Engine Controls - DTC P0500 Set/MIL ON
T-SB-0072-10Rev1
February 10, 2010
MIL "ON" DTC P0500
Service Category
Engine/Hybrid System
Section
Engine Control
Market
USA
Applicability
TSB REVISION NOTICE
June 8, 2010 Rev1:
^ The Repair Procedure has been updated to include additional steps on removal of the 10A ECU-IG fuse (steps 2 and 4).
^ The Parts Information table has been updated.
Any previous printed versions of this service bulletin should be discarded.
Introduction
Some 2002 - 2003 model year Camry 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.
Parts Information
NOTE
^ The ECM (PCM) should NOT be replaced as part of the repair procedure.
^ Authorized Modification Labels may be ordered in packages of 25 from the Materials Distribution Center (MDC) through Dealer Daily - Dealer Support Materials Orders.
Calibration Information
Required Tools & Equipment
Inspection Procedure
1. Inspect the Freeze Frame Data stored under "Engine and ECT" with the 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
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. Remove the 10A ECU-IG fuse from the Instrument Panel Junction Block assembly. This action prevents possible activation of the ABS relay resulting in ECM reprogramming failure.
ECU damage may occur if the 10A fuse is NOT removed.
3. Flash reprogram the ECM (PCM).
^ 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 GR8 Instruction Manual located on the Technical Information System (TIS), Diagnostics - Tools & Equipment - Battery Diagnostics.
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.
4. Reinstall the 10A ECU-IG fuse in the Instrument Panel Junction Block assembly.
5. Start the engine and warm it up to normal operating temperature before test driving.
6. Test drive the vehicle to confirm proper vehicle operation and ECM (PCM) learning.
Refer to TIS applicable model year Camry Repair Manual:
7. Install the Authorized Modifications Label.
A. Using a permanent marker enter the following information on the label:
^ ECM part number [Refer to the Parts Information 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.