A340E LATE ZIP IN

2017-11-21

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Toyota A340E/F
‘00-Later, V6 & V8 ZIP KIT ®
PART NUMBER A340-LATE-ZIP

QUICK GUIDE

Parts are labeled here in order of installation. See other side of sheet for details on Zip Kit contents.
NOTE: Type 4 EPC-style valve body
is shown. Parts will fit in the same
locations in a throttle cable-style
and Type 3 EPC-style valve body
except where noted.

installation Diagram

Type 4 Shown

*Not used on

Type 3 valve
bodies.

Upper Valve Body

1
9
10

These
checkballs
may or
may not
belong!

10
10

CAUTION! Note the location
of OE checkballs during
disassembly! Usage of
checkballs vary greatly!

2
5
2

CAUTION: If replacing an OE
sleeve with NO dot or three
dots, use Sonnax EPC valve
with flat on large spool diameter.

Flat on
large spool
diameter.

Lower
Valve Body
Type 4 Shown

If replacing an OE sleeve with two
dots, use Sonnax EPC valve with
flat on small spool diameter.

8
6

Flat on
small spool
diameter.
Discard the Sonnax EPC valve that
is not used.

• If replacing an OE sleeve
with two or three dots, do
NOT add shims.
• If replacing an OE sleeve
with no dots, add shims.
NOTE: Detailed instructions are included on page 8 of installation and testing booklet.

In addition to general rebuilding tips and technical information, the technical booklet included in this kit contains vacuum
testing and additional repair options for higher mileage units or for repairing specific complaints which are beyond the
scope of this kit.
©2017 Sonnax Industries, Inc.
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

A340-LATE-ZIP-Guide 11-20-17
Page 1

Toyota A340E/F, ‘00-Later, V6 & V8 ZIP KIT®

Quick Guide

Zip Kit Contents & Installation Steps
Step 1 R
eplace OE End Plugs
Secondary Regulator Valve,
Reverse Control Valve*
*(Type 4 Valve Body Only)

• O-Rings (4)

2 extra

Step 2 Replace OE End Plugs
1-2, 2-3 & 3-4 Shift Valves
Packaging Pocket 2

• End Plugs, Medium (3)

• O-Rings (5)

Place small reverse valve into sleeve. Place selected EPC boost
valve from step 6 into sleeve, smaller diameter first. Place cutback
boost valve into sleeve with longer stem facing outboard.
Packaging Pocket 7

Packaging Pocket 1

• End Plugs, Large (2)

Step 7 Assemble Boost Assembly

2 extra

Step 3 Replace OE End Plug
2nd Coast Modulator Valve

• Boost Sleeve
• Reverse Boost Valve
• Cutback Boost Valve

Step 8 P
ressure Regulator
Valve Shims
Look at the end of OE boost sleeve for the number of identification
dots. If replacing an OE sleeve with two or three dots, do NOT add
shim. If replacing an OE sleeve with no dots, add both shims. Shims
should be added, if used, between the OE washer and pressure regulator
valve. (See page 8 of installation and testing booklet for more details.)
Packaging Pocket 8

• Shim, .015" thick

Packaging Pocket 3

• End Plug, Small

• O-Rings (2)

• Shim, .032" thick

1 extra

Step 4 Replace OE End Plug
Accumulator Control Valve

Step 9 R
eplace OE Large
Checkballs
See checkball caution notes on page 1.

Packaging Pocket 4

Packaging Pocket 9

• End Plug, Extra Large

• Checkballs, Large .250" dia. (2)

• O-Rings (2)

1 extra

Step 5 Replace OE Lockup
Assembly

See checkball caution notes on page 1.

Packaging Pocket 5

• Valve

Step 10 R
eplace OE Small
Checkballs
Packaging Pocket 10

• Sleeve

• Checkballs, Small .218" dia. (9)

6 S
Step
elect Correct Replacement
EPC Boost Valve
Look at end of the OE boost sleeve for number of identification dots.
If replacing an OE sleeve with NO dots or three dots, use the Sonnax
EPC boost valve with flat on large spool diameter. If replacing an OE
sleeve with two dots, use the Sonnax EPC boost valve with flat on
small spool diameter. (See page 8 of Installation & Testing Booklet for
more details.)

