Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0C28Auxiliary Transmission Fluid Pump High Current
Manufacturer communications
5Original wording in English
FORD
Some of the vehicles listed in the Model statement above equipped with lithium-ion phosphate (LFP) standard range battery with minor feature code HTHAH may exhibit an illuminated powertrain malfunction indicator (wrench) lamp with the DTC P0C28 stored in the SOBDMC
FORD
Some 2013-2017 Fusion Energi and C-Max Energi vehicles may exhibit an illuminated MIL with DTC P0C27 and/or P0C28. Follow the Service Procedure steps to correct the condition.
CADILLAC
18199 - Service Update - Software that controls the electric motor for the auxiliary transmission fluid pump has a fault in the logic used for restarting the pump. During a pump restart attempt, motor current over threshold can occur resulting in DTC P0C28 (Auxiliary Transmission Fluid Pump High Current). Additionally, DTC P0B07…
FORD
Energi - Malfunction Indicator lamp (MIL) with diagnostic trouble code (DTC) P0C27 AND/OR P0C28
Check vehicle applicability
16A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Cadillac | CT6 PLUG-IN HYBRID ↗ | 2018 |
| Cadillac | CT6 PLUG-IN HYBRID ↗ | 2017 |
| Ford | C-MAX ↗ | 2017 |
| Ford | C-MAX ↗ | 2016 |
| Ford | C-MAX ↗ | 2015 |
| Ford | C-MAX ↗ | 2014 |
| Ford | C-MAX ↗ | 2013 |
| Ford | C-MAX ENERGI ↗ | 2016 |
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.