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Home >> Infiniti >> 2015 >> QX80 Base, AWD >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Door & Lock (Diagnostic Trouble Codes (DTCS), Symptom Tests And R & I) >> DTC/Circuit Diagnosis >> DTC B2420: Close Switch >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC CONSULT display description DTC detecting condition Possible cause
B2420 CLOSE SW When the automatic back door control unit detects any of the following conditions
  • The change of close switch cannot be detected for 3 second or more after starting the closure close output for the 3rd time in a row
  • Close switch
  • Harness or connectors

    (Close switch circuit is open or shorted)

  • Automatic back door control module
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