U0588Invalid Data Received From Transmission Fluid Pump Module A
- Generic OBD-II code · Network
- Can trigger limp mode
- How the car detects it
- An electric transmission fluid pump keeps clutch and line pressure up while the engine is stopped by start-stop or in electric hybrid driving. Many such pumps have their own electronics and report speed, current and faults to the transmission or hybrid controller. U0588 means those reports arrive but cannot be trusted. Ford's 2014 OBD code list includes U0588 as a continuously monitored code without MIL. The lost-communication partner U0287 is better documented: Jeep sets it with MIL and limp mode on Wrangler and Grand Cherokee 4xe and replaces the in-pan pump, Hyundai on the Santa Fe and Tucson 2.5 with 8-speed automatic, where Idle Stop and Go stops working. Invalid data usually leads to the same reactions.
- What you may notice
- Start-stop function disabled
- Service transmission or hybrid system message
- Limp mode with limited gears on some hybrids
- Likely causes
- LikelyElectric pump or its integrated controller faulty
- PossiblePump connector not fully latched or wet
- RarePump and transmission controller software not matched
- Repair
- Hard · Usually a job for a workshop.Typical cost: €150 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.