Operation CHARM: Car repair manuals for everyone.
Home >> Saturn >> 2008 >> Aura V6-3.5L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Description and Operation >> 4T45-E Automatic Transaxle >> Fluid Passages

Fluid Passages



Fluid Passages

Oil Pump Base Fluid Passages - Control Valve Body Side

Oil Pump Base Fluid Passages (Control Valve Body Side):




1 - Suction
1 - Suction
1 - Suction
2 - Line
2 - Line
2 - Line
2 - Line
3 - Decrease
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void

Control Valve Body Fluid Passages - Oil Pump Base Side

Control Valve Body Fluid Passages (Oil Pump Base Side):




1 - Suction
1 - Suction
1 - Suction
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
3 - Decrease
6 - Release
13 - PRND4
25 - Reverse
28 - Drive
41 - D21
44 - Lo
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void

Control Valve Body Fluid Passages - Channel Plate Side




1 - Suction
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
3 - Decrease
3 - Decrease
4 - Converter Feed
4 - Converter Feed
4 - Converter Feed
6 - Release
6 - Release
6 - Release
7 - Apply
8 - Cooler
8 - Cooler
10 - Lube 2
10 - Lube 2
10 - Lube 2
10 - Lube 2
11 - PRN
12 - Lo/PRN
12 - Lo/PRN
13 - PRND4
14 - Actuator Feed
14 - Actuator Feed
14 - Actuator Feed
14 - Actuator Feed
14 - Actuator Feed
15 - Filtered Actuator Feed
15 - Filtered Actuator Feed
16 - 1-2 Signal
16 - 1-2 Signal
16 - 1-2 Signal
17 - 2-3 Signal
17 - 2-3 Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
19 - VBS Signal
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
21 - 1-2 Accumulator Feed
22 - 3-4 Accumulator
24 - 2-3 Accumulator Feed
25 - Reverse
25 - Reverse
25 - Reverse
25 - Reverse
25 - Reverse
25 - Reverse
27 - Lo Band
27 - Lo Band
27 - Lo Band
27 - Lo Band
28 - Drive
28 - Drive
28 - Drive
28 - Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
31 - Filtered 2-3 Drive
32 - 2nd Clutch
32 - 2nd Clutch
32 - 2nd Clutch
33 - TCC Signal (PWM)
33 - TCC Signal (PWM)
33 - TCC Signal (PWM)
34 - TCC Regulated Apply
34 - TCC Regulated Apply
34 - TCC Regulated Apply
35 - 3-4 Drive
35 - 3-4 Drive
35 - 3-4 Drive
35 - 3-4 Drive
37 - Direct Clutch
38 - 4th Band
38 - 4th Band
38 - 4th Band
39 - D321
39 - D321
39 - D321
39 - D321
40 - Coast Clutch
40 - Coast Clutch
40 - Coast Clutch
41 - D21
42 - Intermediate Band Feed
42 - Intermediate Band Feed
42 - Intermediate Band Feed
42 - Intermediate Band Feed
42 - Intermediate Band Feed
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
44 - Lo
44 - Lo
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
46 - Orificed Exhaust
46 - Orificed Exhaust
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void

Spacer Plate with Bonded Gaskets - With Electronic Range Select Mode

Spacer Plate - With Electronic Range Select Mode:




1 - Suction
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
3 - Decrease
4 - Converter Feed
4 - Converter Feed
5 - TCC Feed Limit
5 - TCC Feed Limit
6 - Release
6 - Release
6 - Release
7 - Apply
8 - Cooler
10 - Lube 2
10 - Lube 2
10 - Lube 2
11 - PRN
12 - Lo/PRN
13 - PRND4
13 - PRND4
14 - Actuator Feed
14 - Actuator Feed
14 - Actuator Feed
14 - Actuator Feed
15 - Filtered Actuator Feed
16 - 1-2 Signal
17 - 2-3 Signal
17 - 2-3 Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
21 - 1-2 Accumulator Feed
22 - 3-4 Accumulator Feed
23 - 2-3 Accumulator
24 - 2-3 Accumulator Feed
25 - Reverse
25 - Reverse
25 - Reverse
26 - Reverse Clutch
27 - Lo Band
27 - Lo Band
27 - Lo Band
28 - Drive
29 - Forward Clutch
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
32 - 2nd Clutch
32 - 2nd Clutch
33 - TCC Signal (PWM)
33 - TCC Signal (PWM)
34 - TCC Regulated Apply
34 - TCC Regulated Apply
35 - 3-4 Drive
35 - 3-4 Drive
36 - Direct Clutch Feed
37 - Direct Clutch
38 - 4th Band
38 - 4th Band
39 - D321
39 - D321
39 - D321
39 - D321
39 - D321
39 - D321
40 - Coast Clutch
41 - D21
42 - Intermediate Band Feed
42 - Intermediate Band Feed
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
44 - Lo
44 - Lo
44 - Lo
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
46 - Orificed Exhaust
47 - Void
47 - Void
47 - Void

