P2377

Turbocharger/Supercharger Inlet Pressure Sensor B Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Loss of engine power
Check Engine Light Illuminates
Engine transition to emergency mode
Unstable engine operation
Increased fuel consumption

Causes

Boost pressure sensor B malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Wiring harness damage
Engine ECU malfunction

How to Fix

Check the condition of the boost pressure sensor B
Check the integrity of wiring and connectors
Measure resistance and sensor signal
Check the power and ground of the sensor circuit
If necessary, replace the sensor or repair the wiring

Related codes

P2376 P2378 P0238