Cummins ISB CM2150 Wiring Diagram (Bulletin 4021572)

Cummins Bulletin 4021572 is the wiring diagram for the ISB with the CM2150 control module, the 6.7 litre generation fitted with a diesel particulate filter.

It covers the ECM pinout, injector wiring, aftertreatment (DPF) wiring, the variable geometry turbocharger and the J1939 communication network. A lot of fault codes on these engines come from the aftertreatment sensors or the VGT actuator, and both circuits are shown.

What the diagrams show

• ECM pinout
• Injector wiring
• Aftertreatment (DPF) system wiring
• Variable geometry turbocharger (VGT) wiring
• J1939 communication network

Compatibility

• Models: ISB with CM2150
• Control module: CM2150
• Publication: Bulletin 4021572 (revisions -01 to -03)
• Document type: Wiring diagram

Before you buy

Use it to diagnose and repair the factory engine wiring. Check that your ECM is a CM2150 before ordering.

Your engine's dataplate shows the engine model, the engine serial number (ESN) and the CPL number. Compare those with the models above. If you're not sure, email us the dataplate details and we'll check for you.

File format

PDF download. Nothing is shipped. Opens on a computer, tablet or phone.

We're an independent seller and are not affiliated with or endorsed by Cummins. Brand and model names are used only to identify the engines this manual covers.