Subaru B1105: Key Interlock Circuit Abnormal

Is your scanner showing Subaru B1105?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Subaru B1105: Key Interlock Circuit Abnormal

OVERVIEW
Severity
:
High
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$150-$230
Can I Still Drive?
:
Yes (Short-term only)

What Does The Subaru B1105 Code Mean?

Key interlock circuit is shorted to ground. Key interlock does not keep lock condition.

What Are The Potential Causes Of The Subaru B1105 Code?

  • Loose wiring harness connection.
  • Defective key interlock solenoid.
  • Bad wiring harness.
  • Open or short circuit between body integrated unit and ground.

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Testing and Inspection for B1105 – 2009 Subaru Impreza Repair Manual, pages 3380-3381.

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