Circuit/System Testing
WARNING: This page is about a different car, the 2015 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
You must perform the Circuit/System Verification before proceeding with Circuit/System Testing.
NOTE:
If a carbon pile tester is available, refer to With Carbon Pile Tester section. Otherwise, refer to Without Carbon Pile Tester section.
With Carbon Pile Tester
- Vehicle OFF.
- Connect a carbon pile tester to the C1 Battery.
- Vehicle ON, turn all accessories off. Observe the voltage reading on the tester and the Hybrid Powertrain Control Module Ignition 1 Signal parameter in the 14V Power Module data list. The voltage should read between 12.6-15.5V.
- Adjust the carbon pile tester so that the Hybrid Powertrain Control Module Low Voltage Circuit Current parameter in the 14V Power Module data list is reading 120 A.
- Verify the voltage reading remains between 12.6-15.5V.
- If not within the specified range
Replace the K59 Starter Generator Control Module.
- If within the specified range
- If not within the specified range
- All OK.
Without Carbon Pile Tester
- Vehicle ON.
- Verify the scan tool Hybrid Powertrain Control Module Ignition 1 Signal parameter continually increases when controlling the Hybrid Powertrain Control Module 14V Power Module Setpoint from 10% to 80% with a scan tool. It may take up to 10 s for the battery voltage to stabilize between each setpoint change.
- If the battery voltage does not continually increase
Replace the K59 Starter Generator Control Module.
- If the battery voltage continually increases
- If the battery voltage does not continually increase
- All OK.