P0D1EHybrid/EV Battery Pack Coolant Control Valve B Control Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0D1E is the short-to-voltage counterpart for coolant control valve B: the controller sees its drive line high at a moment when it should be low. P0D1E is not described in any public manufacturer document. For valve A, GM documents the matching test on the Chevrolet Volt 2011 and Cadillac ELR 2016: driver line 1 reads high while the valve should be stopped or moving forward, system voltage above 9 V or 10.2 V, 90 out of 100 checks, Type B with the lamp lit on the second trip. Because the check runs in the opposite direction of travel to the low test, the stored code already hints at which wire is affected. Pinched wires touching a supply line or a driver stage that will not switch off are the usual suspects. Battery temperature control falls back to a default. Short to ground is P0D1D, open circuit P0D1A.
- What you may notice
- MIL after two trips (where the maker uses a two-trip code)
- Battery thermal management in fallback mode, charging or power limited
- Likely causes
- LikelyValve B driver wire pinched against a supply line
- PossibleOutput stage in the controlling module stuck high
- RareDamaged or contaminated connector bridging two pins
- 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: €80 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.