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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 31 (ENGINE CONTROLS - 6.6L - DIAGNOSIS (DTCs P0402-P2636)) >> DTC P2146, P2149, P2152, or P2155 >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the connector of the fuel injector to be tested.
  2. Connect a DMM between the terminals of the fuel injector and measure the resistance. The resistance should be 0.2-0.3 ohms.
    • If resistance is more than 0.2-0.3 ohms resistance, replace the fuel injector.
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