Powertrain
generic / SAE
P0A12
DC/DC Converter Communication
The hybrid control module loses CAN bus communication with the DC/DC converter for longer than the fault threshold.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberA / 12
Possible causes
- CAN bus fault high
- Converter unpowered or offline medium
- Gateway module routing CAN messages incorrectly low
Inspection / repair
- Difficulty: shop only
- DIY: shop recommended
- Estimated cost: 400–3000 €
- Estimated time: 2–8 h
- Component: dc dc converter
- Component: can bus
- Component: hybrid control module
- MIL / check engine light
Sources
References
sae:J2012