Canada - ABS/VSC - MIL ON, DTC C1247 Set
T-TCI-3851September 25, 2012
ABS/VSC DTC C1247 - STROKE SENSOR DETECTION LOGIC UPDATE
Service Category
Brake
Section
Brake Control/Dynamic Control System
Market
Canada
APPLICABILITY:
INTRODUCTION:
Some 2007 - 2011 model year Camry HV and 2004 - 2009 model year Prius vehicles' brake systems may exhibit a MIL "ON" and brake warning lights (ABS/VSC) illuminated in the instrument panel with Diagnostic Trouble Code (DTC) C1247 (Stroke Sensor Malfunction) stored in the ABS/VSC Electronic Control Unit (ECU). This DTC may set as a result of overly sensitive monitoring logic without any other ABS/VSC system issue. Follow the procedure in this bulletin to properly diagnose the system and, if necessary, replace the ABS/VSC ECU with an ECU containing updated monitoring logic.
PRODUCTION CHANGE INFORMATION:
This TSB applies to the following vehicles:
^ All 2004 - 2009 MY Prius vehicles.
^ All Japan built 2007 - 2011 MY Camry HV vehicles.
^ TMMK built 2007 - 2011 MY Camry HV vehicles produced BEFORE the Production Change Effective VIN shown.
WARRANTY INFORMATION:
PARTS INFORMATION:
REQUIRED TOOLS & EQUIPMENT:
REPAIR PROCEDURE:
1. Using Techstream perform a Health Check and confirm that DTC C1247 is present in the ABS/VSC ECU.
2. Follow the diagnostics for this DTC.
Refer to the ETAS/TIS library applicable model and model year Repair Manual:
^ 2007 - 2011 Camry HV:
Brake - Brake Control/Dynamic Control System - "Brake Control: Electronically Controlled Brake System: C1247/47, C1346/71, C1392/48: Stroke Sensor Malfunction"
^ 2004 - 2005 Prius:
Brake - Brake Control/Dynamic Control System - "Electronically Controlled Brake System: C1247/47, C1392/48 Un-correction of A Zero Point of the Stroke Sensor"
^ 2006 - 2009 Prius:
Brake - Brake Control/Dynamic Control System - "Brake Control: Electronically Controlled Brake System: C1247/47, C1392/48: Stroke Sensor Malfunction"
3. In the event that NO problem can be found for this DTC replace the ABS/VSC ECU.
Refer to the ETAS/TIS library applicable model and model year Repair Manual:
^ 2007 - 2011 Camry HV:
Brake - Brake Control/Dynamic Control System - "Brake Control: Skid Control ECU"
^ 2004 - 2005 Prius:
Brake - Brake Control/Dynamic Control System - "Skid Control ECU Assy: Replacement"
^ 2006 - 2009 Prius:
Brake - Brake Control/Dynamic Control System - "Brake Control: Skid Control ECU: Removal / Installation"
4. Clear any stored DTCs.
5. Disconnect Techstream.
6. Test drive vehicle to confirm the condition has been corrected.
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