What does fault code ECM-P081A11 mean?

Diagnostic fault code details for ECM-P081A11 (Volvo S60 (2011–), Volvo S60 (2011–), Volvo S80 (2007–)). Repair service at OBD Tuning.

VOLVO

ECM-P081A11 - Starter Disable Circuit Low. General Electrical Failures. Circuit short to ground

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

5 models

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

Show models by year and engine (12)

What does this fault code mean?

The fault concerns a short to earth on the signal wire to the starter relay. The ECM watches the voltage on this wire and sets the code when it stays below a set threshold for a set time. The fault is checked when the engine is started.

Possible causes

Signal wire shorted to earth
Chafing, looseness or open circuit in the signal wire
Damaged starter relay
Open circuit in the feed to the starter motor
Damaged control module

What you can do

1Check that the fuses are intact. The locations are shown in the instruction manual or on the fuse list
2Use a multimeter to check that the signal wire to the relay has no contact with earth (the body)
3Check that the wire has not rubbed against the body or an edge where it passes, and that the connectors are firmly seated
4Check that the starter relay is intact and firmly fitted in its mounting
5Read off the fault code, erase it and start the engine to see whether it returns
6If the fault remains after these checks, have a workshop investigate the engine control module

Symptoms you may notice1

The engine does not start, and this may happen always or only sometimes

What the fault can affect1

Only manual starting is possible

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