Jaguar General Start-Up Failure Without Code

Charger powers on but will not start charging; vehicle shows ‘Charging not possible’ with no error code on charger.

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Incorrect installation configuration (phase, current limit), Weak pilot signal amplitude, Vehicle not recognizing EVSE due to software mismatch, Loose low-voltage control wiring inside Jaguar wallbox

How to Fix / Troubleshooting

Safety first: Treat the charger as live whenever the breaker is on. Isolate before opening.

  • Step 1 – Try another EV and cable: Determine whether the issue is specific to one vehicle or cable.
  • Step 2 – Check app status: Open the Jaguar wallbox app and look for any status messages (e.g., ‘Standby’, ‘Waiting for vehicle’). Ensure the charger is not in a scheduled or locked mode.
  • Step 3 – Verify configuration: In installer settings, confirm that supply type, max current, and load management options are correctly set.
  • Step 4 – Inspect control wiring: With power OFF, check all low-voltage connectors between the main PCB, pilot circuit, RFID, and communication modules. Reseat any loose plugs.
  • Step 5 – Firmware update: Update the charger firmware to the latest Jaguar release to resolve potential compatibility issues.
Advertisements

Repair Difficulty

Medium 3/5

Required Part

Jaguar Wallbox Control PCB / Configuration
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements