VOLVO
ECM-P023623 - Turbocharger/Supercharger Boost Sensor A Circuit Range/Performance. General Signal Failures. Signal stuck low
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
1 modelS60 (2011–)
Show models by year and engine (1)
What does this fault code mean?
The boost pressure sensor signal stays constantly low and does not change when the pressure changes. The fault is set when the signal lies below a certain value for a set time. The fault may be in the sensor or in its wiring.
Possible causes
- Contact resistance or oxidation in the connections
- Signal wire shorted to ground
- Damaged boost pressure sensor
What you can do
- 1Read the code, clear it and road test to see whether it returns
- 2If you have a diagnostic tool: read boost pressure in live data at idle and when you give a little throttle. If the value never changes, the signal is stuck
- 3Look at the boost pressure sensor connector and wiring for chafing and loose connections
- 4Use a multimeter to check that the signal wire to the boost pressure sensor is not shorted to ground
- 5Check that the fuses are intact. Fuse locations are shown in the owner's manual
- 6If the fault remains, have a workshop check the boost pressure sensor with diagnostic equipment
Symptoms you may notice1
- The malfunction indicator lamp comes on
What the fault can affect1
- Boost pressure is limited
General guidance for car owners. Diagnosis on the car can point to a different cause.