Operation CHARM: Car repair manuals for everyone.

NBS Output 1 Open

Tests 1 - 2:




Tests 3 - 4:




SYMPTOM
NBS OUTPUT 1 OPEN

WHEN MONITORED
Continuously.

SET CONDITION
If the FCM detects no voltage present on the NBS relay control circuit.

POSSIBLE CAUSES
- Check DTCS
- Fused B+ circuit open
- NBS relay open
- NBS relay control circuit open
- Front control module