Cummins ISX11.9 CM2250 – Service Manual 019-008 Battery Ground Circuit

Check the power harness ground connection for loose, corroded, or broken connections.		SMALL \| MEDIUM \| LARGE

CAUTION

The leads must fit tightly in the connector without expanding the pins in the connector otherwise the connector will be damaged.

Insert the lead into the electronic control module (ECM) battery supply negative (-) of the ECM power harness connector. Connect the alligator clip to the multimeter probe. Touch the other multimeter probe to the engine block ground and measure the resistance. The resistance
must be 10 ohms or less.