U0210low severityNetwork
Lost Communication With Door Switch A
on 2009 Chevrolet Tahoe 5.3L V8 Vortec · RWD
What this code means
The module network can no longer talk to door switch A. Door status and related functions may not update correctly.
Symptoms
- Door ajar warning wrong
- Interior lights misbehave
- Lock functions inconsistent
Common causes
- Faulty door switch A
- Damaged wiring in door jamb
- Loose or corroded connector
- Blown fuse
Diagnostic steps
- Scan for related U-codes
- Inspect door jamb harness
- Check switch connector for corrosion
- Test switch continuity and signal
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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