Lost Communication With Sunroof Control Module
What does U0169 mean?
The U0169 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Sunroof Control Module. This is a low severity code.
Common Symptoms
- Sunroof inoperative
- Sunroof open or close button unresponsive
- Sunroof stuck in open or closed position
- Warning message on instrument cluster
- Automatic rain-close feature not working
Probable Causes (Ranked by Likelihood)
- Failed sunroof control module Very High
- Damaged wiring in headliner or A-pillar High
- Water intrusion in sunroof drain causing module damage Moderate
- Blown fuse for sunroof circuit Low
Step-by-Step Diagnostic Procedure
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Check the sunroof fuse in the interior fuse box
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Inspect wiring at the sunroof motor and module connector
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Check sunroof drain tubes for clogs that could cause water damage
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Verify power and ground at the sunroof module
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Attempt to initialize the sunroof through the key-on procedure
Frequently Asked Questions
Can I drive with code U0169?
Yes, you can drive normally. Only the sunroof operation is affected. If the sunroof is stuck open, cover it to prevent water damage until repaired.
What causes U0169?
Typically a failed sunroof control module or water intrusion from clogged drain tubes. The module is often located near the sunroof and vulnerable to moisture.
Is U0169 expensive to fix?
Expect $150 to $600. Cleaning clogged drains is inexpensive while module replacement is on the higher end. Always clear drains to prevent recurrence.