Switch B2 - RoofHatchSwitch open load or SC to UBAT
â–¶ How to fix
Check component, harness and wiring.
What you'll see
No driver-visible symptom recorded.
System reaction
Sensor not used. If armed when fault occurs the alarm will sound.
Diagnostic depth
Detection
System detects open load or short circuit
Possible cause
Broken cable, open load or short circuit to UBAT