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Home >> Suzuki >> 2012 >> Equator RMZ-4 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Performance - VQ40DE - (5 Of 6) >> DTC P0037, P0038, P0057, P0058: HO2S2 Heater >> On Board Diagnosis Logic

On Board Diagnosis Logic

DTC DETECTING CONDITION AND POSSIBLE CAUSE

DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0037
0037 (Bank 1)
Heated oxygen sensor 2 heater control circuit low The current amperage in the heated oxygen sensor 2 heater circuit is out of the normal range. (An excessively low voltage signal is sent to ECM through the heated oxygen sensor 2 heater.)
  • Harness or connectors (The heated oxygen sensor 2 heater circuit is open or shorted.)
  • Heater oxygen sensor 2 heater
P0057
0057 (Bank 2)
P0038
0038 (Bank 1)
Heated oxygen sensor 2 heater control circuit high The current amperage in the heated oxygen sensor 2 heater circuit is out of the normal range. (An excessively high voltage signal is sent to ECM through the heated oxygen sensor 2 heater.)
  • Harness or connectors (The heated oxygen sensor 2 heater circuit is shorted.)
  • Heater oxygen sensor 2 heater
P0058
0058 (Bank 2)