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Home >> Chevrolet >> 2017 >> Volt Premier >> Repair and Diagnosis (Single Page) >> Body & Frame >> Ignition Switch/Steering Lock >> Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC B097B: Power Mode Start Switch Circuit (1 Of 2) >> Circuit/System Testing

Circuit/System Testing

  1. Vehicle OFF and all vehicle systems OFF, disconnect the harness connector at the S83 Vehicle On/Off Switch. It may take up to 2 min 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. 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. Test for less than 10 Ω between the low reference circuit terminal 7 and ground.
    • If 10 Ω or greater 
    1. 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, replace the K84 Keyless Entry Control Module.
    • If less than 10 Ω 
  4. Connect the S83 Vehicle On/Off Switch, Vehicle in Service Mode.
  5. Disconnect the S83 Vehicle On/Off Switch.
  6. Verify the scan tool K9 Body Control Module Push Button Ignition Switch Voltage parameter is greater than 11 V.
    • If 11 V or less 
    1. Connect the S83 Vehicle On/Off Switch.
    2. Vehicle OFF, disconnect the X2 harness connector at the K9 Body Control Module and S83 Vehicle On/Off Switch.
    3. Test for infinite resistance between the signal circuit terminal 6 and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the K9 Body Control Module.
    • If greater than 11 V 
  7. Install a 3 A fused jumper wire between the signal circuit terminal 6 and ground.
  8. Verify the scan tool K9 Body Control Module Push Button Ignition Switch Voltage parameter is less than 1 V.
    • If 1 V or greater 
    1. Disconnect the harness connector at the K9 Body Control Module.
    2. Test for less than 1 V between the signal circuit and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V
    3. Test for less than 2 Ω in 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 K9 Body Control Module.
    • If less than 1 V 
  9. Connect the harness connector at the S83 Vehicle On/Off Switch.
  10. Verify the scan tool K9 Body Control Module Push Button Ignition Switch Voltage parameter is 8 - 10 V, with the S83 Vehicle On/Off Switch released.
    • If not between 8 - 10 V 

      Test or replace the S83 Vehicle On/Off Switch.

    • If between 8 - 10 V 
  11. Verify the scan tool K9 Body Control Module Push Button Ignition Switch Voltage parameter is 4 - 7 V, with the S83 Vehicle On/Off Switch pressed.
    • If not between 4 - 7 V 

      Test or replace the S83 Vehicle On/Off Switch.

    • If between 4 - 7 V 
  12. Disconnect the X1 harness connector at the K84 Keyless Entry Control Module.
  13. Test for infinite resistance between the signal circuit terminal 11 and ground.
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • If infinite resistance 
  14. Vehicle in Service Mode.
  15. Test for less than 1 V between the signal circuit terminal 11 and ground.
    • If 1 V or greater 

      Repair the short to voltage on the circuit.

    • If less than 1 V 
  16. Test for 4.5 - 5.5 k Ω between the signal circuit terminal 11 and the low reference circuit terminal 12, with the S83 Vehicle On/Off Switch released.
    • If not between 4.5 - 5.5 k Ω 
    1. Vehicle OFF, disconnect the harness connector at the S83 Vehicle On/Off Switch.
    2. 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, test or replace the S83 Vehicle On/Off Switch.
    • If between 4.5 - 5.5 k Ω 
  17. Test for 1 - 1.5 k Ω between the signal circuit terminal 11 and the low reference circuit terminal 12, with the S83 Vehicle On/Off Switch pressed.
    • If not between 1 - 1.5 k Ω 

      Test or replace the S83 Vehicle On/Off Switch.

    • If between 1 - 1.5 k Ω 
  18. Replace the K84 Keyless Entry Control Module.
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