LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2006 >> TrailBlazer 6.0 H, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Control System - 4.2L - DTC P2101 To P2444) >> DTC P2440 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. With the ignition ON, the engine OFF, and the solenoid valve substituted with a test lamp, observe that the test lamp is not illuminated.
    • If the test lamp is illuminated, test for a short to voltage on the solenoid voltage supply circuit or a faulty relay.
  2. Inspect the AIR pump inlet and outlet hoses/pipes for restrictions.
  3. Inspect the solenoid valve for leaks.
scientia non olet · About LEMON Manuals