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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Image Display Cameras >> Diagnostic Information and Procedures >> DTC B395A (with UV2, in Video Processing Control Module) >> Circuit/System Testing

Circuit/System Testing

Circuit/System TestingDTC B395A 39, 3C

  1. Ignition - On / Vehicle - In Service Mode
  2. Replace the component:B87 Rearview Camera
  3. Verify DTC B395A is not set.
    • If DTC B395A is not set 

      All OK.

    • Go to next step: If DTC B395A is set 
  4. Replace the component:K157 Video Processing Control Module

Circuit/System TestingDTC B395A 08

  1. Ignition/Vehicle & All vehicle systems - Off
  2. Disconnect the electrical connector:X3@K157 Video Processing Control Module
  3. Wait for greater than 5 s.
  4. Connect appropriate EL-52552pinout tool to K157 Video Processing Control Module
  5. Ignition - On / Vehicle - In Service Mode
  6. Test for 7 to 11 V between the test points:Signal circuit terminal 2-RD@K157 Video Processing Control Module & Ground(component side)
    • If not between 7 and 11 V 

      Replace the component:K157 Video Processing Control Module

    • Go to next step: If between 7 and 11 V 
  7. Ignition/Vehicle & All vehicle systems - Off
  8. Disconnect the electrical connector:B87 Rearview Camera
  9. Connect appropriate EL-52552pinout tool to Coax Cable
    10. NOTE:

    Before testing the coax cable, check the cable's exterior for being pinched, cut, damaged, or having loose connections at the components, all of which can cause reception issues.

  10. Test for less than 5 ohms between the test points:Coax Cable Center & The other end of the circuit
    • If 5 ohms or greater 

      Replace the component:Coax Cable

    • Go to next step: If less than 5 ohms 
  11. Test for less than 5 ohms between the test points:Coax Cable Outer Shield & The other end of the circuit
    • If 5 ohms or greater 

      Replace the component:Coax Cable

    • Go to next step: If less than 5 ohms 
  12. Test for infinite resistance between the test points:Coax Cable Outer Shield & Coax Cable Center
    • If less than infinite resistance 

      Replace the component:Coax Cable

    • Go to next step: If infinite resistance 
    13. NOTE:

    If the condition is intermittent or cannot be duplicated, disconnect the connectors and add dielectric grease or lubricant (Nyogel 760G or equivalent, meeting GM specification 9986087). This procedure will correct the high resistance condition due to terminal fretting corrosion.

  13. Replace the component:B87 Rearview Camera
  14. Apply the parking brake.
  15. Engine RunningTransmission in Reverse
  16. Verify DTC B395A is not set.
    • If the DTC is set 

      Replace the component:K157 Video Processing Control Module

    • Go to next step: If the DTC is not set 
  17. All OK.

Circuit/System TestingDTC B395A 66, 58, 4B

  1. Ignition - On / Vehicle - In Service Mode
  2. Perform the scan tool control function:Reset Camera Alignment Learned Values
  3. Verify DTC B395A is not set.
    • If DTC B395A is not set 

      All OK.

    • Go to next step: If DTC B395A is set 
  4. Operate the vehicle under the following conditions:
    • During the day
    • On a straight road
    • Distance Traveled=Greater than 0.5 km (0.3 mi)
  5. Ignition/Vehicle & All vehicle systems - Off
  6. Wait for greater than 60 s.
  7. Ignition - On / Vehicle - In Service Mode
  8. Verify DTC B395A is not set.
    • If DTC B395A is not set 

      All OK.

    • Go to next step: If DTC B395A is set 
  9. Test or replace the component:B87 Rearview Camera
  10. Verify DTC B395A is not set.
    • If DTC B395A is not set 

      All OK.

    • Go to next step: If DTC B395A is set 
  11. Test or replace the component:K157 Video Processing Control Module

Circuit/System TestingDTC B395A 53, 54

    NOTE:

    DTC B395A 53 and 54 can set due to extreme environment temperature conditions and not necessarily due to a camera system defect.

  1. Ignition - On / Vehicle - In Service Mode
  2. Place vehicle in an area where a ambient temperature is 15 - 25° C (59 - 77° F) with engine OFF.
  3. Wait at least 30 minutes.
  4. Verify DTC B395A is not set.
    • If DTC B395A is not set 

      All OK.

    • Go to next step: If DTC B395A is set 
  5. Replace the component:B87 Rearview Camera
  6. Verify DTC B395A is not set.
    • If DTC B395A is not set 

      All OK.

    • Go to next step: If DTC B395A is set 
  7. Replace the component:K157 Video Processing Control Module
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