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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P040B - P204D)) >> Diagnostic Information And Procedures >> DTC P1048, P1049, P2047, P2048, Or P2049: Reductant Injector Control Circuit >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF, disconnect the harness connector at the Q61 Reductant Injector.
  2. Test for 10 - 14 Ω between the high control circuit terminal 2 and low control circuit terminal 1.
    • If not within 10 - 14 Ω 

      Replace the Q61 Reductant Injector

    • Go to next step: If within 10 - 14 Ω 
  3. Test for infinite resistance between each terminal and the sensor housing/case.
    • If less than infinite resistance 

      Replace the Q61 Reductant Injector.

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