LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2000 >> Jimmy 2D Utility, RWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 4.3L >> Diagnostic Tests >> DTC P0154: Heated Oxygen Sensor No. 1, Bank 2 - Insufficient Activity ("L" & "M" Series) >> Diagnostic Aids

Diagnostic Aids

Check for faulty connections or damaged harness. Check for faulty HO2S 1 heater. Observe scan tool while moving all related harnesses and connectors. A change in scan tool display indicates fault location.