Scania ATA DTC 122 Glow plug

ATA ATA control unit · Scania

Code 122 (decimal). Some diagnostic tools show it in hexadecimal as 007A.

In short

Short circuit or overload on the glow plug power supply.

Applies to: ATA1ATA2

What does Scania ATA fault code 122 mean?

Short circuit or overload on the glow plug power supply.

What causes Scania DTC 122?

Overload.

How to fix Scania ATA fault code 122?

  1. Check the power supply to the glow plug, 18 V.
  2. Check the auxiliary heater control unit.

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

Code 122 in other Scania systems