ABS/TCS - MIL, Brake Lamp ON/DTC C1247 Set

T-SB-0174-12

September 17, 2012

ABS/VSC DTC C1247 - Stroke Sensor Detection Logic Update

Service Category
Brake

Section
Brake Control/Dynamic Control System

Market
USA

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 the 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 bulletin 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.

Parts Information

Warranty Information

Required Tools & Equipment