Powertrain
generic / SAE
P06B3
Sensor Power Supply B Circuit Open
Sensor Power Supply B Circuit Open: the circuit is open. Sensors fed from this rail lose their supply and read invalid.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number6 / B3
Possible causes
- Open in supply rail high
- Pin pushed back out of connector body low
- Cracked solder joint inside the module or sensor low
Symptoms
- Check engine light on
- Possible limp mode or no-start
- Multiple follow-up faults across modules
- Reset/relearn may be needed after repair
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.5–2 h
- Component: sensor power supply b
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012