P0237 on Ford
Turbocharger Boost Sensor A Circuit Low
P0237 on Ford vehicles indicates turbocharger boost sensor a circuit low. Au7o has documented this code across 1 Ford model — most commonly on Transit. This code sets when the turbocharger (or supercharger) boost pressure sensor 'A' reports a voltage that's lower than its normal operating range. That sensor measures how much boost the engine is producing so the computer can correctly control fueling, timing, and the wastegate. A signal that's too low usually means a wiring fault, short to ground, or a failed sensor rather than an actual loss of boost, and the engine may run with reduced power for protection. It generally points to a problem in the sensor or its circuit. Typical repair costs on Ford range from $80 to $3,500, depending on the specific model and root cause.
Common Causes of P0237
- •Faulty turbocharger boost pressure sensor
- •Signal wire shorted to ground
- •Open in the sensor signal or reference voltage wire
- •Corroded or damaged sensor connector
- •Loss of 5-volt reference from the ECM/PCM
- •Disconnected boost pressure reference hose
P0237 on Ford by Model
Ford Transit(2 issues)
- 3.5L EcoBoost Twin Turbocharger Failure2015-2024
The Ford Transit 350/350 HD with the 3.5L EcoBoost twin-turbocharged V6 experiences turbocharger failures from inadequate lubrication, carbon buildup in the turbo housings, wastegate actuator failure, and turbo bearing wear. OMS AutoParts and Autodoc document common Transit turbo problems including loss of power, turbo lag, unusual whistling/whining/grinding noises, and excessive smoke. The commercial use of Transit vans (frequent stop-and-go, high idle hours, heavy loads) accelerates turbo wear beyond what passenger vehicle applications typically experience. FordTransitUSAForum.com documents a case of turbo and manifold failure at 38,000 miles on a 3.5L EcoBoost Transit 350. RepairPal estimates turbocharger assembly replacement between $1,650 and $2,210 depending on the Transit model variant.
- Turbocharger Boost Pressure Sensor / MAP Sensor Failure (2.0L EcoBlue)2020-2023
The 2.0L EcoBlue diesel Transit has a documented pattern of boost pressure sensor and manifold absolute pressure (MAP) sensor failures, causing incorrect boost readings fed to the ECM. When the sensor fails or reads out of range, the ECM defaults to a conservative fueling map, reducing power significantly and triggering a check engine light. This issue is noted in multiple European market TSBs and has been replicated in North American Transit owners' forums with the same engine.
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View P0237 across all makes →Frequently Asked Questions
What does P0237 mean on Ford?▼
P0237 stands for "Turbocharger Boost Sensor A Circuit Low." This code sets when the turbocharger (or supercharger) boost pressure sensor 'A' reports a voltage that's lower than its normal operating range. That sensor measures how much boost the engine is producing so the computer can correctly control fueling, timing, and the wastegate. A signal that's too low usually means a wiring fault, short to ground, or a failed sensor rather than an actual loss of boost, and the engine may run with reduced power for protection. It generally points to a problem in the sensor or its circuit. On Ford specifically, this code is documented across 1 model.
What causes P0237 on Ford vehicles?▼
Common causes on Ford: Faulty turbocharger boost pressure sensor, Signal wire shorted to ground, Open in the sensor signal or reference voltage wire, Corroded or damaged sensor connector, Loss of 5-volt reference from the ECM/PCM. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0237 on a Ford?▼
Repair costs on Ford range from $80 to $3,500, depending on the specific model and root cause.
Which Ford models have P0237 documented?▼
Au7o has documented P0237 on 1 Ford model: Transit.