U0230 on Audi
Lost Communication With Rear Gate Module
U0230 on Audi vehicles indicates lost communication with rear gate module. Au7o has documented this code across 1 Audi model — most commonly on S7. A controller is no longer receiving the periodic data-bus messages expected from the Rear Gate (liftgate/tailgate) Module. Set after a calibrated timeout, it indicates lost communication with the power liftgate/rear-gate controller. Typical repair costs on Audi range from $150 to $900, depending on the specific model and root cause.
Common Causes of U0230
- •Power/ground loss to the rear gate module
- •Open/shorted bus wiring (commonly in the liftgate hinge harness)
- •Corroded/loose connectors
- •Failed rear gate module
- •Network fault
U0230 on Audi by Model
Audi S7(1 issue)
- Rear-View Camera / MMI Flex Harness Black Screen2013-2018
On the C7 A7/S7, the reversing camera frequently goes to a black screen (or shows an intermittent 'No Signal' banner) when reverse is selected, even though the parking sensors still beep. The usual root cause is broken conductors in the flexible wiring loom that flexes at the tailgate hinge, not the camera itself; less often the camera module or MMI head unit is at fault. Owners also report the retractable/MMI display mechanism and occasional MMI freezes/restarts on this platform.
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View U0230 across all makes →Frequently Asked Questions
What does U0230 mean on Audi?▼
U0230 stands for "Lost Communication With Rear Gate Module." A controller is no longer receiving the periodic data-bus messages expected from the Rear Gate (liftgate/tailgate) Module. Set after a calibrated timeout, it indicates lost communication with the power liftgate/rear-gate controller. On Audi specifically, this code is documented across 1 model.
What causes U0230 on Audi vehicles?▼
Common causes on Audi: Power/ground loss to the rear gate module, Open/shorted bus wiring (commonly in the liftgate hinge harness), Corroded/loose connectors, Failed rear gate module, Network fault. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U0230 on a Audi?▼
Repair costs on Audi range from $150 to $900, depending on the specific model and root cause.
Which Audi models have U0230 documented?▼
Au7o has documented U0230 on 1 Audi model: S7.