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Home >> Chevrolet >> 2012 >> Volt >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Programming And Setup - All Systems) >> Repair Instructions >> Hybrid Powertrain Control Module 2 Programming and Setup >> Replace and Program ECU or Reprogram ECU
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Replace and Program ECU or Reprogram ECU

WARNING: This page is about a different car, the 2011 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.

To program a replacement or an existing ECU, perform the following procedure:

  1. Install EL-49642:  SPS programming support tool.
  2. Access the Service Programming System (SPS) and follow the on-screen instructions.
  3. On the SPS Supported Controllers screen, select Hybrid Powertrain Control Module 2 - Programming and follow the on-screen instructions.
  4. At the end of programming, choose the "Clear All DTCs" function on the SPS screen.
  5. With a scan tool, perform the Hybrid/EV Battery Pack Data Reset Function.
  6. With a scan tool, perform the Hybrid/EV Battery Pack Capacity Learn Function.
  7. With a scan tool, perform the Clear Secured High Voltage DTCs Function.
  8. With a scan tool, perform the Hybrid Battery Pack Coolant Control Solenoid Valve Learn procedure.
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