Powertrain
generic / SAE
P05F3
Exhaust Aftertreatment Power Relay Control Circuit Open
The power relay that supplies the entire exhaust aftertreatment system (DOC, DPF, SCR sensors and heaters) reports an open control circuit. Aftertreatment effectively goes offline.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / F3
Possible causes
- Open in relay control or harness high
- Pin pushed back out of connector body low
- Cracked solder joint inside the module or sensor low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–350 €
- Estimated time: 0.5–1.8 h
- Component: aftertreatment power relay
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012