Diagnostic Aids

Control module will not go into closed loop if Code EO13 is set. Code EO13 may set if vehicle runs out of fuel or stalls while vehicle is in motion. If oxygen sensor ground becomes loose, a false oxygen sensor reading will occur. This can result in a Code EO13 being set.

Fig 1: Code EO13, Schematic, Open Oxygen Sensor Circuit

Fig 2: Code EO13, Flow Chart, Open Oxygen Sensor Circuit