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Home >> Chevrolet >> 2022 >> Tahoe SSV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (5 Of 5)) >> Diagnostic Information and Procedures >> DTC P226D >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition - On / Vehicle - In Service Mode
  2. Verify there are no DTCs set related to the following component/system:
    • B9 Ambient Air Temperature Sensor
    • B75C Multifunction Intake Air Sensor
    • B131 Exhaust Temperature Sensor
    • B154 Diesel Particulate Filter Exhaust Differential Pressure Sensor
    • Go to next step: If a related DTC is not set 
  3. Verify DTC P226D is not set.
    • If the DTC is set 

      Replace the diesel particulate filter.

    • Go to next step: If no DTC is set 
  4. All OK.
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