With Manufacturer's Scan Tool

Crash Signal, Checking

Special tools and equipment







- VAG1526A
- VAG1527B
- VAG1594A
- VAG1598/31
- VAS5051 with VAG5051/1

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

The airbag control module sends crash signal to Engine Control Module (ECM) (during an accident or if a Output Diagnostic Test Mode (DTM) is carried out relating to airbag system), the ECM switches off fuel pump. This means 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). Electrical Testing Using VAG1598/31 Test Box
- Check for open circuit and short to positive (B+) or ground (GND) in following wiring connections:

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

- Repair any open/short circuit as necessary.

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