What does fault code ECM-P015200 mean?

Diagnostic fault code details for ECM-P015200 (Volvo S80 (2007–), Volvo S80 (2007–), Volvo S80 (2007–)). Repair service at OBD Tuning.

VOLVO

ECM-P015200 - O2 Circuit High Voltage (Bank 2, Sensor 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 (13)

What does this fault code mean?

Using the front oxygen sensor in bank 2, the engine control module (ECM) measures the oxygen content before the catalytic converter. The control module checks the sensor's direct voltage and sets the code when an incorrect value lasts for a while. The code is set when the fault recurs over two or more driving cycles in a row, and a higher voltage than expected in the signal is one of the possible causes.

Possible causes

Contact resistance and oxidation in the connections
Signal wire shorted to supply voltage
Damaged front oxygen sensor in bank 2

What you can do

1Read the code, clear it and road test the car to see whether it comes back
2Check that the connectors at the front sensor in bank 2 are fully engaged and free from oxidation
3Use a multimeter to check that the signal wire has no contact with battery voltage
4If the connectors and wire are intact, replace the front oxygen sensor in bank 2

Symptoms you may notice2

Malfunction indicator light (MIL) on
Poor performance

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