NOTE: These items also are available separately;
Steps 1, 2, 3 & 4
Steps 6, 7 & 8

Part No. 97741-19K
Part No. 97741-01K

Packaging Pocket 6

• EPC Boost Valve
• EPC Boost Valve

Flat on Large Spool Dia. (for no/three ID dots)

The parts listed here may be protected by patent number 8,955,533.

Flat on Small Spool Dia. (for two ID dots)

A340-LATE-ZIP-Guide 11-20-17
Page 2

Toyota A340E/F
‘00-Later, V6 & V8 ZIP KIT ®
PART NUMBER A340-LATE-ZIP

Valve Body
Identification

INSTALLATION & TESTING BOOKLET

This Zip Kit A340-LATE-ZIP is designed for 2000-later, V6 & V8 applications using Type 3 (valve body
casting identification #8935) or Type 4 (valve body casting identification #8938) style valve bodies.

Type 3 (Casting ID #8935) Valve Body

Type 4 (Casting ID #8938) Valve Body

V8 applications, EPC style throttle control only.

V6 or V8 applications, EPC (shown) or throttle cable style throttle control.

Valve Body
Casting ID

SLT Solenoid

Type 3
Contour ID

Figure 1 Type 3, Upper Valve Body

Valve Body
Casting ID

Separator
Plate ID

Type 4
Contour ID

Figure 3 Type 4, Upper Valve Body

TC Control Valve

(visible here if used)

Valve Body
Casting ID

Separator
Plate ID

TC Control Valve

(visible here if used)

Pressure Regulator
Valve (visible)

S1 Shift
Solenoid

S2 Shift
Solenoid

Type 3
Contour ID

SL Shift
Solenoid

Accumulator
Piston Assembly

Pressure Relief
Check Valve

Figure 2 Type 3, Lower Valve Body
©2017 Sonnax Industries, Inc.
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com

Pressure Regulator
Valve (visible)

S1 Shift
Solenoid
Type 4
Contour ID

S2 Shift
Solenoid

SL Shift
Solenoid

Accumulator
Piston Assembly

Alternate Configuration: May have
same lineup as Type 3, Figure 2

Pressure Relief
Check Valve

Figure 4 Type 4, Lower Valve Body
A340-LATE-ZIP-Booklet 11-20-17
Page 1

Toyota A34OE/F, ‘00-Later, V6 & V8 ZIP KIT®

TIME TESTED • INDUSTRY TRUSTED

Installation & Testing Booklet

Bolt Locations & Torque Specifications
Torque
Specifications

Type 3 Valve
Body to Case Bolts

Detent Spring Bolt
89 in-lbs (10 N.m)
Oil Pan Bolt
65 in-lbs (7.3 N.m)
Solenoid-to-Valve
Body Bolt
89 in-lbs (10 N.m)

Type 4 Valve
Body to Case Bolts

Type 3 & 4 Valve Body
Disassembly Bolts

Type 3 & 4
Oil Pan Filter Bolts

Bolt Color
Code

Bolt
Length

Bolt Color
Code

Bolt
Length

Bolt Color
Code

Bolt
Length

Red

23mm

Purple

23mm

Pink

14mm

Lt. Purple

20mm

Green

28mm

White

28mm

Black

20mm

Teal

28mm

Blue

36mm

Yellow

36mm

Orange

23mm

Brown

40mm

Torque all to 8 ft-lbs

Bolt Color
Code

Torque to 7 ft-lbs

Bolt
Length

Torque to 57 in-lbs

Type 3 (Casting ID #8935) Valve Body

Type 4 (Casting ID #8938) Valve Body

V8 applications, EPC style throttle control only.

V6 or V8 applications, EPC (shown) or throttle cable style throttle control.

