Powertrain
generic / SAE
P25BA
Regeneration Control Switch Circuit/Open
The DPF/SCR forced-regeneration request switch — used on commercial vehicles to let the operator force a parked regeneration when the automatic regen has been postponed too often — is open. The ECM cannot honour an operator request for forced regen.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / BA
Possible causes
- Open switch wire 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: 60–350 €
- Estimated time: 0.3–1.5 h
- Component: regen request switch
- Component: wiring harness
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012