Fault Code 1590

Fault code 1590

Cut-out relay

Diagnostic conditions
- Ignition on
- Internal function test on airbag triggering unit

Possible cause of fault
- Short circuit to B+/ground/between wires or open circuit in wiring to cut-out relay
- Cut-out relay for disconnecting battery faulty
- Airbag triggering unit faulty

Affected pins
- Airbag triggering unit: Pin 4
- Airbag triggering unit: Pin 76

Diagnosis/troubleshooting