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Diagnostic Test

  1. READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN 
    NOTE:

    Verify that the Central Vision Processing Module (CVPM) has the latest software installed. If necessary, update the software and retest. 

    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 10.0 seconds.
    5. Turn the ignition on.
    6. Using the recorded Environmental Data and the When Monitored Conditions above, 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 

  2. CHECK FOR BATTERY OR SYSTEM VOLTAGE DTCS IN THE CVPM 
    1. Refer to the saved DTC information recorded on the repair order.

      Were any battery or system voltage DTCs set in the CVPM?

      Yes 

      No 

      • Go To  3
  3. CHECK THE OPERATION OF ALL CAMERAS CONNECTED TO THE CVPM 
    NOTE:

    The Surround View Camera System may use two or more connected cameras through LVDS (Low Voltage Differential Signal) Coaxial Cable. 

    1. Activate the Surround View Camera System by pressing the Surround View Camera soft key located in the "Controls" screen within the Uconnect system.
    2. Compare the operation of all the connected cameras to the CVPM, and confirm at least one camera is operating and functioning normally.

      Is one camera operating and functioning normally?

      Yes 

      • Go To  5

      No 

      • Go To  4
  4. CHECK THE RELATED COAX CABLE CONNECTIONS 
    Central Vision Processing Module (CVPM) Connector Color Coding
    Front Camera Green
    Left Camera Beige
    Right Camera Brown
    Rear Camera Orange
    Video Output to Radio / Display Violet
    1. Turn the ignition off.
    2. Inspect the CVPM harness connector for a secure and undamaged connection.
    3. Inspect the Coax Cable in-line harness connectors for a secure and undamaged connection.
    4. Inspect the related Camera harness connector for a secure and undamaged connection.

      Are the connections secure and undamaged?

      Yes 

      • Go To  5

      No 

      • Repair the cable connection as needed and check video operation.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  5. CHECK THE CVPM 
    Central Vision Processing Module (CVPM) Connector Color Coding
    Front Camera Green
    Left Camera Beige
    Right Camera Brown
    Rear Camera Orange
    Video Output to Radio / Display Violet
    1. On the vehicle, identify and locate the faulted circuit connector for testing at the CVPM.
      NOTE:

      For example, a fault setting for the Front Camera would indicate the GREEN connector at the CVPM. 

    2. Disconnect the connector at the CVPM for the faulted circuit being set against.
    3. On the vehicle, identify and locate a known good operating and functioning camera, circuit and related connector at the CVPM.
    4. Disconnect the connector at the CVPM for a known good operating and functioning camera.
      NOTE:

      Continuing with the example, if a fault was setting against the Front Camera; and the Rear Camera is operating and functioning normally on the vehicle - disconnect the Rear Camera connector (ORANGE connector) at the CVPM to further test with. 

    5. From the Adapter, RG-174 Coax Cable 9977-6-8 kit, connect the 9977-6-8-2 test lead to the 9977-6-8-3 test lead.

      (special tool #9977-6-8, Adapter, RG-174 Coax Cable)

    6. Connect the other end of the 9977-6-8-2 test lead to the CVPM connection for the fault related camera circuit.
      NOTE:

      In the example, the BLUE connector from the 9977-6-8-2 test lead would connect to the GREEN connector on the CVPM. We are using a known good camera, cable, and connection from the Rear Camera as a substitute for the questionable camera, cable, and connection on the Front Camera. 

    7. Connect the other end of the 9977-6-8-3 test lead to the coaxial cable going to the known good operating and functioning camera.
      NOTE:

      In the example, the BLUE connector from the 9977-6-8-3 test lead would connect to the ORANGE connector going to the Rear Camera. We are using a known good camera, cable, and connection from the Rear Camera as a substitute for the questionable camera, cable, and connection on the Front Camera. 

    8. Check the activity status of the camera and fault status.
      NOTE:

      In the example, the status of the Front Camera should show an active image (possibly inverted - due to orientation) of the known good camera circuit being used. The related DTCs for the Front Camera should change to STORED. In this example the CVPM would then show no active image and would show ACTIVE DTCs set against the Rear Camera with no connection being present. 

      Did camera activity return and the status of the original setting DTC(s) change to Stored?

      Yes 

      • A known good camera, cable, and connection was used for testing and the CVPM is no longer a possible cause. The camera and cable are the remaining possible causes.
      • Go To  6

      No 

      • A known good camera, cable, and connection was used for testing and the CVPM is the only remaining cause.
      • Go To  7
  6. TEST THE COAX CABLE BETWEEN THE CVPM AND RELATED CAMERA 
    1. Turn the ignition off.
    2. Disconnect the 9977-6-8-2 and the 9977-6-8-3 test leads from the vehicle.
    3. Reconnect the known connector for the known good operating and functioning camera circuit used for testing previously.
      NOTE:

      In the example, the Rear Camera connector (ORANGE connector) was disconnected at the CVPM for testing purposes. 

    4. From the Adapter, RG-174 Coax Cable 9977-6-8 kit, connect the long cable (9977-6-8-1) between the related Camera and the CVPM connector.

      (special tool #9977-6-8, Adapter, RG-174 Coax Cable)

    5. Turn the ignition on.
    6. With the scan tool, erase DTCs.
    7. Turn the Radio on and wait 25 seconds.
    8. With the scan tool, read DTCs.

      Is the DTC active?

      Yes 

      No 

      • Replace the Coax Cable in accordance with the service information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  7. CHECK RELATED HARNESS CONNECTIONS 
    1. Disconnect all CVPM harness connectors.
    2. Disconnect all related in-line harness connections (if equipped).
    3. Disconnect the related component harness connectors.
    4. 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.

    5. Reconnect all CVPM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
    6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
    7. Reconnect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
    8. With the scan tool, erase DTCs.
    9. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
    10. With the scan tool, read CVPM DTCs.

      Did the DTC return?

      Yes 

      No 

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