DTC P2195, DTC P2196, DTC P2197 & DTC P2198: 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 connectors 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.

NOTE: Bank No. 1 is also know as right bank (RH).

NOTE: For component location, see appropriate illustration in THEORY & OPERATION article.

Code Definition

DTC P2195: Oxygen Sensor Signal Stuck Lean (Bank 1 Sensor 1)
DTC P2196: Oxygen Sensor Signal Stuck Rich (Bank 1 Sensor 1)
DTC P2197: Oxygen Sensor Signal Stuck Lean (Bank 2 Sensor 1)
DTC P2198: Oxygen Sensor Signal Stuck Rich (Bank 2 Sensor 1)