Volvo TSI, Manual

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Group 28 Design and Function
W2003293
Message 144–091–000–240 in this example, has the following meaning:
A MID 144 — The message comes from the Vehicle ECU.
B PID 091 — The message states the accelerator pedal position percentage.
C Data 000 — The accelerator pedal is in the completely released position.
000 is a data component, which in this case states how much the accelerator pedal has been
pressed down. The value can vary between 000 for a completely released pedal and 255 for a com-
pletely pressed down accelerator pedal.
D Check 240 — The checksum is used as a check that the message is reasonable.
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