P0237
Turbocharger Boost Sensor A Circuit Low
System: Air/Fuel
Severity: medium
What does P0237 mean?
The DTC P0237 (Turbocharger Boost Sensor A Circuit Low) is a fault code stored by the ECU when it detects a boost sensor low condition in the air/fuel subsystem. It is commonly seen on European and Asian vehicles using Bosch, Continental, Siemens or Denso ECUs.
Common causes of P0237
- Failed sensor (open circuit)
- Short to ground
- Disconnected sensor
How to fix P0237
Check connector first — vibration is the #1 cause. Replace sensor if wiring OK.
Tuning approach with DaVinci Deluxe
For P0237, DaVinci Deluxe offers the following ECU map adjustments and software solutions:
- MAP rescale
- Boost limit safety cap
Need to fix P0237 on your ECU?
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