Reading off input and output signals

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Using this function, the values and status of the control module input and output signals can be continuously read off.

NOTE: To obtain the relevant values, the engine must be running and the engine control module (ECM) must be initiated. The engine control module (ECM) is initiated the first time engine speed exceeds 600 RPM.

The following parameters can be read off:

Engine speed (RPM), value
Load signal, value
Throttle position (TP) sensor, position
Torque limiting, value
Transmission type
Control module initialization, status
DSA function, status
DSA switch, status
DSA warning lamp, lit status
DSA warning lamp, flash status
Stop (brake) light switch, status
The value for the left front wheel speed
The value for the right front wheel speed
The value for the left rear wheel speed
The value for the right rear wheel speed
Left front wheel adaptation, value
Right front wheel adaptation, value
Left rear wheel adaptation, value
Right rear wheel adaptation, value
Wheel adaptation permitted, status.

For further information about parameters, see Reading off parameters .