TQ error 04A0: ERR 04A0 DRV COMM – CAN-bus communication error

What it means

Components are not talking to each other correctly. TQ says dirt in the charging port can cause this.

Likely causes

• Dirt or moisture in the charging port
• Communication fault

Symptoms

• ERR 04A0 DRV COMM on the display

How to fix it

1. Check the charging port for dirt and clean it gently with a dry cloth.
2. Switch the system off and on again.
3. If the error comes back, contact your TQ dealer.

How urgent is it?

Clean the port; dealer if it repeats.

Applies to

• TQ HPR50 with TQ display / remote

More TQ codes

• 0496 ERR 0496 DRV HW – Drive unit phase breakage
• 0497 ERR 0497 DRV HW – Drive unit calibration error
• 049B ERR 049B DRV SENS – Cadence sensor error
• 04A1 ERR 04A1 DRV COMM – CAN-bus communication error
• 04A8 ERR 04A8 SPD SENS – Speed sensor error
• 04B0 ERR 04B0 DRV HW – Drive unit mechanical error

All 37 TQ codes →