Scania AMS DTC 4384 Midbed NOx sensor (pre-ASC2) supply, short circuit to ground

AMS AMS control unit · Scania

Code 4384 (decimal). Some diagnostic tools show it in hexadecimal as 001120.

In short

The EEC control unit (E67) is indicating a short circuit to ground fault on the pins connected to the midbed NOx sensor (pre-ASC2) supply.

Applies to: AMS2

What does Scania AMS fault code 4384 mean?

The EEC control unit (E67) is indicating a short circuit to ground fault on the pins connected to the midbed NOx sensor (pre-ASC2) supply.

What causes Scania DTC 4384?

1: T294 (NOx sensor upstream of ASC2) - Supply short circuit to ground

How to fix Scania AMS fault code 4384?

  1. Check for short circuit to ground faults on the pins on the EEC control unit (E67) that are connected to the midbed NOx sensor (pre-ASC2) supply.
  2. For a detailed harness and pin description see the electrical component, under the check tab, in the diagnostic tool.
  3. For a general description about different methods for electrical failure checks see the work shop manual subgroup 16-70.
  4. In order to inactivate the electrical fault code it is necessary to restart the EEC 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 4384 in other Scania systems

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