P0235 - Turbocharger/Supercharger Boost Sensor A Circuit

Turbo or supercharger boost sensor A circuit fault detected.

Code Overview

Turbo or supercharger boost sensor A circuit fault detected.

Common Causes

• Boost/MAP sensor failure
• Wiring issue
• Connector problem
• Reference voltage fault

Diagnostic Steps

1. Compare boost sensor data to KOEO barometric pressure
2. Verify 5V reference and ground
3. Inspect the sensor port and connector

Likely Repairs & Cost Guides

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

Browse the closest code-family pages when the same fault pattern often shows up nearby.

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.