Circuit/System Verification

Ignition - On / Vehicle - In Service Mode
Verify there are no DTCs set related to the following component/system: Stop/Start System
- If a related DTC is set
  Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If a related DTC is not set
Ignition/Vehicle & All vehicle systems - Off

NOTE:

The battery voltage should stabilize after a few minutes of turning the ignition/vehicle Off.

Test for 12.4 to 12.8 V between the test points: Battery Positive Post & Battery Negative Post
- If not between 12.4 and 12.8 V
  Refer to: Battery Inspection/Test
- Go to next step: If between 12.4 and 12.8 V
Verify the scan tool parameter: Stop/Start Select Switch = Inactive
- If not the specified state
  Refer to: Circuit/System Testing - Test 1
- Go to next step: If the specified state
Press and hold the switch: Stop/Start Select Switch
Verify the scan tool parameter: Stop/Start Select Switch = Active
- If not the specified state
  Refer to: Circuit/System Testing - Test 1
- Go to next step: If the specified state
Press and release the switch: Stop/Start Select Switch
Verify the component activates: Stop/Start Select Switch Indicator
- If the component does not activate
  Refer to: Circuit/System Testing - Test 2
- Go to next step: If the component activates
Verify the scan tool parameter:
- Battery Sensor Module Battery State Information = Available
- Battery Sensor Module Reset Occurred - Using Estimated State of Charge = No
- If not the specified state
1. Refer to: Battery Sensor Module Learn
2. Road Test - Vehicle
  Verify the correct operation: Stop/Start System
  - If a condition exists
    Refer to: Stop/Start Disable, Inhibit, and Restart Reasons
  - Go to next step: If no condition exists
3. All OK.
- Go to next step: If the specified state
Road Test - Vehicle
Verify the correct operation: Stop/Start System
- If a condition exists
  Refer to: Stop/Start Disable, Inhibit, and Restart Reasons
- Go to next step: If no condition exists
Verify the correct operation: Infotainment System State = Always On - During an autostart or autostop event
- If a condition exists
  Refer to: Circuit/System Testing - Test 3
- Go to next step: If no condition exists
All OK.