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Home >> Chevrolet >> 2015 >> Volt >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Wiring Systems And Power Management - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P1A60: Battery Energy Control Module Ignition Accessory Switch Circuit >> Circuit/System Testing >> Battery Energy Control Module Circuit Malfunction

Battery Energy Control Module Circuit Malfunction

  1. Perform the High Voltage Disabling procedure before proceeding with this diagnostic. Refer to High Voltage Disabling .
  2. Reconnect the 12 V battery.
  3. Vehicle OFF, disconnect the X1 harness connector at the K16 Battery Energy Control Module.
  4. Connect a test lamp between the serial data wake-up circuit terminal 14 and ground.
  5. Verify the test lamp turns ON and OFF when cycling the S39 Ignition Mode Switch between Vehicle in Service Mode and Vehicle OFF.
    • If the test lamp is always OFF 
    1. Vehicle OFF.
    2. Test for less than 2 Ω in the serial data wake-up 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 the test lamp is always ON 
    1. Vehicle OFF, remove the test lamp
    2. Test for less than 1 V between the ignition 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.
    • If the test lamp turns ON and OFF 
  6. Test or replace the K16 Battery Energy Control Module.
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