The B1450 code on your 2022 Cadillac CT5 indicates a malfunction in the sunroof motor circuit. This code affects your CT5's power sunroof/moonroof system, signaling the body control module has detected an electrical issue preventing normal sunroof operation.
Understanding B1450 on Cadillac CT5
The sunroof motor is controlled by the body control module and responds to switch inputs to open, close, tilt, and vent the sunroof panel. Code B1450 indicates a circuit fault - the motor isn't receiving proper signals, isn't responding, or is drawing abnormal current.
Common Symptoms
- Sunroof won't open or close
- Sunroof moves slowly or erratically
- Sunroof stops mid-travel
- Sunroof switch has no response
- Auto-close feature not working
- Sunroof opens but won't close (or vice versa)
Primary Causes
- Sunroof motor failure
- Sunroof switch fault
- Wiring damage in headliner
- Sunroof track obstruction
- Body control module issue
- Drainage tubes clogged causing water damage
- Sunroof cable or gear failure
Diagnostic Procedure for 2022 CT5
Using GM scan tool, access sunroof module data. Command sunroof operation and observe response. Listen for motor attempting to operate. Check for obstructions in sunroof track. Verify sunroof switch is sending commands. Check wiring from BCM to sunroof motor. Inspect for water damage from clogged drains.
Repair Solutions
Replace failed sunroof motor. Clear track obstructions and lubricate guides. Repair water-damaged wiring or connectors. Replace faulty sunroof switch. Clean clogged sunroof drains to prevent future water damage. After motor replacement, perform sunroof initialization procedure. Clear codes and test all sunroof functions.