GS 300 RWD V6-3.0L (3GR-FSE) (2006)
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Engine Control Module: All Technical Service Bulletins
Engine Controls - MIL ON/Multiple DTCs Set
L-SB-0092-09
August 13, 2009
MIL "ON" DTC P0172, P0175, P2196, P2198, P0138, P0158, P0037, or P0057
Service Category
Engine/Hybrid System
Section
Engine Control
Market
USA
Applicability
TSIB SUPERSESSION NOTICE
The information contained in this TSIB supersedes the information in TSIB Nos. EGOO7-07 and EGOO8-07. Two key changes to note are:
^
Replacement of PCV valve has been eliminated from the Repair Procedure.
^
Repair Procedure has been divided into 3 procedures according to DTC(s) and calibration IDs. TSIB Nos. EGOO7-07 and EGOO8-07 are now
obsolete.
Introduction
Under certain driving conditions some 2006 model year GS 300 vehicles may exhibit a MIL "ON" condition with at least one of the following
Diagnostic Trouble Codes (DTCs):
^
P0172 (System Too Rich [Bank 1])
^
P0175 (System Too Rich [Bank 2])
^
P2196 (Oxygen [A/F] Sensor Signal Stuck Rich [Bank 1 Sensor 1])
^
P2198 (Oxygen [A/F] Sensor Signal Stuck Rich [Bank 2 Sensor 1])
^
P0138 (Oxygen Sensor Circuit High Voltage [Bank 1 Sensor 2])
^
P0158 (Oxygen Sensor Circuit High Voltage [Bank 2 Sensor 2])
^
P0037 (Oxygen Sensor Heater Control Circuit Low [Bank 1 Sensor 2])
^
P0057 (Oxygen Sensor Heater Control Circuit Low [Bank 2 Sensor 2])
The oxygen sensor type has been changed from a planar to a cup style. The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM)
logic has been modified to address this condition and accommodate the new oxygen sensor. Refer to the following repair procedure to address customer
concerns.
To properly address this condition three repair procedures are provided. Carefully review the Repair Procedure Overview below and all steps of this
bulletin BEFORE beginning any repair.
Before proceeding, verify the ECM (PCM) calibration has NOT been updated by checking for the Authorized Modifications Label (shown in step 2 of
