T-SB-0235-12

@TOYOTA
T-SB-0235-12
Rev1
December
Technical Service Bulletin
5, 2012
Rear Brake Strut Improvement
Service
Category
Brake
Section
Brake (rear)
Market
USA
Toyota Supports ~
ASE Certification-
Applicability
YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2009 -2013
Corolla
WMl(s): JTD
2009 -2011
Corolla
WMl(s): 2T1, 5YF
REVISION NOTICE
August 30, 2013 Rev1:
• Applicability has been updated to include 2009 - 2011 model year North American produced
Corolla vehicles.
• Repair Procedure has been updated.
Any previous printed versions of this bulletin should be discarded.
SUPERSESSION NOTICE
The information contained in this bulletin supersedes SB No. T-SB-0189-12.
• Applicability has been updated to include 2009 - 2013 model year Japan built Corolla vehicles.
• Repair Procedure has been updated.
Service Bulletin No. T-SB-0189-12 is Obsolete and any printed versions should be discarded. Be
sure to review the entire content of this bulletin before proceeding.
Introduction
Some 2009 - 2013 Corolla vehicles may exhibit a condition where, over time, there is a slight, but
perceptible increase in brake pedal travel. This condition has no effect on braking performance.
Improved rear drum brake adjusters have been developed to address this condition.
© 2013 Toyota Motor Sales, USA
Page 1 of 14
@TOYOTA
Rev1
T-SB-0235-12
December 5, 2012
Page 2of14
Rear Brake Strut Improvement
Production Change Information
This bulletin applies to:
2009 - 2013 Japan built Corolla vehicles produced BEFORE the Production Change Effective
VIN shown below.
MODEL
PLANT
PRODUCTION CHANGE EFFECTIVE VIN
Corolla
All CBU
JTDBU4EE#DJ 109475
• 2009 - 2011 North American built Corolla vehicles produced BEFORE the Production Change
Effective VINs shown below.
MODEL
Corolla
PLANT
PRODUCTION CHANGE EFFECTIVE VIN
TMMC
2TIBU4EE#BC707539
TMMMS
5YFBU4EE#BP001039
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
BR1204
R & R Drum Brake Strut Kit
1.4
04943-02070
04943-52030
4B
41
APPLICABLE WARRANTY
• This repair is covered under the Toyota Comprehensive 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
04943-52030
04943-02070
04943-12040
04943-02080
PART NAME
QTY
Strut Kit, Rear Drum Brake
1
© 2013 Toyota Motor Sales, USA
@TOYOTA
T-SB-0235-12
Rev1
December 5, 2012
Page 3of14
Rear Brake Strut Improvement
Required Tools & Equipment
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
Shoe Hold Down Spring Driver
09718-00010
1
Spring Tension Tool
09921-0001 0
1
Plastic Pry Tool Set*
00002-06020-01
1
* Essential SST.
.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.
Repair Procedure
1.
Test~drive
the vehicle and confirm the condition.
2. Remove the rear wheels.
3. Remove the rear brake drums.
A. Disengage the parking brake.
B. Remove the rear drum.
NOTE
If the rear drum cannot be removed easily, complete steps 4 and 5, otherwise, continue
to step 6.
4. Remove the shoe adjusting hole plug and insert
a screwdriver through the hole into the backing
plate, and hold the automatic adjust lever away
from the adjuster.
Figure 1.
~--------------~
1
Automatic Adjust Lever
2
Compress
5. Using another screwdriver, compress the brake shoe by turning the adjusting bolt.
© 2013 Toyota Motor Sales, USA
@TOYOTA
T-SB-0235-12
Rev1
December 5, 2012
Page 4 of 14
Rear Brake Strut Improvement
Repair Procedure (Continued)
6. Remove the brake shoe (forward leading).
A. Using the SST, separate the shoe return spring Figure 2.
from the rear brake shoe.
.-------------------,
SST: 09921-00010
NOTICE
Be cautious NOT to damage the wheel
cylinder boot with the SST or the return
spring during this process.
B. Using the SST, remove the 2 shoe hold down
spring cups, shoe hold down spring, pin, and
the rear brake shoe.
SST: 09718-00010
Figure 3.
..----------------.
© 2013 Toyota Motor Sales, USA
@TOYOTA
T-SB-0235-12
Rev1
December 5, 2012
Page 5of14
Rear Brake Strut Improvement
Repair Procedure {Continued)
C. Remove the tension spring to the front brake
shoe and rear brake shoe.
Figure 4.
~-------------~
7. Remove the rear brake strut set.
A. Remove the shoe return spring from the rear
brake shoe and remove the rear brake shoe
strut set.
Figure 5.
.---------------~
B. Using needle-nose pliers, separate the parking Figure 6.
brake cable.
.------------------.
© 2013 Toyota Motor Sales, USA
@TOYOTA
T-SB-0235-12
Rev1
December 5, 2012
Page 6of14
Rear Brake Strut Improvement
Repair Procedure (Continued)
8. Remove the forward leading rear brake shoes
from the backing plate.
