Audi
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    CAN data bus, SRS - no signal
Cause:
    SRS control module trouble code(s) stored, wiring, matching resistor in ECM

Isuzu
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control module (ECM) - RAM stack
Cause:
    Interference from non standard electronics, erase trouble code and re-test

Volkswagen
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    CAN data bus, SRS - no signal
Cause:
    SRS control module trouble code(s) stored, wiring, matching resistor in ECM