U0160low severityNetwork
Lost Communication with Sunroof Control Module
on 2003 Mazda B2300 2.3L I4 · FWD
What this code means
Cannot communicate with the power sunroof or panoramic roof control module.
Symptoms
- Sunroof not opening/closing
- Sunroof switch not responding
- Sunroof position unknown
- Auto-close not working
Common causes
- Sunroof module failure
- Wiring issue
- Module power loss
- Fuse blown
- Sunroof motor failure
Diagnostic steps
- Check sunroof module fuse
- Test power and ground
- Check wiring in headliner
- Test sunroof motor directly
- Check sunroof limit switches
Repair notes
Check fuses. Sunroof module may need initialization after battery disconnect.
Other Network codes on this vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High
U0009
High Speed CAN Communication Bus Shorted Together
U0010
Medium Speed CAN Communication Bus