debris after repairs, frozen coolant and burnt windings are usual causes. Underspeed is P2E47, pump A's stall code P2C68.
- What you may notice
- MIL and hybrid or drive system warning
- Rapid temperature rise in inverter or charger
- Strong power reduction or charging stops
- Likely causes
- LikelySeized bearing or failed pump B motor
- PossibleDebris or sealant residue jamming the impeller
- RareFrozen coolant due to insufficient antifreeze
- RareSupply or ground lost under load
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €150 – €1,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.