OBD-II code · Powertrain (generic)
P0E20 Hybrid/EV Battery Pack Coolant Control Valve A Control Circuit Driver Current/Temperature Too High
The output driver for hybrid/ev battery pack coolant control valve a reports current or junction temperature above its protection threshold.
Is it safe to drive with P0E20?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyActuator stalled - high stall current
- PossibleControl wire shorted to ground
- Less likelyPack cell imbalance approaching service threshold
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Battery Pack Coolant Valve A, Bms
Related codes
- P0E21Hybrid/EV Battery Pack Coolant Control Valve B Control Circuit Driver Current/Temperature Too High
- P0E22Hybrid/EV Battery Pack Coolant Control Valve C Control Circuit Driver Current/Temperature Too High
- P0E1DHybrid/EV Battery Pack Coolant Pump B Control Performance
- P0E1EHybrid/EV Battery Pack Coolant Pump B Control Circuit Driver Current/Temperature Too High
- P0E1FHybrid/EV Battery Pack Coolant Pump A Control Circuit Driver Current/Temperature Too High
- P0E23Drive Motor Inverter Temperature Sensor G Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.