Diagnostic Test

READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
3. With the scan tool, erase all DTCs.
4. Turn the ignition off for a minimum of 10 seconds.
5. Turn the ignition on.
6. Using the recorded Environmental Data and the When Monitored Conditions, operate the vehicle in the conditions that set the DTC.
7. With the scan tool, read 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 THE LOW VOLTAGE DIFFERENTIAL SIGNALING (LVDS) CONNECTIONS BETWEEN THE NIGHT VISION PROCESSING MODULE (NVPM) AND INSTRUMENT PANEL CLUSTER (IPC)
1. Turn the ignition off.
2. Disconnect the LVDS harness connectors at the IPC.
3. Disconnect the LVDS harness connectors at the NVPM.
4. Inspect the harness 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.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (J244) LVDS CABLE FOR CONTINUITY BETWEEN THE NVPM AND THE IPC
1. Check the (J244) LVDS Cable for continuity between the NVPM harness connector and the IPC harness connector.
  Is there continuity on the (J244) LVDS Cable between the NVPM harness connector and the IPC harness connector?
  
  Yes
  - Go To 4
  No
  - Repair or Replace the (J244) LVDS Cable, as needed.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
REPLACE THE NVPM - ERASE DTCS AND CHECK FOR DTC TO RETURN
1. Replace the Night Vision Processing Module (NVPM) in accordance with the Service Information. Refer to MODULES, REMOVAL AND INSTALLATION .
2. Connect the component and Electronic Control Unit (ECU) harness connectors.
3. Turn the ignition on.
4. With the scan tool, erase DTCs.
5. Using the Environmental Data or When Monitored Conditions, operate the vehicle within the conditions that set the DTC.
6. With the scan tool, read DTCs.
Did the DTC return?

Yes
- Replace the Instrument Panel Cluster (IPC) in accordance with the Service Information. Refer to MODULE, INSTRUMENT PANEL CLUSTER (IPC), REMOVAL AND INSTALLATION .
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Replacing the Night Vision Processing Module (NVPM) corrected the condition.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .