What does fault code ECM-P160346 mean?

Diagnostic fault code details for ECM-P160346 (Volvo S80 (2007–), Volvo S80 (2007–), Volvo V70 (2008–)). Repair service at OBD Tuning.

VOLVO

ECM-P160346 - ID Number Unregistered. System Internal Failures. Calibration / parameter memory failure

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 (8)

What does this fault code mean?

The engine control module (ECM) has detected an internal fault in its EEPROM memory, which holds calibration and parameter data. Although the code is described as ID number unregistered, the condition concerns the memory function itself.

Possible causes

Communication interference
Damaged engine control module (ECM)

What you can do

1Check that the fuses for the engine control module are intact. Their locations are given in the owner's manual
2Test relevant functions in the car, for example with buttons, controls or a short road test, to see whether the fault is present now
3Read off the fault codes, clear the fault code, switch the ignition on and wait a while so the control module can run its test
4If none of the symptoms can be reproduced, the fault may have been temporary, or the control module does not detect it at the moment
5If the fault code returns: have a workshop replace the engine control module (ECM)

Symptoms you may notice5

The engine does not start
The engine stalls, sometimes or all the time
The engine performs poorly and lacks power, especially when pulling away from standstill
The engine hesitates, surges or runs unevenly during acceleration, deceleration or steady speed
A warning symbol and a text message appear in the display

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