With Manufacturer's Scan Tool

Crash Signal, Checking

The Engine Control Module (ECM) receives the crash signal ("Crash cut-off was triggered") from the airbag control module.

The airbag control module sends the crash signal to the Engine Control Module (ECM) (during an accident or if a Output Diagnostic Test Mode (DTM) is carried out relating to the airbag system), the ECM switches off the fuel pump. This means that the engine will stop running but can be started again afterward (e.g. to remove vehicle from danger).

- Connect test box V.A.G 1598/31 to wiring harness for Engine Control Module (ECM); do not connect test box directly to Engine Control Module (ECM). Test Box, Connecting For Wiring and Component Test
- Check for open circuit and short to positive (B+) or ground (GND) in following wiring connections:

Test box Airbag Control Module -J234-
V.A.G 1598/31 terminal
Socket
67

- Repair any open/short circuit as necessary.

If no problems with wires are found:
- Check DTC memory of Airbag Control Module -J234-.