Toyota/Lexus A750E/F, A760E/F/H, A750E-A761E-ZIP
A761E, A906E/F, AB60E/F Zip Kit® Available.
Critical Wear Areas & Vacuum Test Locations 20
25
30
15
0
10
5
NOTE: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Test locations are pointed VACUUM
TEST
to with an arrow. Springs are not shown for visual clarity. Low vacuum reading indicates wear and Sonnax parts noted for replacement.
For specific vacuum test information, refer to individual part instructions included in kits and available at www.sonnax.com.
A750 Series • Lower Valve Body
1
Block valve outboard with 22 7
.218" dia. checkball.
10
16
15
2
11 21
Upper Valve Body
Block valve outboard with Seal port See page 3 for test
Test
.218" dia. checkball. on back. 15 5 area IDs, transmission
18 23 together. symptoms and
recommended repairs.
Seal port
17 12
on back.
24
Block valve outboard with 8
.218" dia. checkball. 15 19 3
Seal port 15
on back.
Upper Valve Body No. 2
Inset: View of reverse
25 side of upper valve
9 body. Similar location
on A760 series.
©2018 Sonnax Transmission Company, Inc. • A Marmon / Berkshire Hathaway Company A750-A761E_VacTestLocations 06-12-18
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com Page 1
Toyota/Lexus A750E/F, A760E/F/H, A750E-A761E-ZIP
A761E, A906E/F, AB60E/F Zip Kit® Available.
Critical Wear Areas & Vacuum Test Locations 20
25
15
10
5
NOTE: OE valves are shown in rest position and should be tested in rest position unless otherwise indicated. Test locations are pointed 30
VACUUM
0
to with an arrow. Springs are not shown for visual clarity. Low vacuum reading indicates wear and Sonnax parts noted for replacement. TEST
For specific vacuum test information, refer to individual part instructions included in kits and available at www.sonnax.com.
A760 Series • Lower Valve Body
Block valve inboard with
.218" dia. checkball. 20
16
14 2
Upper Valve Body
See page 3 for test
Seal port
22 17 14 21 Test together. area IDs, transmission
on back. 5 symptoms and
18 14 recommended repairs.
19
13 8
Seal port 14 7 Seal port
on back. on back. 14 3 14
Lower Valve Body No. 2 Upper Valve Body No. 2
12 11
24
6 26
10 21 14
©2018 Sonnax Transmission Company, Inc. • A Marmon / Berkshire Hathaway Company A750-A761E_VacTestLocations 06-12-18
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com Page 2
Toyota/Lexus A750E/F, A760E/F/H, A750E-A761E-ZIP
A761E, A906E/F, AB60E/F Zip Kit® Available.
Click on Sonnax part numbers to see more information.
1. Primary Regulator Valve 6. Solenoid Modulator Valve 11. A
ccumulator Control
• Clutch failure • Solenoid performance codes Plunger Valve & Sleeve
• Soft/Harsh shifts • Bang shifts • Harsh shifts
• Low/High line pressure • TCC cycling • Shift codes
• High line pressure in Reverse • Shift concerns • Shift concerns
• Low line rise • Bind-up Replace with Sonnax Part No.
• Low converter pressure • Low control pressure 147741-43K
• Overheating • TCC slip
Replace with Sonnax Part No. • Low cooler flow
147741-04K Requires F-147741-TL4 & VB-FIX Replace with Sonnax Part No. 12. Brake Control Valve
147741-05K Requires F-147741-TL5 & VB-FIX • Burnt clutches
• Harsh shifts
• Flare shifts
2. Boost Assembly • Shift concerns
• Clutch failure
7. Clutch Control Valve
Replace with Sonnax Part No.
• Soft/Harsh shifts • Gear ratio codes 147741-28K Requires F-147741-TL28 & VB-FIX
• High line pressure in Reverse • Solenoid performance codes
• Low line rise in Drive • Harsh upshifts/downshifts
• High/Low line pressure • Flare shifts 13. B
2 Accumulator
• Overheating Replace with Sonnax Part No. Pistons
• Low converter pressure 147741-22K A750 Series • 5-6 Harsh/Slip
Replace with Sonnax Part No. 147741-14K A760 Series • 32- Harsh
Requires F-147741-TL22 or F-147741-TL14 & VB-FIX
147741-01K • No engine braking in D2
Replace with Sonnax Part No.147741-13
8. Lockup Control Valve
3. Lockup Relay Valve 14. & 15. End Plugs
• TCC apply & release concerns
• TCC apply & release concerns • Various complaints depending on
• Harsh downshifts
• TCC apply codes locations of leaking end plug
• TCC codes
• Burnt converter • Pressure loss
• RPM surge on coast
• Shudder 14. Replace with Sonnax Part No. 147741-30K
• Overheated fluid
• Overheating 15. Replace with Sonnax Part No. 147741-31K
Replace with Sonnax Part No.
• Lube failures
147741-16K Requires F-147741-TL16 & VB-FIX
Replace with Sonnax Part No.