Figure 5

1
C

A
2

3
2

3
A
3

2
2

3
3

3
A

Figure 7

2
1

Type 4, Lower Valve Body, Case Removal - Bolt Locations

Type 3, Lower Valve Body, Case Removal - Bolt Locations

Figure 8

Figure 6
B
C

B
C

B
B

A
B

A
A

B
B

Type 3, Upper Valve Body, Valve Body Disassembly - Bolt Locations

Page 2

C
B
C

C
C

11-20-17 A340-LATE-ZIP-Booklet

B
A

C
B

C
C

B
A

B
B

A
A

Type 4, Upper Valve Body, Valve Body Disassembly - Bolt Locations

Toyota A34OE/F, ‘00-Later, V6 & V8 ZIP KIT®

Installation & Testing Booklet

Clutch & Band Application Chart
Selector
Position - Gear

Park

Reverse

Neutral

D-1st Gear

Figure 9
B1

D-2nd Gear

D-3rd Gear

D-Overdrive
2-1st Gear

2-2nd Gear

Low-1st Gear

Low-2nd Gear

ON
ON

ON
ON
ON

ON
ON

P0750

Shift Solenoid S1 (A)/S2 (B) Malfunction

P0753

Shift Solenoid S1 (A)/S2 (B) Electrical Malfunction

P0755

Shift Solenoid S1 (A)/S2 (B) Malfunction

P0758

Shift Solenoid S1 (A)/S2 (B) Electrical Malfunction

P0770

Shift Solenoid SL (E) Malfunction

P0773

Shift Solenoid SL (E) Electrical Malfunction

Selector
Position - Gear

Shift Solenoid
S1

Figure 10
Shift Solenoid
S2

D - 1st Gear

Off

D - 2nd Gear

D - 3rd Gear

Off

D - Overdrive

Off

2 - 1st Gear

Off

2 - 2nd Gear

2 - 3rd Gear

Off

Low - 1st Gear

Off

Low - 2nd Gear

Shift Strategies
ON
ON

Figure 11

Description

Shift Solenoid Chart

ON
ON

DTC

The computer (ECM) controls the ON/Off combination of the shift solenoids S1 (A) and S2 (B) to shift
between 1st gear and overdrive (O/D). If an electrical failure occurs in one of these two solenoids, the
computer continues to control the other solenoid to
allow the vehicle to operate as smoothly as possible
while in Fail Safe mode. The ECM also turns off the
SL (E) solenoid during Fail Safe. Should both solenoids
S1 (A) and S2 (B) fail, shifting must be done manually.
Figures 11 and 12 give typical solenoid codes and solenoid malfunctioning shift strategies.
Figure 14

Solenoid Malfunctioning Shift Strategies
Shift Solenoid S1 (A)
Malfunctioning

Solenoid Diagnostic Trouble Chart

Selector
Position Normal Gear

TIME TESTED • INDUSTRY TRUSTED

Figure 12

Shift Solenoid S2 (B)
Malfunctioning

Both Solenoids
Malfunctioning
Gear

S1
(A)

S2
(B)

Gear

S1
(A)

S2
(B)

Gear

When selector position
in manually operated

D-1st Gear

3rd

1st

Overdrive

D-2nd Gear

3rd

Off

O/D

Overdrive

D-3rd Gear

3rd

Off

O/D

Overdrive

D-Overdrive

Off

O/D

Off

O/D

Overdrive

2-1st Gear

3rd

1st

3rd

2-2nd Gear

3rd

Off

3rd

2-2nd Gear

3rd

Off

3rd

Low-1st Gear

Off

1st

Low-2nd Gear

2nd

1st

Figure 13

To test shift solenoids S1 (A), S2 (B) or SL (E) for
sticking, force 71 psi of compressed air into the snout
(Figure 13, arrow); it should not leak. Energizing the
solenoids should cause them to open and allow air
flow. Resistance on these three shift solenoids should be
11–15 ohm at 68˚F, and resistance on the SLT solenoid
should be 5.0–5.6 ohm at 68˚F.
Some valve bodies have an accumulator piston assembly (Figure 14) that can be mistaken for a solenoid. This
is actually an accumulator for lockup and should be
checked to ensure the piston can move freely.

