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Home >> Cadillac >> 2016 >> CTS Base, AWD >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC P105B-P105D, P1060 or P1063: Stop-Start Capacitor Temperature Sensor >> Circuit/System Testing
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Circuit/System Testing

WARNING:

Ultracapacitors should not be opened, disassembled, crushed, burned, charged over 5V or exposed to high temperatures greater than 81.6°C (179°F). Ultracapacitors contain acetonitrile. If ultracapacitor leaks or ruptures it will emit flammable liquid and vapor with an aromatic ether-like odor. Harmful if inhaled or absorbed through the skin. Causes respiratory tract, eye and skin irritation. May be harmful if swallowed. Can cause target organ damage. Arcing may also occur when charged and shorted, resulting in molten metal splattering and arc-flash hazards. To reduce the risk of personal injury and/or vehicle damage:

  • Do not breath vapor or mist, assure adequate ventilation of area.
  • Do not ingest.
  • Do not eat, drink or smoke when using this product.
  • Avoid contact with eyes, skin and clothing. In case of exposure to ultracapacitor contents, wash affected area for at least 15 minutes with generous amounts of water and seek medical attention.
  • Keep away from heat sparks and flame.
  • Remove jewelry before handling.
  • Follow diagnostic and repair procedures to discharge the ultracapacitor and disconnect the negative battery terminal when requested.
  1. Ignition OFF, key out of the ignition, all vehicle systems OFF, this may take up to 2 min. Disconnect the X1 harness connector at the C10 Stop/Start Capacitor.
  2. Test for less than 70 Ω between the low reference circuit terminal 4 and ground.
    • If 70 Ω or greater 
    1. Ignition OFF, disconnect the harness connector at the K176 Stop/Start Capacitor Control Module.
    2. Test for less than 2 Ω in the low 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 K176 Stop/Start Capacitor Control Module.
    • If less than 70 Ω 
  3. Ignition ON.
  4. Verify the scan tool Stop/Start Capacitor Temperature Sensor parameter is less than or equal to -40°C.
    • If greater than -40°C 
    1. Ignition OFF, disconnect the harness connector at the K176 Stop/Start Capacitor Control Module.
    2. Test for infinite resistance between the signal circuit terminal 3 and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the K176 Stop/Start Capacitor Control Module.
    • If less than or equal to -40°C 
  5. Install a 3 A fused jumper wire between the signal circuit terminal 3 and the low reference circuit terminal 4.
  6. Verify the scan tool Stop/Start Capacitor Temperature Sensor parameter is greater than or equal to 196°C.
    • If less than 196°C 
    1. Ignition OFF, remove the jumper wire, disconnect the harness connector at the K176 Stop/Start Capacitor Control Module.
    2. Test for 1 V between the signal circuit terminal 3 and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • If less than 1 V
    3. Ignition 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 K176 Stop/Start Capacitor Control Module.
    • If greater than or equal to 196°C 
  7. Replace the C10 Stop/Start Capacitor.
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