P26CC code meaning
Engine Coolant Pump Control Circuit Low
Powertrain system Generic code P26xx codes Check engine light
What P26CC means
P26CC reports that the circuit controlling the engine coolant pump stays at too low a voltage while the pump should be active. Honda uses the code on its two-motor hybrids and calls it a low voltage in the circuit of the electric pump: service bulletin 25-020 (Accord and CR-V Hybrid 2023–2024, Civic Hybrid 2025) explains that moisture in the pump relay can freeze at or below 0 °C, the relay then fails to switch, the MIL comes on and P26CC is stored as soon as the car is started cold. The fix is a revised relay, after checking the intake air temperature in the freeze frame. Under CARB's OBD rule, output components need a circuit check. Other causes are a short to ground or a missing supply. While the pump does not run, the engine warms up unevenly.
P26CC at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.2 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P26CC
- Check engine lamp on after a cold start
- Poor cabin heating or rising engine temperature
Common causes of P26CC
- Most likelyMoisture inside the pump relay freezing in cold weather
- PossiblePump control or supply wire shorted to ground
- Less likelyBlown fuse or poor supply to the relay
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Engine coolant pumpPump relayWiring harness
What each part of P26CC means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 6 | Area: computer (engine control module) and output circuits. |
| CC | The exact fault in that area. |
What to do next
- Note P26CC 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 P26CC
What does P26CC mean?
P26CC means "Engine Coolant Pump Control Circuit Low". P26CC reports that the circuit controlling the engine coolant pump stays at too low a voltage while the pump should be active. It is a generic code, so it means the same on every make.
Is it safe to drive with P26CC?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P26CC fail an emissions test?
Yes, it can. P26CC 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 P26CC to fix?
Difficulty: easy. A typical repair takes 0.2 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P26CC clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.