Briggs & Stratton VANGUARD M490000 Repair Manual page 20

Step
4 1. Remove probe from terminal J2-02, and back probe terminal
J1-09 (Black wire) of ECM J1 (Grey) connector.
2. Connect terminal J1-09 back probe to red meter test lead on
DVOM.
3. Connect black meter test lead on DVOM to a known good
ground.
2
4. Observe reading on DVOM.
5. Is resistance 1.0 ohm or less?
Fuse/Relay Block
ECM J2 (Black) Connector
16
Action Yes
System OK.
ECM J1 (Grey) Connector
No
Look for open or short
in ECM ground circuit.