It appears the blower resistor pack has failed or become unseated. It can be disturbed by a foot. The resistor pack is in the negative line to the motor. On position 4 the resistor pack is bypassed whilst on positions 1 - 3 a different resistor is inserted to limit the current and make the motor run slower.
9NNn. 62wkye5a3z.pages.dev/34062wkye5a3z.pages.dev/26862wkye5a3z.pages.dev/10262wkye5a3z.pages.dev/32962wkye5a3z.pages.dev/13862wkye5a3z.pages.dev/8062wkye5a3z.pages.dev/23062wkye5a3z.pages.dev/22862wkye5a3z.pages.dev/299
fiat ducato 2.3 multijet 130 ps probleme