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Circuit/System Verification

  1. Ignition ON/Vehicle In Service Mode.
  2. Verify that DTC U1980 is not set.
    • If DTC U1980 is set 
    1. Program the K56 Serial Data Gateway Module.
    2. Verify the DTC does not set.
      • If the DTC sets, replace the K56 Serial Data Gateway Module.
      • Go to next step: If the DTC does not set
    3. All OK.
    • Go to next step: If DTC U1980 is not set 
  3. All OK
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