Wire For Crash Signal, Checking

Wire For Crash Signal, Checking

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

When the airbag control module sends the crash signal to the ECM (during an accident or when output DTM is being performed for the airbag system), the ECM switches the Fuel Pump (FP) off. This means that the engine will stop running but can be started again afterward (e.g. to remove vehicle from danger).

- Connect VAG1598/31 test box at wiring harness to Engine Control Module (ECM), do not connect ECM [1][2]Scan Tool Connecting and Initial Checks
- Check following wire connection for open circuit and short circuit to Ground (GND) and B+:

Test box VAG1598/31 Control module for Airbag -J234-
Socket Terminal
67

- Repair open circuit or short circuit if necessary.

If no malfunctions are found in wire:
- Check DTC memory of control module for airbag: