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Circuit/System Testing

  1. Vehicle OFF, disconnect the harness connector at the B208 fuel door status switch assembly. 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 4 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.
    • If less than 10 Ω 
  3. Vehicle in Service Mode, test for 4.8-5.2 V between the 5 V reference circuit terminal 3 and ground.
    • If less than 4.8 V 
    1. Vehicle OFF, disconnect the harness connector at the K114B hybrid 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.
      • 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 powertrain control module 2.
    • If greater than 5.2 V 
    1. Vehicle OFF, disconnect the harness connector at the K114B hybrid 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 powertrain control module 2.
    • If between 4.8-5.2 V 
  4. Test or replace the B208 fuel door status switch assembly.
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