P2D07 code meaning
Motor Electronics Coolant Pump B Underspeed
Powertrain system Generic code P2Dxx codes Check engine light
What P2D07 means
P2D07 is the underspeed report for the second motor electronics pump: B is moving, so it is not stalled as in P2D05, yet its actual speed stays well short of the request for too long. Friction in a worn bearing, a partly obstructed impeller, a pump motor that has lost strength or a supply that drops when the pump draws current are the usual chain of suspects. No manufacturer publicly documents P2D07. The closest published logic is Ford's: its 2024 summary keeps under-speed (B2) as a distinct fault type for auxiliary pumps, checked continuously above 11 V for 5 s, and its 2020 hybrids store the pump A version, P2D02. CARB wants the electronic outputs that cool the inverter checked for function. Measure supply and ground under load before replacing the pump. Temperatures climb and power may be capped.
P2D07 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2D07
- Warning lamp on
- Pump B speed in live data clearly below the target value
- Power limitation during long climbs or towing
Common causes of P2D07
- PossibleWorn bearing or friction inside pump B
- PossibleImpeller partly obstructed by deposits or debris
- PossibleHigh resistance in feed or ground causing the voltage to sag under load
- Less likelyPump motor or its electronics losing performance with age
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Motor electronics coolant pump bPower electronics coolant loop
What each part of P2D07 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 07 | The exact fault in that area. |
What to do next
- Note P2D07 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2D07
What does P2D07 mean?
P2D07 means "Motor Electronics Coolant Pump B Underspeed". P2D07 is the underspeed report for the second motor electronics pump: B is moving, so it is not stalled as in P2D05, yet its actual speed stays well short of the request for too long. It is a generic code, so it means the same on every make.
Is it safe to drive with P2D07?
Drive gently and only to a workshop. With P2D07 the car can go into limp mode (reduced power) to protect itself.
Will P2D07 fail an emissions test?
Yes, it can. P2D07 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2D07 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P2D07 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.