E11
Chevrolet Communication Module Fault (Wi‑Fi/Bluetooth)

Charger displays E11 and Wi‑Fi/app control is unavailable, but basic charging may still work.

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Possible Causes

Failed Wi‑Fi/BLE module, Loose communication ribbon cable, Firmware corruption in connectivity module, Excessive RF interference at installation site

How to Fix / Troubleshooting

Safety first: Network issues are low-voltage, but still turn OFF power before unplugging internal modules.

  • Step 1 – Reboot the charger: Turn OFF the breaker for 2 minutes, then turn it back ON. Wait for the charger to fully boot and check if E11 clears.
  • Step 2 – Check router distance: Ensure the home Wi‑Fi router is within reasonable range of the Chevrolet charger and not blocked by thick walls or metal objects.
  • Step 3 – Re-pair in app: Use the Chevrolet EV or associated charger app to remove and re-add the charger, following the pairing instructions.
  • Step 4 – Internal cable check: With power OFF, remove the cover and verify that the small ribbon or plug-in cable between the main PCB and the Wi‑Fi/BLE module is fully seated.
  • Step 5 – Module replacement: If E11 persists and connectivity is required, the communication module may need replacement. Basic charging may still function without it.
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Repair Difficulty

Easy 2/5

Required Part

Wi‑Fi/Bluetooth Communication Module
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