Body, generic

B0601 Mirror Adjustment Passenger Side Circuit

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

B0601 is not covered by the public J2012 lists or by any accessible manufacturer documentation. By title it concerns the adjustment circuit of the passenger exterior mirror; FMVSS 111 only demands that it can be tilted, not remote control from the driving position, yet most are motorised. TI's application brief describes the usual layout: two small brushed motors below 1 A, driven by three half-bridges sharing one common leg. Saab's 9-3 passenger door module logs B1723 02 or B1724 01 for a shorted motor output. GM's 2011 Saab 9-5 drives this mirror from the passenger window switch; an internal fault there sets B154B 39 and suspends mirror movement while it persists, and the stored code clears after 40 cycles.

Likely causes

Passenger mirror motor seized or worn
Shared motor line shorted, affecting both axes
Wire break in the passenger door hinge passage
Passenger door module or window switch electronics faulty

Symptoms

  • Passenger mirror cannot be adjusted electrically
  • Reverse tilt-down or memory position of the mirror missing
  • Driver mirror usually keeps working

Repair estimate

DifficultyMediumDIY possible
Parts and labour€80–450
Time0.5–2.5 h

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

Parts involved

passenger mirror motordoor module

Related codes

B0600B0610

References: saabwisonline.com, saabwisonline.com, saabwisonline.com, law.cornell.edu.