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Home >> Cadillac >> 2018 >> CT6 Plug-In >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Power Door Lock System And Release Systems >> Diagnostic Information and Procedures >> DTC P0CCC, P0CCE, or P0CCF >> Circuit/System Testing
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Circuit/System Testing

  1. Vehicle OFF, disconnect the harness connector at the B197 Charge Port Door Position Switch. It may take up to 2 minutes for all vehicle systems to power down.
  2. Test for less than 10 Ω between the ground circuit terminal C and ground.
    • If 10 Ω or greater 
    1. Vehicle OFF.
    2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
    • Go to next step: If less than 10 Ω 
  3. Vehicle in Service Mode, test for 4.8 - 5.2 V between the 5 V reference circuit terminal B and ground.
    • If less than 4.8 V 
    1. Vehicle OFF, disconnect the harness connector at the K114B Hybrid/EV Powertrain Control Module 2.
    2. Test for infinite resistance between the 5 V reference circuit and ground
      • If less than infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    3. Test for less than 2 Ω in the 5 V reference circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K114B Hybrid/EV Powertrain Control Module 2.
    • If greater than 5.2 V 
    1. Vehicle OFF, disconnect the harness connector at the K114B Hybrid/EV Powertrain Control Module 2, Vehicle in Service Mode.
    2. Test for less than 1 V between the 5 V reference circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V, replace the K114B Hybrid/EV Powertrain Control Module 2.
    • Go to next step: If between 4.8 - 5.2 V 
  4. Verify the scan tool Charge Port Door parameter is Closed.
    • If not Closed 
    1. Vehicle OFF, disconnect the harness connector at the K114B Hybrid/EV Powertrain Control Module 2.
    2. Test for infinite resistance between the signal circuit terminal A and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the K114B Hybrid/EV Powertrain Control Module 2.
    • Go to next step: If Closed 
  5. Install a 3 A fused jumper wire between the signal circuit terminal A and the 5 V reference circuit terminal B.
  6. Verify the scan tool Charge Port Door parameter is Open.
    • If not Open 
    1. Vehicle OFF, remove the jumper wire, disconnect the harness connector at the K114B Hybrid/EV Powertrain Control Module 2, Vehicle in Service Mode.
    2. Test for less than 1 V between the signal circuit terminal A and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • Go to next step: If less than 1 V
    3. Vehicle OFF
    4. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K114B Hybrid/EV Powertrain Control Module 2.
    • Go to next step: If Open 
  7. Test or replace the B197 Charge Port Door Position Switch.
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