Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read Adaptive Cruise Control (ACC) DTCs and record on the repair order.
2. With the scan tool, erase ACC DTCs.
3. Turn the ignition off.
4. Turn the ignition on.
5. With the scan tool, read ACC Module DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK FOR ACTIVE DTCS IN THE FORWARD FACING CAMERA
1. With the scan tool, read FFC DTCs
  Are there any active DTCs in the FFC?
  
  Yes
  - Repair the FFC DTCs and retest.
  No
  - Go To 3
CHECK FOR RELATED SOFTWARE UPDATES
1. Check for related software updates in accordance with the latest Service Information.
  Are there any updates available?
  
  Yes
  - Perform the software update in accordance with the Service Information and retest.
  No
  - Go To 4
CHECK RELATED HARNESS CONNECTIONS
1. Turn the ignition off.
2. Disconnect all ACC harness connectors.
3. Disconnect all related in-line harness connections (if equipped).
4. Disconnect the related component harness connectors.
5. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent terminals.
  - Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Perform a terminal drag test on each connector terminal to verify proper terminal tension.
  Repair any conditions that are found.
6. Reconnect all ACC harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
7. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
9. With the scan tool, erase DTCs.
10. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
11. With the scan tool, read ACC DTCs.
  Did the DTC return?
  
  Yes
  - Go To 5
  No
  - Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to ADAPTIVE CRUISE CONTROL (ACC) VERIFICATION TEST .
  - Test complete.
CHECK FOR ACTIVE DTCS AFTER REPLACING THE FORWARD FACING CAMERA
1. Replace and program/align the Forward Facing Camera in accordance with the Service Information. Refer to MODULE, FORWARD FACING CAMERA (FFCM), REMOVAL AND INSTALLATION .
2. Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to ADAPTIVE CRUISE CONTROL (ACC) VERIFICATION TEST .
3. Turn the ignition off for 10 seconds.
4. Turn the ignition on.
  Does this DTC return after replacing the Forward Facing Camera?
  
  Yes
  - Replace and program the Adaptive Cruise Control (ACC) Module in accordance with the Service Information. Refer to MODULE, ADAPTIVE CRUISE CONTROL (ACC), REMOVAL AND INSTALLATION .
  - Perform the ADAPTIVE CRUISE CONTROL VERIFICATION TEST. Refer to ADAPTIVE CRUISE CONTROL (ACC) VERIFICATION TEST .
  No
  - Test complete.