Powertrain
generic / SAE
P04D4
Exhaust Brake Input Circuit Range or Performance
Same as P04D3 with the signal in plausible range yet not matching expected behaviour - e.g. activation request without driver input or no response after a request.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number4 / D4
Possible causes
- Signal implausible against driver action or bus high
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–450 €
- Estimated time: 0.6–1.8 h
- Component: exhaust brake request switch
- MIL / check engine light
Sources
References
sae:J2012