What does fault code ECM-P157300 mean?

Diagnostic fault code details for ECM-P157300 (Volvo S60 (2011–), Volvo S60 (2011–), Volvo S60 (2011–)). Repair service at OBD Tuning.

VOLVO

ECM-P157300 - Throttle Position Not Available. General Failure Information. No sub type information

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 (39)

What does this fault code mean?

Signals from the two position sensors in the throttle body are checked by the ECM, and the code is set when both sensors are faulty. The code never appears alone, but together with another fault code for the throttle position sensors, so troubleshooting is based on that code.

Possible causes

The cause may be among other stored fault codes for the throttle position sensors in the engine control module

What you can do

1Read the fault codes in the engine control module and start with the code for the throttle position sensor, since this code appears together with it.
2Check the connectors at the throttle body for looseness, contact resistance and corrosion.
3If you have a diagnostic tool, read the throttle position sensor values in live data with the ignition on, and check that the value changes when the accelerator pedal is pressed.
4Clear the fault codes once the faults are corrected, and check that they do not return.
5If the fault remains, have a workshop check the throttle body.

Symptoms you may notice5

The engine performs poorly
The engine lacks power or performs poorly, for example when moving off from standstill
The engine hesitates, surges or runs unevenly, and this may be noticeable all the time or only now and then
The cruise control does not work at all or cannot be engaged
The check engine lamp lights or behaves abnormally

What the fault can affect2

The power to the throttle motor is switched off, so the throttle goes to its spring-return position
The cruise control is switched off for as long as the fault is active

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