Sienna AWD V6-3.3L (3MZ-FE) (2004)
Oxygen Sensor: Customer Interest
Engine Controls - MIL ON/DTCs P0037/P0038/P0136
T-SB-0343-08
November 5, 2008
M.I.L. "ON" DTC P0037, P0038, or P0136
Service Category
Engine/Hybrid System
Section
Engine Control
Market
USA
Applicability
TSB SUPERSESSION NOTICE
The information contained in this TSB supersedes TSB No. EG041-04.
-
The Introduction has been modified.
-
The Toyota Diagnostic Tester has been replaced with TIS Techstream in the Required Tools & Equipment section.
-
The table in step 2 and the text in step 3 have been updated in the Repair Procedure.
TSB No. EG041-04 is Obsolete and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before
proceeding.
Introduction
Some 2004 model year Sienna vehicles equipped with AWD may exhibit a M.I.L. "ON" condition with one or more of the following Diagnostic Trouble
Codes (DTCs):
-
P0037 - Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2)
-
P0038 - Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)
-
P0136 - Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
Use the following repair procedure to address customer concerns.
Production Change Information
This TSB applies to vehicles produced BEFORE the Production Change Effective VIN shown above.
Warranty Information
APPLICABLE WARRANTY
-
This repair is covered under the Toyota Federal Emission Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs