VOLVO
ECM-P024E00 - Intercooler Bypass Valve Position Sensor, Circuit Low. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsS80 (2007–), V70 (2008–)
Show models by year and engine (2)
What does this fault code mean?
The engine control module (ECM) drives the bypass valve with a PWM signal. The fault is set when the control module registers a fault on that signal, or when the end stage for the valve becomes too hot. The end stage is built into the control module.
Possible causes
- Loose contact, contact resistance or oxidation in the connections
- Signal wire shorted to ground
- Open circuit in the supply voltage
- Open circuit in the signal wire
- Damaged bypass valve
What you can do
- 1Read the code, clear it and road test to see whether it returns
- 2Check that the connector to the bypass valve is secure and clean
- 3Use a multimeter to check that the supply to the bypass valve is not broken
- 4If you have a diagnostic tool: activate the bypass valve and listen for it moving
- 5Check that the fuses are intact. Fuse locations are shown in the owner's manual
- 6If the fault remains, have a workshop check the bypass valve with diagnostic equipment
Symptoms you may notice4
- The car feels poor to drive, with reduced performance and lack of power
- The car hesitates, surges or runs jerkily
- Warning symbol and text message in the display
- The check engine lamp comes on or behaves abnormally
General guidance for car owners. Diagnosis on the car can point to a different cause.