P26B7 code meaning
Engine Coolant Bypass Valve C Control Circuit/Open
Powertrain system Generic code P26xx codes Check engine light
What P26B7 means
P26B7 is the basic electrical test of the drive output for coolant bypass valve C, with an open load as its main case. The letter is not tied to one design. Ford defines valve C as the radiator bypass in the 2020–2023 and 2024–2025 editions of its gasoline OBD summary and logs P26B7 (in 2024 also as P26B7_13) once the PCM's smart driver reports an output fault, checked continuously over 5 s. Ford bulletin 16-0052 covers 2013 Escape 1.6L EcoBoost cars built up to 13 February 2013: replace the bypass valve, then reflash the PCM. GM powers its valve C through an H-bridge and stores the code after 4 s of open load within a 5 s window, Type B, in its 2019 L3B table and two 2025 tables. P26B8/P26B9 are the shorted cases. Warm-up and temperature control may suffer.
P26B7 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P26B7
- Check engine light
- Engine warms up slowly or runs warmer than usual
- Valve C stays in its default position
Common causes of P26B7
- Most likelyFailed actuator motor or coil inside bypass valve C
- PossibleUnplugged, corroded or broken connector or drive wire
- PossibleEngine harness chafed through near the valve
- Less likelyOutdated engine control software (Ford 2013 Escape 1.6L)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Coolant bypass valve cSolenoidWiring harness
What each part of P26B7 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. |
| B7 | The exact fault in that area. |
What to do next
- Note P26B7 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 P26B7
What does P26B7 mean?
P26B7 means "Engine Coolant Bypass Valve C Control Circuit/Open". P26B7 is the basic electrical test of the drive output for coolant bypass valve C, with an open load as its main case. It is a generic code, so it means the same on every make.
Is it safe to drive with P26B7?
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 P26B7 fail an emissions test?
Yes, it can. P26B7 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 P26B7 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will P26B7 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.