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Home >> Oldsmobile >> 2003 >> Bravada AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Self-Diagnostics - 4.2L >> Diagnostic Tests >> DTC P1137: Ho2S Circuit - Lean System (Bank 1; Sensor 2) >> Test Description

Test Description

The number below refer to the step numbers in the diagnostic procedures.

  1. 2 -  When the system is operating correctly, the HO2S 2 voltage should toggle greater than and less than the bias voltage.

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