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Home >> Buick >> 2019 >> Envision Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Driver Assistance Systems) >> Diagnostic Information and Procedures >> DTC P15F7 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • DTC P15F7 is an informational DTC.
  • Diagnose all other K20 Engine Control Module DTCs prior to DTC P15F7.
  1. Verify there are no other K20 Engine Control Module or communication DTCs set.
    • Go to next step: If a DTC is not set 
  2. Complete the diagnosis by looking for an intermittent serial data circuit fault. Refer to Scan Tool Does Not Communicate with High Speed GMLAN Device .
    • If an intermittent serial data circuit fault is found 

      Repair as necessary.

    • Go to next step: If an intermittent serial circuit fault is not found 
  3. Clear DTCs and operate the vehicle in the conditions that the customer experienced.
  4. Verify DTC P15F7 does not set.
    • If the DTC sets 

      Replace the appropriate component: K182 Parking Assist Control Module

    • Go to next step: If the DTC does not set 
  5. All OK.
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