What does fault code ECM-P021900 mean?

Diagnostic fault code details for ECM-P021900 (Volvo C30 (2007–2013), Volvo S40 (2004–2013), Volvo S60 (2011–)). Repair service at OBD Tuning.

VOLVO

ECM-P021900 - Engine Overspeed Condition. General Failure Information. No sub type information

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

9 models

C30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–)

Show models by year and engine (11)

What does this fault code mean?

The engine control module (ECM) monitors engine speed and has registered that the engine has been run above its permitted speed. The code is general and does not specify a particular type of fault. The cause may be a missed gear change, or engine oil that has entered the intake manifold or the cylinder bores, and contaminated engine oil is also a possible cause.

Possible causes

Missed gear change causing the engine to overspeed
Engine oil in the intake manifold or in the cylinder bores
Contaminated engine oil

What you can do

1Read the code, clear it and road test to see whether it returns
2Check that the fuses are intact. Fuse locations are shown in the owner's manual
3Think back to whether you missed a gear when the fault appeared, or whether the shift was stiff
4Check the engine oil level and condition, and look for oil in the intake hoses
5If you have a diagnostic tool: follow engine speed in live data at idle and check that it stays steady
6If the fault remains, have a workshop check the engine with diagnostic equipment

Symptoms you may notice3

High or unsteady idle
Warning symbol and text message in the display
The car feels poor to drive, with reduced performance and lack of power

General guidance for car owners. Diagnosis on the car can point to a different cause.