OBD-II code · Powertrain (generic)
P0D1D Hybrid/EV Battery Pack Coolant Control Valve B Control Circuit Low
The HV battery pack coolant control valve B reports a control circuit low condition. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with P0D1D?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyWire shorted to ground
- PossibleCoil internal short
- Less likelyConnector pins corroded - high contact resistance
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
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Battery Pack Coolant Valve B, Wiring Harness, Bms
Related codes
- P0CE2Hybrid/EV Battery Pack Coolant Control Valve A Control Circuit Low
- P0DEBHybrid/EV Battery Pack Coolant Control Valve C Control Circuit Low
- P0D1AHybrid/EV Battery Pack Coolant Control Valve B Control Circuit/Open
- P0D1BHybrid/EV Battery Pack Coolant Control Valve B Performance/Stuck Off
- P0D1CHybrid/EV Battery Pack Coolant Control Valve B Stuck On
- P0D1EHybrid/EV Battery Pack Coolant Control Valve B Control Circuit High
- P0D1FControl Module Date/Time Synchronization Error
- P0D20Battery Charger A Output Voltage Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.