Body, generic

B0570 Passenger Power Seat Forward/Back Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

B0570 is not found in any J2012 list open to the public, nor in published manufacturer material. Its title covers the fore/aft motor of the front passenger seat. The Saab 9-3 passenger seat module shows how such a circuit is policed: B1770 04 for an open output, 0B above 40 A, and 61 when a relay is stuck to ground, detected right after a soft start because the output exceeds 6 V. In the last case the seat no longer moves in the selected direction but still travels the other way; in all cases memory functions stop. As TI's note on memory seats explains, position is commonly tracked by Hall sensors on the motor whose revolutions are converted into seat travel. Driver side: B0560.

Likely causes

Objects under the passenger seat blocking the track
Seat module relay stuck, seat moves one way only
Fore/aft motor open circuit or worn brushes
Connector under the seat loose or corroded

Symptoms

  • Passenger seat does not slide forward or back
  • Seat moves only in one direction
  • Passenger seat memory or easy-entry function unavailable

Repair estimate

DifficultyMediumDIY possible
Parts and labour€100–500
Time1–3.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

passenger seat track motorseat control module

Related codes

B0560B0320B0327

References: saabwisonline.com, saabwisonline.com, saabwisonline.com, ti.com.