P0C48 code meaning
Hybrid/EV Battery Pack Coolant Pump A Control Circuit Low
Powertrain system Generic code P0Cxx codes Check engine light
What P0C48 means
P0C48 narrows a fault on the control line of battery coolant pump A down to a signal that stays too low, as caused by a short to ground or a driver output that cannot pull the line up. Ford lists the code for the 2020 Explorer, Police Interceptor Utility and Lincoln Aviator with the hybrid powertrain. Bulletins 20-2293 and 20-2345 group it with P0C49, P0C4A, P0C4B, P0CFF, P2B29 and other pump and battery codes that light the MIL and are stored in the PCM; the cause is the software of the battery energy control module, which is reprogrammed. Other makers, GM for instance, cover the same failure inside the broader code P0C47. CARB requires output components of battery thermal management to be checked for circuit faults. If the pump really stops, battery power is limited.
P0C48 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0C48
- MIL on
- Hybrid system message, battery power possibly limited
Common causes of P0C48
- Most likelyBattery control module software (Ford/Lincoln 2020 hybrids, TSB 20-2345)
- PossiblePump control wire shorted to ground
- Less likelyInternal fault in the pump electronics pulling the line low
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Hv battery pack coolant pump aWiring harnessBms
What each part of P0C48 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| C | Area: hybrid propulsion. |
| 48 | The exact fault in that area. |
What to do next
- Note P0C48 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 P0C48
What does P0C48 mean?
P0C48 means "Hybrid/EV Battery Pack Coolant Pump A Control Circuit Low". P0C48 narrows a fault on the control line of battery coolant pump A down to a signal that stays too low, as caused by a short to ground or a driver output that cannot pull the line up. It is a generic code, so it means the same on every make.
Is it safe to drive with P0C48?
Drive gently and only to a workshop. With P0C48 the car can go into limp mode (reduced power) to protect itself.
Will P0C48 fail an emissions test?
Yes, it can. P0C48 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 P0C48 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will P0C48 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.