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.
P26A3electric water valve malfunction
P26A3Engine Coolant Bypass Valve A Range-Performance
Manufacturer communications
7Original wording in English
RAM
"Coolant Contamination / Coolant System Flush Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P26A3 - Engine Coolant Bypass Valve A Range-Performance. This bulletin involves flushing the cooling system and replacing the Thre…
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 …
HONDA
Service Bulletin - There is a software problem in the PCM, which may cause the MIL to come on with DTC P26A3 (electric water valve malfunction), DTC P100C (electric VTC motor speed signal circuit malfunction) and/or P0010 (variable valve timing control [VTC] malfunction). There are up to three updates that must be performed on a…
HONDA
Service Bulletin - The MIL is on with DTC P26A3 (electric water valve malfunction).
Check vehicle applicability
6A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Honda | ACCORD PLUG-IN HYBRID ↗ | 2014 |
| Honda | CLARITY ELECTRIC ↗ | 2018 |
| Honda | CLARITY PLUG-IN HYBRID ↗ | 2018 |
| Ram | 1500 ↗ | 2024 |
| Ram | 1500 ↗ | 2023 |
| Ram | 1500 ↗ | 2022 |
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.