U0073 High Network

Control Module Communication Bus Off

Common Causes

CAN bus shorted or open
Failed module holding bus in error state
Damaged CAN bus wiring

Common Symptoms

Multiple Warning Lights On Communication / Network Fault

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Quick Info

Code U0073
System Network
Severity High

Disclaimer

This information is for diagnostic guidance only. Always verify repairs with a qualified technician before performing safety-critical work.

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