What does fault code ECM-P001800 mean?

Diagnostic fault code details for ECM-P001800 (Volvo S60 (2011–), Volvo S60 (2011–), Volvo S80 (2007–)). Repair service at OBD Tuning.

VOLVO

ECM-P001800 - Crankshaft Position - Camshaft Position Correlation - Bank 2 Sensor A. General Failure Information. No sub type information

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

7 models

S60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)

Show models by year and engine (15)

What does this fault code mean?

The engine control module compares the camshaft position with the crankshaft position and adjusts the adaptation when they do not agree. It is a general fault with no more specific description, and it concerns bank 2, sensor A. The code is set when the adaptation rises or falls beyond a certain value, and

Possible causes

Poor quality engine oil
Incorrectly set camshafts
Faulty camshaft control valve
Damaged VVT unit
Damaged or worn timing chain
Camshaft drive has skipped teeth

What you can do

1Read the code and note whether it is active right now or only stored
2If you have a diagnostic tool: read the intake camshaft adaptation for bank 2 in live data with the engine running
3Check the engine oil level and quality, especially if it may be contaminated
4Have a workshop check the camshaft basic setting and that the camshaft drive has not skipped teeth
5Have a workshop clean the intake camshaft control valve, or try a new one if that does not help
6If the fault returns: have a workshop check the VVT unit

Symptoms you may notice5

Uneven idle
Engine stalls while driving
Engine misfires
Engine is hard to start
Check engine lamp lit or behaving abnormally

What the fault can affect1

The control module uses a fixed value for the camshaft adaptation

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