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.
Narrow by vehicle
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.
P26A6Engine Coolant Bypass Valve Position Sensor Circuit Low
P26A6Engine Coolant Bypass Valve “A” Position Sensor Circuit Low
Manufacturer communications
2Original wording in English
SUBARU
This Bulletin announces the Service Manual Correction for the diagnostic procedures to be followed when performing diagnostic repairs for diagnostic trouble codes (DTCs) P26A6 (Engine Coolant Bypass Valve “A” Position Sensor Circuit Low) and P26A7 (Engine Coolant Bypass Valve “A” Position Sensor Circuit High). Refer to the servi…
RAM
"Broken Internal Coolant Valve Gear **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● P26A3 - Engine Coolant Bypass Valve A Range-Performance. ● P26A6 - Engine Coolant Bypass Valve Position Sensor Circuit …
Check vehicle applicability
31A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ram | 1500 ↗ | 2023 |
| Ram | 1500 ↗ | 2022 |
| Subaru | CROSSTREK ↗ | 2025 |
| Subaru | CROSSTREK ↗ | 2024 |
| Subaru | CROSSTREK ↗ | 2023 |
| Subaru | CROSSTREK ↗ | 2022 |
| Subaru | CROSSTREK ↗ | 2021 |
| Subaru | FORESTER ↗ | 2025 |
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.