DTC P0037, DTC P0038, DTC P0057 & DTC P0058: Notes
WARNING: This page is about a different car, the 2003 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
If ECM replacement is instructed in following testing, always ensure ECM harness connector and ground circuit are okay. If either are suspect, repair and repeat testing to confirm ECM malfunction. If ECM is replaced, ECM must be programmed with proper ignition key code for engine immobilizer system. For programming procedures, see COMPUTER RELEARN PROCEDURES - LEXUS
article in GENERAL INFORMATION.
Code Definition
- DTC P0037: Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2)
- DTC P0038: Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)
- DTC P0057: Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 2)
- DTC P0058: Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 2)