Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

Engine Running with all accessories off, allow the system voltage to stabilize.
Test for 13 V to 15 V at the C1 Battery.
- If not the specified value
  Refer to Charging System Test
- Go to next step: If the specified range
Verify DTC B1AA3 is not set.
- If the DTC is set
  Refer to DTC B1AA3 .
- Go to next step: If the DTC is not set
Verify DTC U300D is not set as current.
- If the DTC is set current
  Refer to Circuit/System Testing.
- Go to next step: If the DTC is not set current
Verify that the DTC does not reset by operating the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions you observe from the Freeze Frame/Failure Records data. If the vehicle passes the Circuit/System Verification procedure, then STOP. Do not perform the Circuit/System Testing or Component Testing as this may result in an unnecessary part replacement. Refer to Testing for Intermittent Conditions and Poor Connections ,