Engine Controls - DTC P0500/MIL ON
T-SB-0341-09Rev1
September 21, 2009
MIL "ON" DTC P0500
Service Category
Engine/Hybrid System
Section
Engine Control
Market
USA
Applicability
TSB REVISION NOTICE
June 9, 2010 Rev1:
^ The Repair Procedure has been updated for 2005 Avalon to ensure that TSB No. is completed prior to implementation of this TSB.
^ The Parts Information table has been updated.
Any previous printed versions of this service bulletin should be discarded.
Introduction
Some 2005 - 2007 model year Avalon and 2004 - 2006 model year Camry and Solara vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P0500 - Vehicle Speed Sensor "A". The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition occurring. Use the following repair procedure to address this condition.
Warranty Information
APPLICABLE WARRANTY
^ This repair is covered under the Toyota Federal Emission Warranty. This warranty is in effect for 96 months or 80,000 miles, whichever occurs first, from the vehicle's in-service date.
^ Warranty application is limited to occurrence of the specified condition described in this bulletin.
Required Tools & Equipment
Parts Information
Calibration Information
Inspection Procedure
1. Inspect the Freeze Frame Data stored under "Engine and ECT" with DTC P0500. (See Figure 1.)
2. Is the stored vehicle speed less than 5 mph (8 km/h)?
^ YES - Proceed to the Repair Procedure and flash reprogram the ECM.
^ NO - STOP - This TSB may not apply. Proceed with normal Repair Manual diagnostic procedures. If no fault can be found, then proceed to the Repair Procedure and flash reprogram the ECM.
Repair Procedure
NOTE
For 2005 model year Avalon vehicles ONLY:
Verify that TSB No. EG033-07, "ECM Calibration: Enhancement to Shifting Performance & Smoothness", has been implemented prior to beginning this TSB. TSB No. MUST be completed prior to implementation of this P0500 calibration.
1. Check for the Authorized Modifications Label affixed to the vehicle in the location shown in Figure 2. Confirm if the ECM (PCM) calibration has been updated. If the calibration ID listed is NOT the latest ECM (PCM) calibration - go to step 2.
2. Flash reprogram the ECM (PCM).
NOTE
^ The GR8 Battery Diagnostic Station MUST be used in Power Supply Mode to maintain battery voltage at 13.5 volts while flash reprogramming the vehicle.
^ For details on how to use the GR8 Battery Diagnostic Station, refer to the located on the Technical Information System (TIS), Diagnostics - Battery
Follow the procedures outlined in TSB No. T-SB-0064-10, "Techstream ECU Flash Reprogramming Procedure" and flash the ECM (PCM) with the NEW calibration file update.
3. Start the engine and warm it up to normal operating temperature before test driving.
4. Test drive the vehicle to confirm proper vehicle operation and ECM (PCM) learning.
Refer to TIS applicable model year Avalon Camry or Solara Repair Manual:
5. Install the Authorized Modifications Label.
A. Using a permanent marker enter the following information on the label:
^ ECM part number [Refer to the Parts In formation section for the CURRENT PART NUMBER]
^ Calibration ID(s) [Refer to the Calibration Identification Chart for the NEW CALIBRATION ID]
^ Dealer Code
^ Repair Date
^ Change Authority [This TSB number]
B. Affix the Authorized Modifications Label to the vehicle at the location shown in Figure 2. The Authorized Modifications Label is available through the MDC P/N 00451-00001-LBL.