Rear Right Power Window Motor Circuit Malfunction
What does B1103 mean?
The B1103 code means the vehicle's onboard diagnostic system has detected: Rear Right Power Window Motor Circuit Malfunction. This is a low severity code.
Common Symptoms
- Rear right window inoperative
- Window motor runs but glass does not move
- Rear right window glass tilted in track
- No response from rear right window switch
- Clicking noise from rear right door panel
Probable Causes (Ranked by Likelihood)
- Failed rear right window motor Very High
- Broken rear right window regulator High
- Defective rear right window switch Moderate
- Wiring issue in rear right door harness Low
Step-by-Step Diagnostic Procedure
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Operate rear right window from both driver and local switches
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Test voltage at window motor connector
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Check for motor sound when switch is pressed
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Inspect window regulator mechanism for damage
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Check wiring at door hinge area for breaks
Frequently Asked Questions
Why is one rear window more likely to fail than others?
Rear windows are used less frequently than front windows, which means the motor and regulator may seize from lack of use. Regular operation helps keep the mechanism lubricated.
Can a window regulator be lubricated to extend its life?
Yes. Applying silicone spray to the window channels and regulator tracks during regular maintenance can reduce friction and extend the life of the window mechanism.
Is this repair different from the front windows?
The process is similar, but rear door panels may have different clip patterns and slightly less working space. The regulator design may also differ between front and rear doors.