What is Cylinder Deactivation (ACT / COD / MDS) Off?
Cylinder Deactivation (ACT / COD / MDS) Off is a core drivetrain concept in modern engine management: Keeping all 4/6/8 cylinders firing continuously to eliminate 2-cylinder vibration and uneven exhaust acoustics. Within Softechpro Solutions v2.0.6 (native Windows 10/11, macOS & B2B REST API), supported drivetrain structures are identified automatically across 4,973+ 12V Car/Van ECUs and 446+ 24V Heavy-Duty Truck & Tractor controllers with integrated block checksum calculation.
By Softechpro Calibration Engineering Team · Suite v2.0.6 · Last verified
Technical Specifications & Workshop Reference
| Engineering Attribute | Specification in Softechpro Solutions v2.0.6 |
|---|---|
| Subsystem Category | Drivetrain |
| Diagnostic / Protocol Refs | COD / ACT State Map |
| Representative Controllers | MG1CS011, MED17-5-25 |
| Required Input File | 100% Virgin Original Stock Readout (.bin / .ori full backup) |
| Supported Platforms | Windows 10/11, macOS (1 PC / HWID) & B2B HTTPS REST API |
Related ECU Engineering Terms
← Auto Start-Stop Default Off / Memory
Inverting minimum battery/temperature thresholds so automatic engine stop-start stays disabled on ignition key-on.
VAG 3.0 V6 TDI Low-Idle Oil Pressure Upgrade →
Raising two-stage oil pump solenoid switchover demand at idle and low load on EA897 3.0 TDI V6 engines (EDC17CP44 / MD1CP004) to protect main bearings.
Driver Wish (Pedal-to-Torque) Calibration
3D lookup matrix translating accelerator pedal percentage and RPM into requested crankshaft/indicated engine torque (Nm).
Engineering & Licensing Questions
What is Cylinder Deactivation (ACT / COD / MDS) Off in ECU remapping and diagnostics?
Cylinder Deactivation (ACT / COD / MDS) Off refers to keeping all 4/6/8 cylinders firing continuously to eliminate 2-cylinder vibration and uneven exhaust acoustics. Softechpro Solutions v2.0.6 automates binary detection and checksum verification on 100% virgin original stock files.
Which fault codes or identifiers relate to Cylinder Deactivation (ACT / COD / MDS) Off?
Common diagnostic references associated with Cylinder Deactivation (ACT / COD / MDS) Off include COD / ACT State Map. Upload your virgin ECU readout free at https://www.softechpro-solutions.com/ to verify exact software coverage.