What does fault code ECM-P211801 mean?

Diagnostic fault code details for ECM-P211801 (Volvo S60 (2011–), Volvo S60 (2011–), Volvo S60 (2011–)). Repair service at OBD Tuning.

VOLVO

ECM-P211801 - Throttle Actuator "A" Control Motor Current Range/Performance. General Failure Information. General electrical failure

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

7 models

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)

Show models by year and engine (20)

What does this fault code mean?

The engine control module has picked up an internal problem, or a problem on the circuit to the throttle motor. It is a general electrical fault, and it may lie in the throttle unit, in the wiring to it or in the engine control module.

Possible causes

Contact resistance or oxidation in the connections between the engine control module and the throttle unit
An open circuit, or a short to ground or supply voltage, in the wiring to the throttle motor
The wires to the throttle motor are shorted to each other
Damaged throttle unit
Damaged engine control module

What you can do

1Check that the fuses are intact
2Read the code, note it down and test drive to see whether it comes back
3Check that the connectors at the throttle unit and the engine control module are not loose and show no oxidation
4Look for chafing and breaks in the wiring to the throttle unit, and use a multimeter to confirm it has no contact with ground or supply voltage
5If the fault remains, have a workshop with diagnostic equipment check the throttle unit and the engine control module

Symptoms you may notice2

The engine lacks power and performs poorly
Uneven idle

What the fault can affect1

The engine control module cuts the supply to the throttle motor, so the throttle goes to its spring-loaded rest position

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