U0170low severityNetwork
Lost Communication with Blind Spot Detection Module
on 2017 Chevrolet Impala 2.5L I4 Ecotec · AWD
What this code means
Cannot communicate with the blind spot monitoring system module.
Symptoms
- Blind spot indicators not working
- BSM warning light
- Blind spot system disabled message
- Side mirror indicators off
Common causes
- BSM module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- BSM sensor blocked or damaged
Diagnostic steps
- Check BSM module fuse
- Test power and ground
- Check CAN wiring
- Inspect BSM sensors in rear bumper
- Clean sensor area
- Test module with diagnostics
Repair notes
Check fuses. BSM sensors in rear bumper can be damaged or blocked by dirt/ice.
Other Network codes on this vehicle
U0001
High Speed CAN Communication Bus
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0005
High Speed CAN Communication Bus (+) High