Spacer Plate with Bonded Gaskets - L4 Hybrid




1 - Suction
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
3 - Decrease
4 - Converter Feed
4 - Converter Feed
5 - TCC Feed Limit
5 - TCC Feed Limit
6 - Release
6 - Release
6 - Release
7 - Apply
8 - Cooler
10 - Lube 2
10 - Lube 2
10 - Lube 2
11 - PRN
12 - Lo/PRN
12 - Lo/PRN
13 - PRND4
13 - PRND4
14 - Actuator Feed
14 - Actuator Feed
14 - Actuator Feed
14 - Actuator Feed
15 - Filtered Actuator Feed
15 - Filtered Actuator Feed
17 - 2-3 Signal
17 - 2-3 Signal
17 - 2-3 Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
21 - 1-2 Accumulator Feed
22 - 3-4 Accumulator Feed
23 - 2-3 Accumulator
23 - 2-3 Accumulator
23 - 2-3 Accumulator
24 - 2-3 Accumulator Feed
25 - Reverse
25 - Reverse
25 - Reverse
25 - Reverse
26 - Reverse Clutch
27 - Lo Band
27 - Lo Band
27 - Lo Band
28 - Drive
29 - Forward Clutch
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
32 - 2nd Clutch
32 - 2nd Clutch
33 - TCC Signal (PWM)
33 - TCC Signal (PWM)
34 - TCC Regulated Apply
34 - TCC Regulated Apply
35 - 3-4 Drive
35 - 3-4 Drive
35 - 3-4 Drive
36 - Direct Clutch Feed
37 - Direct Clutch
38 - 4th Band
38 - 4th Band
39 - D321
39 - D321
39 - D321
39 - D321
39 - D321
39 - D321
40 - Coast Clutch
41 - D21
41 - D21
42 - Intermediate Band Feed
42 - Intermediate Band Feed
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
44 - Lo
44 - Lo
44 - Lo
44 - Lo
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
46 - Orificed Exhaust
46 - Orificed Exhaust
47 - Void
47 - Void

Channel Plate Fluid Passages - Control Valve Body Side




1 - Suction
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
2 - Line
3 - Decrease
4 - Converter Feed
4 - Converter Feed
5 - TCC Feed Limit
5 - TCC Feed Limit
6 - Release
6 - Release
6 - Release
7 - Apply
7 - Apply
7 - Apply
7 - Apply
8 - Cooler
8 - Cooler
9 - Lube 1
9 - Lube 1
9 - Lube 1
9 - Lube 1
9 - Lube 1
10 - Lube 2
10 - Lube 2
11 - PRN
11 - PRN
11 - PRN
11 - PRN
12 - Lo/PRN
13 - PRND4
13 - PRND4
14 - Actuator Feed
14 - Actuator Feed
14 - Actuator Feed
14 - Actuator Feed
17 - 2-3 Signal
17 - 2-3 Signal
18 - Torque Signal
18 - Torque Signal
18 - Torque Signal
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
20 - 1-2/3-4 Accumulator
21 - 1-2 Accumulator Feed
22 - 3-4 Accumulator Feed
23 - 2-3 Accumulator
24 - 2-3 Accumulator Feed
25 - Reverse
25 - Reverse
25 - Reverse
25 - Reverse
25 - Reverse
25 - Reverse
27 - Lo Band
27 - Lo Band
27 - Lo Band
27 - Lo Band
28 - Drive
28 - Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
30 - 2-3 Drive
32 - 2nd Clutch
32 - 2nd Clutch
32 - 2nd Clutch
32 - 2nd Clutch
33 - TCC Signal (PWM)
34 - TCC Regulated Apply
35 - 3-4 Drive
36 - Direct Clutch Feed
36 - Direct Clutch Feed
37 - Direct Clutch
37 - Direct Clutch
38 - 4th Band
38 - 4th Band
39 - D321
39 - D321
39 - D321
40 - Coast Clutch
40 - Coast Clutch
41 - D21
41 - D21
42 - Intermediate Band Feed
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
43 - Intermediate Band
44 - Lo
44 - Lo
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
46 - Orificed Exhaust
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
47 - Void
#1 - Ball Check Valve
#2 - Ball Check Valve
#3 - Ball Check Valve
#4 - Ball Check Valve
#5 - Ball Check Valve
#6 - Ball Check Valve
#7 - Ball Check Valve

