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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 P1050: Reductant Level Sensor Invalid Range >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition Off, disconnect the X2 harness connector at the K115 Reductant Control Module
  2. NOTE:

    The reductant tank level must be full to ensure accurate resistance readings.

  3. Verify the resistance is within the specified range between the harness connector terminals listed below:
    • Terminal 15 - 16 (3.37 - 3.43 kΩ)
    • Terminal 16 - 17 (7.2 - 7.34 kΩ)
    • If not within the specified range 

      Replace the A38 Reductant Pump and Sensor Assembly.

    • Go to next step: If within the specified range 
  4. Replace the K115 Reductant Control Module.