P2E49 code meaning
Hybrid/EV Electronics Coolant Pump B Stuck/Stalled
Powertrain system Generic code P2Exx codes Check engine light
What P2E49 means
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.
P2E49 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2E49
- MIL and hybrid or drive system warning
- Rapid temperature rise in inverter or charger
- Strong power reduction or charging stops
Common causes of P2E49
- Most likelySeized bearing or failed pump B motor
- PossibleDebris or sealant residue jamming the impeller
- Less likelyFrozen coolant due to insufficient antifreeze
- Less likelySupply or ground lost under load
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Hybrid electronics coolant pump bPower electronics coolant loop
What each part of P2E49 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 49 | The exact fault in that area. |
What to do next
- Note P2E49 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2E49
What does P2E49 mean?
P2E49 means "Hybrid/EV Electronics Coolant Pump B Stuck/Stalled". P2E49 reports that electronics coolant pump B is powered and commanded, but its rotor does not turn or comes to a standstill. It is a generic code, so it means the same on every make.
Is it safe to drive with P2E49?
Drive gently and only to a workshop. With P2E49 the car can go into limp mode (reduced power) to protect itself.
Will P2E49 fail an emissions test?
Yes, it can. P2E49 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2E49 to fix?
Difficulty: hard. A typical repair takes 1 to 4 hours of work. This is a job for a workshop.
Will P2E49 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.