FixVault

DTC P2237: Ho2S Pumping Current Circuit/Open-Bank 1, Sensor 1: DTC Detecting Condition

DTC DETECTING CONDITION

Item Detecting Condition Possible Cause
DTC Strategy
  • Open circuit check of front HO2S circuit
  • Contact resistance in connectors
  • Open or Short to ground in HO2S circuit
  • Front HO2S
Enable Conditions
  • No relevant failure
Threshold Value
  • 0.9941 < Lambda < 1.0059
Diagnostic Time
  • Approx. 1300 sec.