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Home >> Isuzu >> 2007 >> Ascender 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.2L - DTC P0013 To DTC P0134 >> DTC P0053 or P0054 >> Circuit/System Verification

Circuit/System Verification

  1. Allow the engine to reach operating temperature.
  2. Engine running, verify the appropriate scan tool HO2S Heater parameter is varying between 0.5-2.0 amp.
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