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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Controls And Fuel - 2.5L (LCV) - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> DTC P2635 or P2BB3 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
NOTE:

Do NOT replace the control module if DTC P2635 is set. - K111 Fuel Pump Driver Control Module

  1. Verify the correct pressure: Fuel System Description
    • If a condition exists 

      Replace the appropriate component:

    • Go to next step: If no condition exists 
  2. All OK.
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