Just a totally wild guess, but it has an electronic throttle, not a throttle cable. Accelerator Pedal Position sensor codes: 00777, 18038 to 18042 (P1630 to P1634). Throttle control unit codes: 17962 (P1554), 17967 (P1559), 17972 (P1564), 17973 (P1565), 17988 ... Login to read more.