FixVault

Circuit/System Verification

CAUTION: To help avoid personal injury, additional precautions must be taken prior to working on the generator control module or the generator starter. After removing the 36V battery cables from the generator battery, remove both engine wiring harness connectors from the generator control module. Wait at least 5 minutes and then remove the generator control module cover. Verify voltage levels at all 36V, 12V, and 3-phase connections, are less than 3 volts using a DMM before proceeding.
  1. If DTC is history, refer to Testing for Intermittent Conditions and Poor Connections .
  2. With ignition ON, observe the scan tool SGCM temperature sensor parameters.
    • If only the SGCM board temperature sensor reads high, replace the SGCM.