RideFixer

TQ error code

TQ error 5401: ERR 5401 DRV CONN – Communication error between drive unit and display

Medium severity Service soon

Can I ride home with this error?

Ride with caution. Assist may not work; pedal without it.

What it means

The drive unit and display are not communicating.

Likely causes

  • Loose plug
  • Cable or display fault

Symptoms

  • ERR 5401 DRV CONN on the display

How to fix it

  1. Switch the system off and on again.
  2. If the error comes back, contact your TQ dealer.
Still showing 5401? The RideFixer app finds bike shops near you, so you know where to take it.

How urgent is it?

Dealer if it keeps returning.

Applies to

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