U0007high severityNetwork
High Speed CAN Communication Bus (-) Low
on 2015 Porsche Panamera Turbo S 4.8L Twin Turbo V8 · AWD
What this code means
The CAN Low wire voltage is lower than expected, indicating a short to ground.
Symptoms
- Bus communication degraded
- Multiple DTCs stored
- Intermittent module dropouts
Common causes
- CAN L shorted to ground
- Damaged wiring insulation
- Module fault pulling CAN L low
- Water damage
Diagnostic steps
- Measure CAN L voltage
- Isolate modules to find fault source
- Inspect wiring for ground contact
- Check for water intrusion
Repair notes
Repair the CAN L short to ground. Check for damaged wire insulation near metal brackets.
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U0001
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U0002
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