A340-LATE-ZIP-Booklet 11-20-17
Page 3

Toyota A34OE/F, ‘00-Later, V6 & V8 ZIP KIT®

TIME TESTED • INDUSTRY TRUSTED

Installation & Testing Booklet

Critical Wear Areas & Vacuum Test Locations
NOTE: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Test locations are pointed to with an arrow.
Springs are not shown for visual clarity. Low vacuum reading indicates wear and Sonnax parts noted for replacement.

Upper Valve Body • Type 3, EPC Style Shown Here


12



1. Primary Regulator Valve
• Delayed Shifts
• Poor Shift Quality
• Burnt clutches & brakes
• Delayed engagements

Replace with Sonnax Part No.
97741-06K EPC valve spool .426” dia.; replaces OE
2-dot boost sleeve
97741-10K EPC valve spool .353” dia.; replaces OE
3-dot or no-dot boost sleeve
97741-06K & 97741-10K: Requires F-97741-TL6 & VB-FIX

2. Boost Assembly
• Delayed Forward/Reverse engagement
• Soft shifts
• No kickdown
• Burnt clutches & brakes
Replace with Sonnax Part No.
97741-01K*



 11
5

3. TCC Control Valve &
Plunger Assembly
• Loss of lockup
• Converter slips/shudder/codes

Lower Valve Body • Type 3, EPC Style Shown Here

 13

4. Secondary Regulator Valve
• TCC complaints
• Lockup codes
• Loss of lube
• Burnt clutches & brakes
Replace with Sonnax Part No.
97741-18K Requires F-39741-TL18 & VB-FIX

5. Lockup Relay Valve
& Plunger Assembly
Lockup complaints/codes
Replace with Sonnax Part No.
77741-02K*
Lockup Relay Control Valve Kit
97741-20K
Oversized Lockup Relay Valve Kit
97741-20K: Requires F-97741-TL20 & VB-FIX


2

6. Secondary Modulator Valve
7

• Shift complaints
• Solenoid codes

*Part numbers with an asterisk (*) are included in this Zip Kit.
11-20-17 A340-LATE-ZIP-Booklet
Page 4

Toyota A34OE/F, ‘00-Later, V6 & V8 ZIP KIT®

Installation & Testing Booklet

TIME TESTED • INDUSTRY TRUSTED

0
30
VACUUM
TEST

For specific vacuum test information, refer to individual part instructions included in kits and available at www.sonnax.com.

Upper Valve Body • Type 4, EPC Style Shown Here

7. Accumulator Control Valve
• Shift complaints
• Solenoid codes
• Loss of throttle/line pressure

 12



8. Cutback Valve
• No kickdown
• Loss of throttle pressure

9. L
ow Coast
Modulator Valve
• Burnt 1st/Reverse brake (B3)
• Loss of manual low

10. 2
nd Coast Modulator
Valve
• Burnt 2nd brake (B2)
• Loss of manual second



11
5

11. 3–4 Shift Valve

Lower Valve Body • Type 4, EPC Style Shown Here

3–4 Shift complaints



12. 2–3 Shift Valve

2–3 Shift complaints

13. 1–2 Shift Valve
1–2 Shift complaints

14. Reverse Control Valve
• Delayed Reverse
• No Reverse

15. End Plugs
• Slips & flared shifts
• Soft shifts
• Low line pressure
Replace with Sonnax Part No.
97741-19K*
NOTE: Several Locations =



7

A340-LATE-ZIP-Booklet 11-20-17
Page 5

Toyota A34OE/F, ‘00-Later, V6 & V8 ZIP KIT®

TIME TESTED • INDUSTRY TRUSTED

Installation & Testing Booklet

OE Exploded View
Upper & Lower Valve Body • Type 3, EPC Style Shown Here
NOTE: Depending upon vehicle application, the OE springs shown may not be present.

Upper Valve Body - Type 3

101

Checkball Cautions
& Notes
• Care should be taken
during disassembly. Note location of
checkballs as usage varies greatly!

