Body, generic

B0327 Passenger Seat Position Memory

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

No known public list or manufacturer document defines B0327. The title is vague: it suggests a fault in storing or restoring positions of a power passenger seat. For that a module needs working position feedback; in Saab's 9-3 passenger seat module a lost slide sensor signal (B2375) switches off all memory functions and erases the end-stop calibration. US4264849A shows stored positions recalled by push buttons for any vehicle seat, and US6320341B1 restores several cushion and backrest positions from pulse counts. Without a manufacturer definition the exact trigger is unknown; it likely corresponds to lost stored data or failed recall.

Likely causes

Missing position feedback from a passenger seat motor
Stored positions lost after battery disconnection or low voltage
End stops not relearned after seat or motor replacement
Passenger seat module memory faulty

Symptoms

  • Passenger seat does not return to its stored position
  • Stored settings forgotten after the ignition is switched off

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–500
Time0.3–2.5 h

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

Parts involved

seat moduleseat position sensor

Related codes

B0320B0325

References: saabwisonline.com, patents.google.com, patents.google.com.