What does fault code ECM-P001A00 mean?

Diagnostic fault code details for ECM-P001A00 (Volvo S80 (2007–), Volvo S80 (2007–), Volvo V70 (2008–)). Repair service at OBD Tuning.

VOLVO

ECM-P001A00 - Intake (A) Cam Profile Control Circuit / Open (Bank 1). General Failure Information. No sub type information

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

5 models

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

Show models by year and engine (10)

What does this fault code mean?

The engine control module controls the variable cam profiles and monitors the control signal to the cam profile valves on the intake side, bank 1. The code is a general fault with no more specific description, and it is set when the control signal is missing.

Possible causes

Dirty or damaged cam profile solenoid
Poor contact or oxidation in the connections
Open circuit in the supply wire
Open circuit in the signal wire

What you can do

1Read the code, clear it and road test the car to see whether it returns
2Check the connector at the cam profile solenoid for loose or oxidised parts
3Use a multimeter to check that the wires to the solenoid have no open circuit
4Look for chafed or pinched wiring along the harness to the solenoid
5If you have a diagnostic tool: activate the intake-side cam profile control and check that it responds
6If the fault returns: have a workshop clean the cam profile solenoid, or replace it if it still malfunctions

Symptoms you may notice5

Emissions warning lamp lit
Uneven idle
Engine is hard to start
Higher fuel consumption
Reduced performance

What the fault can affect1

The variable cam profile on both banks switches to the low-lift position

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