FixVault

Circuit Inspection

Item Normal value Prerequisite condition (+) Probe (-) Probe
Pumping Current Circuit: Resistance (Open) Below 1Ω
  1. Ignition switch: OFF
  2. Sensor, ECM connector: Disconnected
Pumping Current Terminal (HO2S (S1) connector) Pumping Current Terminal (ECM connector)
  1. Is the result within specifications?

YES 

NO