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Home >> GMC >> 2018 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P205B - P2BAA) And Symptoms) >> Diagnostic Information And Procedures >> DTC P245A-P245D: Exhaust Gas Recirculation (EGR) Cooler Bypass Solenoid Valve >> Component Testing

Component Testing

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

Static Test

  1. Ignition OFF, disconnect the harness connector at the Q47 Exhaust Gas Recirculation Cooler Bypass Solenoid Valve.
  2. Test for 25 - 35 Ω between the control terminal 1 and the voltage terminal 2 of the Q47 Exhaust Gas Recirculation Cooler Bypass Solenoid Valve.
    • If not within 20 - 35 Ω 

      Replace the Q47 Exhaust Gas Recirculation Cooler Bypass Solenoid Valve.

    • Go to next step: If within 20 - 35 Ω 
  3. Test for infinite resistance between each terminal and the Q47 Exhaust Gas Recirculation Cooler Bypass Solenoid Valve housing.
    • If less than infinite resistance 

      Replace the Q47 Exhaust Gas Recirculation Cooler Bypass Solenoid Valve.

    • Go to next step: If infinite resistance 
  4. All OK.