Body, generic

B0500 Driver Power Window Circuit Malfunction

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

No public J2012 list includes B0500, and no carmaker documents it, so the code is not verified. The title concerns the driver's power window circuit. Saab handles this under its own numbers: in the 9-3 (2003–2012) the driver door module logs B3205/B3210 for an open, shorted or overloaded down or up path and retries on every new drive cycle; on the 2011 9-5 the BCM sets B3205 for an incompatible, internally failed or unlearned motor, the latter without one-touch travel. In US6906487B2 an H-bridge reads motor current for pinch detection. FMVSS 118 requires a window that closes by itself to reverse before 100 N, so a fault may block automatic closing. Switch faults belong to B0245, the down path alone to B0252.

Likely causes

Window motor worn, sluggish or with a dead spot
Wires broken in the rubber boot between body and door
Regulator or glass runs bind, motor overloads
End positions lost after battery disconnection, relearn needed

Symptoms

  • Driver window does not move or only in one direction
  • One-touch up/down and pinch protection out of action
  • Window stops or reverses partway without reason

Repair estimate

DifficultyMediumDIY possible
Parts and labour€80–500
Time0.5–3 h

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

Parts involved

driver window motordriver window switchdoor modulebody control module

Related codes

B0245B0252B0501U0222

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