LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2017 >> Soul Base, Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 1.6L (3 Of 3) >> DTC P2237: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1) >> DTC Information >> DTC Detecting Condition
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
Case 1 DTC Strategy
  • Pumping Current circuit
  1. Poor connection
  2. Open power/ground in signal circuit
  3. HO2S (S1)
Enable Conditions
  • Fuel system status: Closed loop
  • Fuel factor changes greater than 0.1
Threshold Value
  • Sensor voltage between 1.49 ~ 1.51 V
Case 2 DTC Strategy
  • Activation check
Enable Conditions
  • Target Lambda between 0.97 ~ 1.03
  • Integrated Mass Flow greater than 0.3 kg
Threshold Value
  • Sensor voltage between 1.49 ~ 1.51 V
Case 3 DTC Strategy
  • Rationality check
Enable Conditions
  • Fuel cut
Threshold Value
  • Sensor voltage less than 0 V
Diagnosis Time
  • Immediate
MIL On Condition
  • -
scientia non olet · About LEMON Manuals