Pinpoint Test AF: The Hill Start Assist Display Is Never On

AF1 CHECK THE MESSAGE CENTER OPERATION
NOTE: If multiple warnings are present, the message center cycles through each of the warning indicators. Allow the message center to cycle through each display while determining whether the door ajar message center warning is active.
- Close all doors and the liftgate.
- Clear all message center warnings by pressing the OK button for each warning present.
- Monitor the door ajar message center warning.
- Open the driver door.
- Clear the message center popup warning.
- Monitor the door ajar message center warning.
- Does the message center display the door ajar message center warning?
- Yes : GO to AF2.
- No : INSTALL a new IPC. REFER to INSTRUMENT PANEL CLUSTER (IPC) .
AF2 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST
- Using a scan tool, perform the IPC self-test.
- Are any DTCs recorded?
- Yes : For DTC U0121:00, GO to PINPOINT TEST AV .
  For DTC U0140:00, GO to PINPOINT TEST AX .
  
  For all other DTCs, REFER to DTC Chart - IPC .
- No : GO to AF3.
AF3 RETRIEVE THE RECORDED DTCs FROM THE BCM SELF-TEST
- Check for recorded BCM DTCs from the self-test.
- Are any DTCs recorded?
- Yes : REFER to MULTIFUNCTION ELECTRONIC MODULES .
- No : REFER to ANTI-LOCK BRAKE SYSTEM (ABS) AND STABILITY CONTROL to diagnose the hill start assist system.