Figure 7.
NOTE
Since the old brake shoes are being reused,
there is no need to remove the parking brake
lever from the brake shoe.
9. Install the rear brake shoes with the NEW strut set.
A. Apply high temperature grease to the surface
of the backing plate that contacts the forward
leading brake shoe as indicated.
B. Using needle-nose pliers, install the parking
brake cable to the rear brake parking brake
shoe lever assembly.
Figure 8. High Temperature Grease Locations
Figure 9.
.-----------------...
© 2013 Toyota Motor Sales, USA
@TOYOTA
T-SB-0235-12
Rev1
December 5, 20:12
Page 7of14
Rear Brake Strut Improvement
Repair Procedure (Continued)
C. Using the SST, install the rear brake shoe, pin,
and hold down spring cup.
Figure 10.
~--------------
SST: 09718-00010
D. Apply high temperature grease to the NEW
adjustment bolt (strut set).
Figure 11.
J
1
© 2013 Toyota Motor Sales, USA
I
High Temperature Grease
@TOYOTA
T-SB-0235-12'
Rev1
December 5, 2012
Page 8of14
Rear Brake Strut Improvement
Repair Procedure (Continued)
E. Install the rear brake strut set assembly with
tension spring.
Figure 12.
~-------------~
10. Install the rear brake shoe (forward leading).
A. Using the SST, install the rear brake shoe, pin,
hold down spring, and shoe hold down spring
cup.
Figure 13.
~-------------~
SST: 09921-00010
© 2013 Toyota Motor Sales, USA
@TOYOTA
T-SB-0235-12
Rev1
December 5, 2012
Page 9 of 14
Rear Brake Strut Improvement
Repair Procedure (Continued)
B. Using needle-nose pliers, install the tension
spring to the rear brake shoe.
C. Using the SST, install the shoe return spring
to the rear brake shoe.
Figure 14.
Figure 1s.
~-------------~
SST: 09921-00010
NOTICE
Be cautious NOT to damage the wheel
cylinder boot with the SST or the return
spring during this process.
© 2013 Toyota Motor Sales, USA
@TOYOTA
T-SB-0235-12
Rev1
Page 10 of 14
December 5, 2012
Rear Brake Strut Improvement
Repair Procedure (Continued)
11. Inspect the rear brake drum.
A. Inspect that each part is installed properly as shown in the illustration.
Figure 16.
©
1
2
I
RH Side
®
3
I
Front
LH Side
NOTICE
There should be NO oil or grease on the shoes or drum.
© 2013 Toyota Motor Sales, USA
@TOYOTA
T-SB-0235-12
Rev1
December 5, 2012
Page 11 of 14
Rear Brake Strut Improvement
Repair Procedure (Continued)
B. Measure the brake drum inner diameter and
the diameter of the brake shoes. Check that
the difference between the diameters is equal
to the specified shoe clearance.
Shoe Clearance: 0.4 mm (0.0157 in.)
Figure 17.
~-------------~
C. Install the rear brake drum(s).
© 2013 Toyota Motor Sales, USA
@TOYOTA
T-SB-0235-12
Rev1
December 5, 2012
Rear Brake Strut Improvement
Repair Procedure (Continued)
12. Adjust parking brake lever travel.
A. Remove the upper console box assembly.
Figure 18.
Using a plastic pry tool, disengage the 6 clips
and 2 guides, and remove the upper console
panel sub-assembly.
B. Completely release the parking brake lever.
© 2013 Toyota Motor Sales, USA
Page 12of14
..
@TOYOTA
T-SB-0235-12
Rev1
December 5, 2012
Page 13of14
Rear Brake Strut Improvement
Repair Procedure (Continued)
C. Loosen the lock nut and the adjusting nut to
completely release the cable.
Figure 19.
1
I
Lock Nut
D. Operate the brake lever 3 to 5 times with the engine stopped.
E. Turn the adjusting nut until the parking brake lever travel is corrected to within the specified
range.
Parking Brake Lever Travel: 6 to 9 notches at 200 N*m (2040 kgf*cm, 147 ft*lbf)
F. Using a wrench or an equivalent tool, hold the adjusting nut and tighten the lock nut.
Torque: 6 N*m (61 kgf*cm, 53 in*lbf)
G. Operate the parking brake lever 3 to 4 times, and check the parking brake lever travel.
H. Check for any rear brake drag and adjust as needed.
© 2013 Toyota Motor Sales, USA
'
@TOYOTA
T-SB-0235-12
Rev1
December 5, 2012
Rear Brake Strut Improvement
Repair Procedure (Continued)
I. Install the upper console box assembly by
engaging the 6 clips and 2 guides.
·
Figure 20.
13. Install the rear wheels and torque to specification.
Torque: 103 N*m (1050 kgf'cm, 76 ft*lbf)
14. Test drive the vehicle and confirm proper brake operation and pedal feel.
© 2013 Toyota Motor Sales, USA
.
Page 14of14