147741-07K Requires F-147741-TL7 & VB-FIX 16. SLT Damper
• Harsh/Soft shifts
9. L
ockup Control Plunger • Loss of pressure control
Valve & Sleeve
4. Secondary Regulator Valve • Harsh downshifts
• Harsh lockup • TCC apply & release concerns
17. 1-2 Shift Valve
• TCC apply & release concerns • TCC codes 18. 2-3 Shift Valve
• burnt converter • Cycling TCC RPM 19. 3-4 Shift Valve
• Lube failures • Overheated fluid
Replace with Sonnax Part No. 20. 4-5 Shift Valve
Replace with Sonnax Part No.
147741-10K Requires F-147741-TL4 & VB-FIX 147741-37K 21. Clutch Apply Control Valve
22. Sequence Valve
23. Clutch Lock Valve
5. B1 Accumulator Piston 10. Accumulator 24. B1 Apply Control Valve
• Delayed engagement Control Valve & Assembly
• Flare shifts • Harsh shifts
• Forward slip • Shift codes
25. Coast Brake Relay Valve
• Burnt clutches • Shift concerns 26. C3 Apply Relay Valve
Replace with Sonnax Part No. Replace with Sonnax Part No. • Related shift concerns
57917E-19K 147741-24K Requires 147741-TL24 • Burnt clutches/brakes
©2018 Sonnax Transmission Company, Inc. • A Marmon / Berkshire Hathaway Company A750-A761E_VacTestLocations 06-12-18
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com Page 3
Toyota/Lexus A750E/F, A760E/F/H, A750E-A761E-ZIP
A761E, A906E/F, AB60E/F Zip Kit® Available.
OE Exploded View
A750 Valve Body NOTE: Depending upon vehicle application, the OE springs shown may not be present.
Filter
Upper
Valve Body
No. 2
101
301
Lower
Valve Body
Check
Valve A750 Series Valve Body Descriptions
102
104 I.D. No. Description
107
101 Manual Valve
102 SLT Damper
Primary Regulator Valve (inboard)
103
Boost Assembly (outboard)
105
106 104 Clutch Control Valve
105 Clutch Apply Control Valve
Accumulator Control Valve (inboard)
103 106 Accumulator Control Plunger Valve
201
202 & Sleeve (outboard)
Upper 107 Sequence Valve
Valve Body
201 Solenoid Modulator Valve
202 Clutch Lock Valve
203 B1 Accumulator Piston
204 Secondary Regulator Valve
203 205 Lockup Relay Valve
Lockup Control Valve (inboard)
206 Lockup Control Plunger Valve
& Sleeve (outboard)
207 C3 Check Valve
208 3-4 Shift Valve
209 Brake Control Valve
210 2-3 Shift Valve
207
211 1-2 Shift Valve
209 B1 Apply Control Valve (inboard)
212 B1 Apply Control Plunger Valve &
206 Sleeve (outboard)
208
211 210 205 204 301 Coast Brake Relay Valve
212
©2018 Sonnax Transmission Company, Inc. • A Marmon / Berkshire Hathaway Company A750-A761E_VacTestLocations 06-12-18
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com Page 4
Toyota/Lexus A750E/F, A760E/F/H, A750E-A761E-ZIP
A761E, A906E/F, AB60E/F Zip Kit® Available.
OE Exploded View
A760 Valve Body NOTE: Depending upon vehicle application, the OE springs shown may not be present.
302 304
Upper
301 Upper
303 Valve Body Valve Body
No. 2
401
305
A760 Series Valve Body Descriptions
I.D. No. Description
101 Brake Control Valve
Accumulator Control Valve (inboard)
102 Accumulator Control Plunger Valve
& Sleeve (outboard)
311 309 103 SL1 Relay Valve
308
104 B1 Apply Relay Valve
314 105 Solenoid Modulator Valve
307 306
313 312 201 Manual Valve
202 SLT Damper
310 Filter
Primary Regulator Valve (inboard)
201 203
Boost Valve Assembly (outboard)
204 4-5 Shift Valve
Lower 301 B2 Accumulator Piston
Valve Body
302 Reverse Sequence Valve
303 Clutch Control Valve
304 Clutch Apply Relay Valve
305 B1 Accumulator Piston
102 Check 306 Secondary Regulator Valve
103 Valve 307 Lockup Relay Valve
Lockup Control Valve (inboard)
202 308 Lockup Control Plunger Valve
104 & Sleeve (outboard)
204
101 309 C3 Check Valve
Lower 310 1-2 Shift Valve
Valve Body 311 B4 Check Valve
No. 2
203 312 2-3 Shift Valve
105 313 3-4 Shift Valve
314 B2 Accumulator Piston
401 C3 Apply Relay Valve
©2018 Sonnax Transmission Company, Inc. • A Marmon / Berkshire Hathaway Company A750-A761E_VacTestLocations 06-12-18
800-843-2600 • 802-463-9722 • F: 802-463-4059 • www.sonnax.com Page 5
