Circuit/System Testing
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
To help avoid personal injury, be careful when working in the vicinity of the generator battery disconnect control module. Internal components will still be live, 36V potential, even when the cover has been opened or removed.
WARNING:
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.
NOTE:
Use the following list to identify the appropriate terminals to test:
- J-35616-65B for female terminals
- J-35616-64B for male terminals
- Disconnect harness connector X1 for the BECM. Refer to Hybrid Battery Service Disconnect/Connect .
- Disconnect current sensor harness.
- Test for less than 1 ohm between the following circuits.
- X1 terminal 20 to current sensor connector terminal A
- X1 terminal 9 to current sensor connector terminal B
- X1 terminal 19 to current sensor connector terminal C
- X1 terminal 10 to current sensor connector terminal D
- If greater than specified value, replace the current sensor harness assembly.
- If all circuits test normal, replace the current sensor/BECM.