OBD-II code · Powertrain (generic, extended)
P2B68 Coolant Pump D Control Circuit High
Coolant pump D reports a control circuit high condition. Coolant circulation through the affected loop cannot be commanded reliably.
Is it safe to drive with P2B68?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyControl wire shorted to B+
- PossibleOpen pump motor
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Coolant Pump D, Wiring Harness, Ecm
Related codes
- P261DCoolant Pump B Control Circuit High
- P26F6Coolant Pump C Control Circuit High
- P2DF6Coolant Pump E Control Circuit High
- P2B65Coolant Pump B Overspeed/Air in System
- P2B66Coolant Pump D Control Circuit/Open
- P2B67Coolant Pump D Control Circuit Low
- P2B69Coolant Pump D Supply Voltage Circuit
- P2B6ACoolant Pump D Stuck/Stalled
- P2B6BCoolant Pump D Control Module Overtemperature
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.