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HOMESERVICE MANUALSCHEVROLET2010CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEIGNITION SWITCH/STEERING LOCKWIRING SYSTEMS AND POWER MANAGEMENT - DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC INFORMATION AND PROCEDURESBOSCH CONNECTORS (ECM)REMOVAL PROCEDURE
2010 Chevrolet Chevy Express G3500, Van Passenger Extended

Removal Procedure

2010 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Removal Procedure
    Fig 1: View Of Bosch Connectors
    GM1709276Courtesy of GENERAL MOTORS CORP.
  1. Locate the assist lever on the top of the connector. Move the assist lever to the forward position.
    Fig 2: Identifying Assist Lever In Forward Position
    GM1709277Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the connector from the component.
    3. Fig 3: View Of Releasing Locking Tabs
    GM1709273Courtesy of GENERAL MOTORS CORP.
  3. Locate the dress cover locking tabs at the corners of the connector. Use a small flat-bladed tool to release the locking tabs and remove the dress cover.
    4. Fig 4: View Of Terminal Positive Assurance (TPA) Connector
    GM1709274Courtesy of GENERAL MOTORS CORP.
  4. The terminal positive assurance (TPA) is located in the front of the connector.
    5. Fig 5: View Of Removing TPA From Connector
    GM1709278Courtesy of GENERAL MOTORS CORP.
  5. Use a small flat-blade tool to remove TPA from the connector.
    6. Fig 6: View Of Special Tools And Terminals
    GM1709275Courtesy of GENERAL MOTORS CORP.
  6. Use the J 38125-213 or the J 38125-556 tool to release the terminals by inserting the tool into the terminal release cavity. See the release tool cross reference in the Reference Guide of the J-38125  to ensure that the correct release tool is used.
  7. While holding the removal tool in place, gently pull the wire out of the back of the connector. Always remember never use force when pulling a terminal out of a connector.
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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.