Coolant Pump B Control Circuit High

Where it lives

For P261D, the pump sits on the circuit this code reports. The description of P261D reports a fault at the pump.

Check these first

• An open in the coolant pump B control circuit
• A coolant pump B that draws no current
• A loose or corroded pump B connector
• A missing ground at coolant pump B

What to do next

1. Read coolant pump B control voltage on a scan tool
2. Test the pump B control circuit for an open
3. Check the pump B connector and ground
4. Measure pump B current draw when commanded
5. Replace coolant pump B if the circuit tests good
6. Clear the code and retest

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