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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1378 (Engine Controls And Fuel - 4.8L, 5.3L, 6.0L, 6.2L - DTC P069E To DTC P3449) >> DTC P3401, P3425, P3441, or P3449 >> Component Testing >> Dynamic Test

Dynamic Test

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the VLOM harness connector at the VLOM assembly.
  2. Connect the cable that is labeled power from the displacement on demand DoD tester to the VLOM connector.
  3. Connect the power leads from the DoD tester to B+ and ground.
  4. Command each VLOM solenoid ON and OFF using the DoD tester. You should be able to hear each solenoid turn ON and OFF.
    • If the function does not perform as specified, replace the VLOM assembly.
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