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.
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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.
P26B100Engine Coolant Bypass Valve "A" Stuck Closed being stored in the Thermal Management Control Module (00C5)
Manufacturer communications
10Original wording in English
BENTLEY
Engine Management Light - N91 Coolant Valve | Flying Spur Hybrid Technical background: Some 22MY Flying Spur Hybrid vehicles may exhibit an illuminated Malfunction Indicator Lamp (MIL) due to DTC P26B100 - Engine Coolant Bypass Valve "A" Stuck Closed being stored in the Thermal Management Control Module (00C5). When this DTC is …
PORSCHE
Technical information for Check Engine Warning Light Active / Fault Memory Entry "P26B100/00CB24" in the Thermal Management Control Unit (TME): Re-Programming Control Unit
PORSCHE
Instructions on advanced technical information for the Cayenne E-Hybrid - thermal management fault (P26B100) causes a check engine light
PORSCHE
Instructions on advanced technical information for the Cayenne E-Hybrid - thermal management fault (P26B100)
Check vehicle applicability
52A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Bentley | FLYING SPUR HYBRID ↗ | 2022 |
| Porsche | 718 CAYMAN ↗ | 2022 |
| Porsche | 718 CAYMAN GT4 ↗ | 2022 |
| Porsche | CAYENNE ↗ | 2023 |
| Porsche | CAYENNE ↗ | 2022 |
| Porsche | CAYENNE ↗ | 2021 |
| Porsche | CAYENNE ↗ | 2020 |
| Porsche | CAYENNE ↗ | 2019 |
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.