Blink EV charger displays E12 and may indicate a communication error with the vehicle.

Safety first: Turn off power before handling internal wiring. Do not insert tools into the vehicle inlet.

Steps to troubleshoot:

• Clean connector: Inspect the J1772 pins for dirt or oxidation. Clean gently with electrical contact cleaner and a non-metallic brush.
• Test with another EV: If E12 only occurs with one vehicle, the issue may be with that vehicle’s inlet or onboard charger.
• Cable inspection: Look for kinks or sharp bends in the cable that could have damaged the pilot conductor.
• Continuity test (advanced): With power OFF and cable disconnected internally, test continuity of the pilot conductor from the handle to the control board terminal.
• Board diagnosis: If the cable and vehicle are good, the pilot sensing circuit on the main control board may be defective and require replacement.

Do not attempt to modify vehicle-side wiring. If multiple vehicles show E12, focus on the Blink charger components.