Body, generic

B0532 Left Rear Door Lock Actuator Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

Public J2012 lists do not include B0532. At GM it exists only as an undefined keyword in PIP5094, the general circuit-testing bulletin for GM cars and light trucks up to model year 2014. Its title refers to the lock motor in the left rear door. Rear doors carry an extra duty here: FMVSS 206 requires each rear side door to have a lock that, when engaged, also blocks the inside handle. The Saab 9-3 places this motor under the left rear door module and logs B3135 02 when the module input reads a short to ground during locking; after the fault clears the motor tries again. A failed rear actuator usually leaves that one door out of step with the rest of the car. Right rear: B0533.

Likely causes

Left rear lock motor worn or jammed
Broken wire in the left rear door boot
Latch linkage stiff from dirt or corrosion
Rear door or body module output faulty

Symptoms

  • Left rear door does not follow central locking
  • Vehicle cannot be fully secured from outside
  • Inside handle locking at that door may not work

Repair estimate

DifficultyMediumDIY possible
Parts and labour€80–400
Time1–3 h

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

Parts involved

left rear door lock actuatorbody control module

Related codes

B0530B0531B0533B0272

References: static.nhtsa.gov, saabwisonline.com, law.cornell.edu, patents.google.com.