U0036high severityNetwork
Control Module Communication Bus C Shorted To Bus C High
on 2022 Chevrolet TrailBlazer 1.3L I3 Turbo · AWD
What this code means
The low side of bus C is shorted to the high side, corrupting the signal. This prevents reliable module communication.
Symptoms
- Multiple warning lights
- Systems malfunctioning
- Modules unresponsive
Common causes
- Bus C wires shorted together
- Pinched or chafed harness
- Water in connector
- Faulty module shorting bus
Diagnostic steps
- Scan network for faults
- Inspect bus C wiring for shorts between lines
- Check connectors for moisture
- Disconnect modules to isolate
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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