OEM factory laminated wire diagram for the Cummins ISBe4 engine with the CM850 ECM.
Printed by Cummins.
Contents of this wire diagram include:
• ECM pin locations
• Wire diagram (color-coded)
• Each controlled or controlling sensor, etc
• Shows 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.