Circuit/System Verification

WARNING: This page is about a different car, the 2018 Chevrolet Trax and 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify no DTCs are set.
- If any DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If no DTCs are set
Ignition ON.
Test for greater than 12 V between the battery positive terminal and negative terminal.
- If 12 V or less
  Refer to Battery Inspection/Test .
- Go to next step: If greater than 12 V
Verify the scan tool parameter:
- Battery Sensor Module Battery State Information parameter reads Available.
- Battery Sensor Module Reset Occurred - Using Estimated State of Charge reads No.
- If not the specified value
1. Disconnect and reconnect the C1 Battery Negative cable.
  NOTE:
  Allowing the vehicle to sit undisturbed for 3 h will automatically perform a Battery Sensor Learn upon the next engine cranking event. This will allow the battery state of charge to be relearned.
2. Wait a minimum of 3 hours.
3. Start the engine.
4. Test drive the vehicle.
  Verify the Stop/Start System is functioning correctly.
  - if a condition exists
    Refer to Stop/Start Disable, Inhibit, and Restart Reasons
  - Go to next step: If No Conditions exists
5. All OK.
- Go to next step: If the Specified Value
Test drive the vehicle.
Verify the Stop/Start System is functioning correctly.
- if a condition exists
  Refer to Stop/Start Disable, Inhibit, and Restart Reasons
- Go to next step: If No Conditions exists
Verify the infotainment system remains active during a start/stop event.
- If the infotainment system turns off or restarts during a start/stop event.
  Refer to Circuit/System Testing - Power Supply Transformer Circuit Malfunction
- Go to next step: If the infotainment system remains active during a start/stop event
All OK.