What does fault code ECM-P032622 mean?

Diagnostic fault code details for ECM-P032622 (Volvo S60 (2011–), Volvo S60 (2011–), Volvo S60 (2011–)). Repair service at OBD Tuning.

VOLVO

ECM-P032622 - Knock Sensor 1 Circuit Range/Performance (Bank 1). General Signal Failures. Signal too high

System

Engine Control Module (ECM)

Volvo models this fault code applies to

Applies to the following models:

10 models

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)

Show models by year and engine (32)

What does this fault code mean?

Knock sensor 1, which registers knock on cylinders 5 to 8, must give a signal within limits that change with engine speed. If the signal is higher than the permitted limit, the fault code is set. The causes are the same as for a signal that is too low: contact, a loose sensor or a damaged sensor.

Possible causes

Contact resistance or oxidation at the knock sensor plug
Loose knock sensor
Damaged knock sensor

What you can do

1Read the fault code, clear it and take a short drive to see whether it returns
2Check that the knock sensor is firmly fitted and has not moved
3Check the knock sensor plug for contact resistance and oxidation
4If you have a diagnostic tool: compare the knock signal in live data at idle and under throttle and see whether it becomes too high in either case
5Have a workshop with diagnostic equipment check and, if needed, replace the knock sensor

Symptoms you may notice4

Poor performance and lack of power, especially when pulling away from standstill
The engine hesitates, surges or runs roughly during acceleration, slowing down and constant speed
Reduced performance
The Check engine light lights up or behaves abnormally

What the fault can affect2

Ignition timing is retarded as a safety measure
Knock control is disabled

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