SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1859 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)REPAIR INSTRUCTIONSBATTERY POSITIVE AND NEGATIVE CABLE REPLACEMENT (LE5)REMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Refer to Battery Disconnect Warning .
  1. Release the electronic control module (ECM) bracket from the battery cover and set it aside with the ECM still connected. Refer to Engine Control Module Replacement .
    2. Fig 1: Battery Cover Retaining Tabs
    GM1876944Courtesy of GENERAL MOTORS CORP.
  2. Release the battery cover retaining tabs (2) and remove the battery cover (1).
    3. Fig 2: Battery Positive And Negative Cable Nuts
    GM1876504Courtesy of GENERAL MOTORS CORP.
  3. Loosen the positive cable nut (3) and remove the battery positive cable from the battery.
  4. Remove the battery negative cable ground nut (1) and remove the battery negative cable ground from the body ground stud.
    5. Fig 3: Battery Positive Cable Junction Block Nut
    GM1876759Courtesy of GENERAL MOTORS CORP.
  5. Remove the battery positive cable junction block nut (1) and remove the battery positive cable from the junction block.
    6. Fig 4: Engine Wiring Harness Ground Bolt
    GM1883964Courtesy of GENERAL MOTORS CORP.
  6. Remove the engine wiring harness ground bolt (1) and the battery negative cable ground at the back of the left side of the engine.
  7. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  8. Remove the starter solenoid BAT terminal nut (2) and remove the battery positive cable from the starter solenoid BAT stud.
  9. Remove the battery positive and negative cable from the vehicle.
  10. Transfer the battery current sensor if replacing the battery positive and negative cable. Refer to Battery Current Sensor Replacement .
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.