Channel Plate Fluid Passages - Case Side

Channel Plate Fluid Passages (Case Side):




1 - Suction
1 - Suction
2 - Line
3 - Decrease
8 - Cooler
9 - Lube 1
9 - Lube 1
9 - Lube 1
10 - Lube 2
21 - 1-2 Accumulator Feed
22 - 3-4 Accumulator Feed
24 - 2-3 Accumulator Feed
25 - Reverse
25 - Reverse
27 - Lo Band
28 - Drive
32 - 2nd Clutch
32 - 2nd Clutch
36 - Direct Clutch Feed
37 - Direct Clutch
38 - 4th Band
38 - 4th Band
40 - Coast Clutch
43 - Intermediate Band
45 - Exhaust
45 - Exhaust
45 - Exhaust
45 - Exhaust
47 - Void
47 - Void
47 - Void

Channel Plate to Case Gasket

Channel Plate to Case Gasket:




1 - Suction
1 - Suction
2 - Line
8 - Cooler
9 - Lube 1
10 - Lube 2
10 - Lube 2
24 - 2-3 Accumulator Feed
24 - 2-3 Accumulator Feed
25 - Reverse
25 - Reverse
27 - Lo Band
27 - Lo Band
28 - Drive
28 - Drive
32 - 2nd Clutch
38 - 4th Band
38 - 4th Band
38 - 4th Band
43 - Intermediate Band
43 - Intermediate Band
45 - Exhaust
47 - Void
47 - Void
47 - Void

Case and Driven Sprocket Support Fluid Passages - Channel Plate Side

Case and Driven Sprocket Support Fluid Passages (Channel Plate Side):




1 - Suction
1 - Suction
1 - Suction
2 - Line
8 - Cooler
8 - Cooler
9 - Lube 1
9 - Lube 1
9 - Lube 1
9 - Lube 1
9 - Lube 1
9 - Lube 1
10 - Lube 2
10 - Lube 2
24 - 2-3 Accumulator Feed
24 - 2-3 Accumulator Feed
25 - Reverse
25 - Reverse
26 - Reverse Clutch
26 - Reverse Clutch
27 - Lo Band
27 - Lo Band
28 - Drive
28 - Drive
32 - 2nd Clutch
32 - 2nd Clutch
37 - Direct Clutch
37 - Direct Clutch
38 - 4th Band
38 - 4th Band
38 - 4th Band
38 - 4th Band
40 - Coast Clutch
40 - Coast Clutch
43 - Intermediate Band
43 - Intermediate Band
45 - Exhaust
47 - Void
47 - Void
48 - Oil Level Control
48 - Oil Level Control

Case Fluid Passages - Bottom

Case Fluid Passages (Bottom):




1 - Suction
10 - Lube 2
10 - Lube 2
25 - Reverse
25 - Reverse
27 - Lo Band
27 - Lo Band
29 - Forward Clutch
29 - Forward Clutch
38 - 4th Band
43 - Intermediate Band
47 - Void
47 - Void
47 - Void
48 - Oil Level Control
48 - Oil Level Control
pro multis · About Operation CHARM