Canada - Engine Controls - MIL ON/DTC P3190, P3191/P0A0F

T-TCI-3717

February 9, 2012

MIL "ON" DTC P3190, 3191 AND/OR P0A0F

Service Category
Engine/Hybrid System

Section
Engine Control

Market
Canada





APPLICABILITY:

INTRODUCTION:
Some 2010-2011 model year Prius vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code(s) (DTC) P3190 (Poor Engine Power), P3191 (Engine Does Not Start) and/or P0A0F (Engine Failed to Start). The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) logic has been revised to address this condition.





CALIBRATION INFORMATION:





WARRANTY INFORMATION:





PARTS INFORMATION:





REQUIRED TOOLS & EQUIPMENT:

REPAIR PROCEDURE:





1. Check for the Authorization Modifications Label affixed to the vehicle in the location show in Figure 1. 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 GRB 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 Battery Diagnostic Station Instruction Manual located on the ETAS/TIS library > Tools > tools and equipment > GR8 Battery Diagnostic Station Instructions Manual.

Follow the procedures outlined in TSB No. 2758 "Techstream ECU Flash Reprogramming Procedure", and flash the ECM (PCM) with the NEW calibration file update.

3. 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 chart for the NEW CALIBRATION ID]

^ Calibration ID(s) [Refer to the Calibration Information chart for the NEW CALIBRATION ID]

^ Dealer Code

^ Repair Date

^ Change Authority [This TSB Number]

B Affix the Authorized Modification Label to the vehicle at the location show in Figure 1. The Authorized Modifications Label is available through your facing PDC, P/N 00451-00001-25.

4. Test drive the vehicle to confirm proper vehicle operation.

NOTE:
Issue of the Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.

© 2012 Toyota Motor Sales, Canada