2015 Chevrolet VoltFACTORY OEM SERVICE PROCEDURE

Accessory DC Power Control Module Replacement

Fig 1: Accessory DC Power Control Module (Built After 10/18/12)
GM3217418Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
WARNING: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.

The High Voltage Disabling procedure includes the following steps:

  • Identify how to disable high voltage.
  • Identify how to test for the presence of high voltage.
  • Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.

Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:

  • Safety glasses with appropriate side shields when within 15 meters (50 feet) of the vehicle, either indoors or outdoors.
  • Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
    • Visually and functionally inspect the gloves before use.
    • Wear the Insulation gloves with leather protectors at all times when working with the high voltage battery assembly, whether the system is energized or not.

Failure to follow the procedures may result in serious injury or death.

Preliminary Procedures

  1. Disable the high voltage system. Refer to High Voltage Disabling .
  2. Disconnect the negative and positive cables from the accessory DC power control module. Refer to Battery Positive and Negative Cable Replacement (B+ APM Module to Battery Fuse Block) and Battery Positive and Negative Cable Replacement (APM Module Ground Cable) .
1 Accessory DC Power Control Module Nut (Qty: 2)
CAUTION: Refer to Fastener Caution .

Tighten 
22 N.m (16 lb ft)
2 Accessory DC Power Control Module Bolt (Qty: 2)
Tighten 
22 N.m (16 lb ft)
3 Accessory DC Power Control Module

Procedures

  1. Disconnect the high voltage connector from the right side of the module.
  2. Disconnect the electrical connector from the front of the module.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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