P26B7 on Jaguar
Engine Coolant Bypass Valve "C" Control Circuit/Open
P26B7 on Jaguar vehicles indicates engine coolant bypass valve "c" control circuit/open. Au7o has documented this code across 2 Jaguar models — most commonly on F-PACE, XE. This code means the engine computer detected an open (broken) electrical circuit in the control wiring for engine coolant bypass valve 'C', so it cannot properly command that valve. The coolant bypass valve controls coolant flow through the engine to even out temperatures and reduce hot spots, staying closed when cold and opening as the engine warms. If the valve cannot be controlled, the engine can overheat or have poor heater performance, so this should be addressed before it leads to overheating damage. Typical repair costs on Jaguar range from $700 to $1,800, depending on the specific model and root cause.
Common Causes of P26B7
- •Open or broken wiring to the coolant bypass solenoid/valve C
- •Faulty coolant bypass valve/solenoid (internal open)
- •Damaged, corroded, or disconnected connector
- •Blown fuse or poor ground in the control circuit
- •Chafed harness near the engine/bellhousing area
- •PCM/ECM driver fault (rare)
P26B7 on Jaguar by Model
Jaguar F-PACE(1 issue)
- Ingenium Engine Water Pump Failure2017-2023
The Ingenium 2.0L and 3.0L engines in the F-PACE suffer from premature water pump failures. The pump bearing seizes or the impeller separates, causing rapid coolant loss and overheating that can warp the cylinder head if not caught immediately.
Jaguar XE(1 issue)
- Ingenium Water Pump Premature Failure2017-2023
The water pump on the Ingenium 2.0L engine in the XE fails prematurely due to bearing wear and impeller separation. Coolant leaks from the pump weep hole as the seal degrades, eventually leading to complete failure and overheating if not addressed.
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View P26B7 across all makes →Frequently Asked Questions
What does P26B7 mean on Jaguar?▼
P26B7 stands for "Engine Coolant Bypass Valve "C" Control Circuit/Open." This code means the engine computer detected an open (broken) electrical circuit in the control wiring for engine coolant bypass valve 'C', so it cannot properly command that valve. The coolant bypass valve controls coolant flow through the engine to even out temperatures and reduce hot spots, staying closed when cold and opening as the engine warms. If the valve cannot be controlled, the engine can overheat or have poor heater performance, so this should be addressed before it leads to overheating damage. On Jaguar specifically, this code is documented across 2 models.
What causes P26B7 on Jaguar vehicles?▼
Common causes on Jaguar: Open or broken wiring to the coolant bypass solenoid/valve C, Faulty coolant bypass valve/solenoid (internal open), Damaged, corroded, or disconnected connector, Blown fuse or poor ground in the control circuit, Chafed harness near the engine/bellhousing area. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P26B7 on a Jaguar?▼
Repair costs on Jaguar range from $700 to $1,800, depending on the specific model and root cause.
Which Jaguar models have P26B7 documented?▼
Au7o has documented P26B7 on 2 Jaguar models: F-PACE, XE.