Volvo All Engines (2010 Emissions) Fault Code: SPN 91 FMI 3 PID: Accelerator Pedal Position 1

The pedal message is used to calculate fuel injection.
The J1587 and J1939 serial data lines are used as the standard communication link for on-board vehicle instrumentation, off-board service diagnostics and fleet management.
The (VECU) Vehicle Electronic Control Unit is linked to the Engine Control Module (ECM) via these data lines.

Conditions for diagnostic trouble code (DTC):
1) The voltage at pin A17.PB:8 is more than 4.7?V

Observable symptoms
1) The engine does not respond when accelerator pedal is pressed.
2) Missing kick-down effect

Probable cause
1) Connector
2) Accelerator pedal, Sensor
3) Signal wire, Short circuit to higher voltage
4) Open circuit, Ground wire