Laminated fold-out factory wire diagram for the Cummins QSB3.9-30/QSB4.5-30/QSB5.9-30 engine control system. Includes specifications, & fault code info.
For ECM 3990517
Includes:
- ECM pin locations
- Wire diagram (color-coded)
- Connectors
- Each controlled or controlling sensor, etc
- Cummins responsibility & truck manufacturer responsibility connections
- Electrical specifications & reading parameters (volts-amps-ohm readings)
- Fault codes, fault reasons, fault effects
Laminated surface allows for the use of erasable marker to make notes while performing diagnostics which can be erased when finished.
View more Cummins Wire Diagrams
Reviews
There are no reviews yet.