Blown or open battery charger fuse A; Corroded or loose fuse terminals causing high resistance; Damaged wiring harness between the fuse and the battery charger; Short circuit in the battery charger internal components; Water intrusion or contamination in the fuse box; Faulty battery charger assembly drawing excessive current; Incorrect fuse rating installed during previous service

DTC codes / P0Exx · Hybrid propulsion / P0E2E

P0E2EBattery Charger A Fuse

Q: What does code P0E2E mean?

Battery Charger A Fuse. P0E2E indicates that the powertrain control module has detected a fault in the fuse circuit that protects the high-voltage battery charger, specifically the fuse designated as 'A' for that charger. The computer monitors the charger's power supply and sets this code when the fuse is open, has excessive resistance, or the circuit it protects is drawing abnormal current.

P0E2E indicates that the powertrain control module has detected a fault in the fuse circuit that protects the high-voltage battery charger, specifically the fuse designated as 'A' for that charger. The computer monitors the charger's power supply and sets this code when the fuse is open, has excessive resistance, or the circuit it protects is drawing abnormal current.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaHybrid propulsion

Symptoms you may notice

Illumination of the check engine light or service vehicle soon message
The high-voltage battery may not charge when the vehicle is plugged in
A warning message on the dash indicating a charging system fault
Reduced electric driving range or the vehicle switching to gasoline engine power
The vehicle may refuse to start or enter a limited power mode
Often no symptoms besides the warning light if the fuse is only partially degraded

Common causes, most likely first

Blown or open battery charger fuse A
Corroded or loose fuse terminals causing high resistance
Damaged wiring harness between the fuse and the battery charger
Short circuit in the battery charger internal components
Water intrusion or contamination in the fuse box
Faulty battery charger assembly drawing excessive current
Incorrect fuse rating installed during previous service

How to diagnose and fix it

Verify the code with a scan tool and check for any related charging system codes
Locate the battery charger fuse A in the underhood or high-voltage fuse box and inspect it for continuity
Perform a voltage drop test across the fuse and its terminals to check for resistance
Inspect the wiring harness and connectors between the fuse and the charger for damage or corrosion
Replace the fuse with the correct rating if it is open, then clear the code and retest
If the fuse blows again, isolate the charger from the circuit and check for a short to ground
Test the battery charger with a diagnostic scan tool and follow manufacturer-specific test plans

What a blown charger fuse really tells you

A fuse that blows repeatedly points to a shorted battery charger or a chafed wiring harness rather than a simple fuse failure.
Some vehicles use a pyrofuse or a high-voltage service disconnect that can set this code even when the conventional fuse looks intact.
The code can be set by a momentary overcurrent event during charging, so the fuse may test good but still need replacement if it is internally cracked.
A weak 12-volt battery can cause erratic charging system behavior and set this code indirectly by disrupting module communication.
Always disconnect the high-voltage service plug before inspecting charger fuses to avoid serious electrical shock.

Can I keep driving with P0E2E?

You can usually drive the vehicle if it still starts and runs, but avoid plugging it in to charge until the fault is repaired. If the vehicle enters a reduced power mode or refuses to start, have it towed to a qualified technician.

Tools that help

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