106

• When determining when a
checkball is required, the circuit
orifice in the separator plate over
that location will be about .090"
dia. When no ball is required, the
orifice will be about .150" dia.
• All checkballs are .218" dia. except
where noted (.250" dia.).

.250" dia.

102

105
103
.090" dia.
Orifice

Upper Valve Body Descriptions

I.D. No.

Description

101

Lockup Relay Valve
& Plunger Assembly

102

3–4 Shift Valve

103

2nd Coast Modulator Valve

104

Low Coast Modulator Valve

105

2–3 Shift Valve

106

Secondary Regulator Valve

104

Lower Valve Body - Type 3

Separator
Plate
.150" dia.
Orifice

207

201

Lower Valve Body Descriptions

I.D. No.

Description

201

Accumulator Control Valve

202

Secondary Modulator Valve

203

Cutback Valve

204

Primary Regulator Valve
& Boost Assembly

205

Converter Limit Valve

206

Manual Valve

207

1–2 Shift Valve

11-20-17 A340-LATE-ZIP-Booklet
Page 6

202
203

204
206

205

NOTE: Filters should be installed into the separator
plate during assembly. The open end of the filter
snaps into the plate opening.

Toyota A34OE/F, ‘00-Later, V6 & V8 ZIP KIT®

Installation & Testing Booklet

TIME TESTED • INDUSTRY TRUSTED

Upper & Lower Valve Body • Type 4, EPC Style Shown Here
NOTES: Depending upon vehicle application, the OE springs shown may not be present. Slight wormtrack difference and valve components will vary in
throttle cable style valve bodies.

101

Upper Valve Body - Type 4

Upper Valve Body Descriptions

108

I.D. No.

.250" dia.

102

107
103
106
105*

Description

101

Lockup Relay Valve
& Plunger Assembly

102

3–4 Shift Valve

103

2nd Coast Modulator Valve

104*

Check Valve

105*

Check Valve

106

Reverse Control Valve

107

2–3 Shift Valve

108

Secondary Regulator Valve

*Not in throttle cable style.

104*

.090" dia.
Orifice
Please review
Checkball
Cautions & Notes as well
as Filter Note on page 6 as
they apply to both Type 3
& Type 4 valve bodies.

.150" dia.
Orifice

Separator
Plate
Lower Valve Body - Type 4

Lower Valve Body Descriptions

I.D. No.

Large Filter
209
208

201

Accumulator Control Valve

202

Secondary Modulator Valve

203

Cutback Valve

204**
201
Teardrop
Filter

202
203

204**

Small Filter

207

Description

TCC Control Valve
& Plunger Assembly

205

Primary Regulator Valve
& Boost Assembly

206

Converter Limit Valve

207

Manual Valve

208

1–2 Shift Valve

209

Low Coast Modulator Valve

**Not in all applications

205

A340-LATE-ZIP-Booklet 11-20-17
Page 7

Toyota A34OE/F, ‘00-Later, V6 & V8 ZIP KIT®

TIME TESTED • INDUSTRY TRUSTED

Detailed Instructions for Steps 6 to

Installation & Testing Booklet

from Quick Guide

For Replacing a No–Dot OE Boost Valve Assembly
Add 2 Sonnax
Shims Under OE
Washer

Figure 15

Choose Sonnax
EPC Boost Valve
with Flat on Large
Diameter

Primary Regulator
Valve & Boost
Assembly Bore

For Replacing a 2–Dot OE Boost Valve Assembly

Figure 16

Do NOT add
Sonnax Shims
Here
Choose Sonnax
EPC Boost Valve
with Flat on Small
Diameter

Primary Regulator
Valve & Boost
Assembly Bore

For Replacing a 3–Dot OE Boost Valve Assembly
Do NOT add
Sonnax Shims
Here

Figure 17

Choose Sonnax
EPC Boost Valve
with Flat on Large
Diameter

Primary Regulator
Valve & Boost
Assembly Bore

11-20-17 A340-LATE-ZIP-Booklet
Page 8

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