P261B on Toyota
Coolant Pump "B" Control Circuit Range/Performance
P261B on Toyota vehicles indicates coolant pump "b" control circuit range/performance. Au7o has documented this code across 1 Toyota model — most commonly on Camry. This code sets when the engine control module commands the electric (auxiliary) coolant pump "B" but the circuit's behavior or feedback does not match what is expected for the commanded state. Coolant pump "B" is typically an electric auxiliary pump that helps circulate coolant for engine, turbo, hybrid, or A/C-related cooling. A range/performance fault means the pump or its control circuit is responding sluggishly or incorrectly, which risks overheating if coolant is not moving properly. Typical repair costs on Toyota range from $300 to $750, depending on the specific model and root cause.
Common Causes of P261B
- •Failing or seized electric auxiliary coolant pump
- •Wiring or connector fault in the pump control circuit
- •Corroded or loose pump connector
- •Low coolant level or air in the system
- •Faulty pump relay or power supply
- •Control module (ECM) driver fault (less common)
P261B on Toyota by Model
Toyota Camry(1 issue)
- A25A Electric Coolant (Water) Pump Leak Triggering Check Engine Light (TSB T-TT-0733-23)2018-2024
The 2018+ Camry switched the 2.5L engine to an Aisin electric coolant pump. The pump's seal can leak coolant and the integrated electronics can fault, and because it is electric the first symptom is usually a Check Engine Light rather than a visible puddle. Toyota issued TSB T-TT-0733-23 covering certain 2022-2024 A25A models for water pump leaks / coolant-related DTCs; owners of 2018-2021 cars report the identical failure outside the bulletin window. If ignored, coolant loss can lead to overheating.
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What does P261B mean on Toyota?▼
P261B stands for "Coolant Pump "B" Control Circuit Range/Performance." This code sets when the engine control module commands the electric (auxiliary) coolant pump "B" but the circuit's behavior or feedback does not match what is expected for the commanded state. Coolant pump "B" is typically an electric auxiliary pump that helps circulate coolant for engine, turbo, hybrid, or A/C-related cooling. A range/performance fault means the pump or its control circuit is responding sluggishly or incorrectly, which risks overheating if coolant is not moving properly. On Toyota specifically, this code is documented across 1 model.
What causes P261B on Toyota vehicles?▼
Common causes on Toyota: Failing or seized electric auxiliary coolant pump, Wiring or connector fault in the pump control circuit, Corroded or loose pump connector, Low coolant level or air in the system, Faulty pump relay or power supply. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P261B on a Toyota?▼
Repair costs on Toyota range from $300 to $750, depending on the specific model and root cause.
Which Toyota models have P261B documented?▼
Au7o has documented P261B on 1 Toyota model: Camry.