Scania WTA DTC 220 Glow plug

WTA WTA control unit · Scania

Code 220 (decimal). Some diagnostic tools show it in hexadecimal as 00DC.

In short

The glow plug is deactivated.

Applies to: WTA1

What does Scania WTA fault code 220 mean?

The glow plug is deactivated.

What causes Scania DTC 220?

Open circuit in the glow plug circuit.

How to fix Scania WTA fault code 220?

  1. Check the glow plug.
  2. Measuring points 2 and 7 in the harness-to-harness connector for the auxiliary heater control unit.
  3. Resistance value: - 2 ohms.
  4. Check internal harness-to-harness connectors in the auxiliary heater.

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.