T-SB-0041-14 Rev

T-SB-0041-14
Rev1
June 25, 2014
ABS Brake Warning Light ON
Service
Category
Brake
Section
Brake Control/Dynamic Control System
USA
Market
Applicability
YEAR(S)
MODEL(S)
2007 – 2011
Camry HV
ADDITIONAL INFORMATION
REVISION NOTICE
September 11, 2014 Rev1:
• The Parts Information section has been updated.
Any previous printed versions of this bulletin should be discarded.
Introduction
Some 2007 – 2011 model year Camry HV vehicles may exhibit a condition where the brake, ABS,
and/or TRAC warning light(s) are ON and/or a Check VSC message is displayed. Diagnostic Trouble
Code (DTC) C1391, C1252, C1253 or C1256 may be stored. This condition may be caused by a
small internal brake fluid leak inside the brake actuator. Follow the Repair Procedure in this bulletin
to address this condition.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
896051
R & R Brake Actuator Assembly
1.2
44050-30300
8A
71
APPLICABLE WARRANTY
• This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months
or 36,000 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
PART NUMBER
PREVIOUS
NEW
44050-30660
04003-44830
PART NAME
QTY
Actuator Assy, Brake w/ Fluid
1
© 2014 Toyota Motor Sales, USA
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Rev1
T-SB-0041-14
June 25, 2014
Page 2 of 3
ABS Brake Warning Light ON
Required Tools & Equipment
REQUIRED EQUIPMENT
Techstream 2.0*
SUPPLIER
ADE
Techstream Lite
PART NUMBER
QTY
TS2UNIT
TSLITEPDLR01
1
* Essential SST.
NOTE
• Only ONE of the Techstream units listed above is required.
• Software version 9.20.022 or later is required.
• Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE) at
1-800-368-6787.
Repair Procedure
1. Using Techstream, check for stored DTC(s). Record any stored DTC(s).
2. Check for brake fluid leaks in the brake line between the brake actuator and the wheel cylinder(s).
Is the brake dragging?
• NO — Continue to step 3.
• YES — If there is fluid leakage or dragging, this bulletin does NOT apply. Continue
diagnosis using the applicable Repair Manual.
3. Wait 90 seconds without operating the brake pedal.
4. After completing diagnosis, select ABS/VSC in the Data List mode of Techstream and read the
ACC PRESS SENS value.
Check that the output value of the accumulator pressure sensor does NOT decrease and that
the pump motor is NOT activated due to a decrease in accumulator pressure.
TESTER DISPLAY
MEASUREMENT ITEM/RANGE
NORMAL CONDITION
ACC PRESS
SENS
Accumulator Pressure Sensor/min: 0 V, max: 5 V
Specified Value: 2.6 to 3.8 V
• OK – Refer to the Technical Information System (TIS), applicable model and model year
Repair Manual for C1391 to continue diagnosis:
• 2007 (03/2006 – 10/2006) / 2007 (10/2006 – ) / 2008 / 2009 / 2010 / 2011 Camry HV:
Brake – Brake Control/Dynamic Control System – “Brake Control: Electronically
Controlled Brake System: C1391/69; Accumulator Leak Malfunction”
© 2014 Toyota Motor Sales, USA
T-SB-0041-14
Rev1
June 25, 2014
Page 3 of 3
ABS Brake Warning Light ON
Repair Procedure (Continued)
• If pressure sensor output value does NOT reach specified minimum.
Refer to TIS, applicable model and model year Repair Manual for C1252 to continue
diagnosis. After completing diagnosis and repair, proceed to step 6.
• 2007 / 2008 / 2009 / 2010 / 2011 Camry HV:
Brake – Brake Control/Dynamic Control System – “Brake Control: Electronically
Controlled Brake System: C1252/52, C1253/53 Brake Booster Pump Motor on Time
Abnormally Long”
• If pressure sensor output value decreases, continue to step 5.
5. Replace the brake actuator with the NEW part.
Refer to TIS, applicable model and model year Repair Manual:
• 2007 (03/2006 – 10/2006) / 2007 (10/2006 – ) / 2008 / 2009 / 2010 / 2011 Camry HV:
Brake – Brake Control/Dynamic Control System – “Brake Control/Dynamic Control Systems:
Brake Actuator: Removal”
• 2007 (03/2006 – 10/2006) / 2007 (10/2006 – ) / 2008 / 2009 / 2010 / 2011 Camry HV:
Brake – Brake Control/Dynamic Control System – “Brake Control/Dynamic Control Systems:
Brake Actuator: Installation”
6. After completing diagnosis and repair, select ABS/VSC in the Data List mode of Techstream
and read the ACC PRESS SENS value to confirm the repair.
TESTER DISPLAY
MEASUREMENT ITEM/RANGE
NORMAL CONDITION
ACC PRESS
SENS
Accumulator Pressure Sensor/min: 0 V, max: 5 V
Specified Value: 2.6 to 3.8 V
7. Test drive the vehicle to confirm that the condition has been corrected.
© 2014 Toyota Motor Sales, USA