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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Automatic Transmission - 8L90 (M5U) - Description And Operation) >> Description And Operation >> Fluid Passages >> Control Valve Solenoid Body - Control Valve Upper Body Side

Control Valve Solenoid Body - Control Valve Upper Body Side

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Control Valve Solenoid Body Fluid Passages - Control Valve Upper Body Side
GM3998267Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
2 Line
3 Secondary Line
5 Converter Feed
6 Converter Feed Limit
7 Release
8 Apply
11 From Cooler/Lube Override
12 Regulated Lube
13 Exhaust Backfill
14 Actuator Feed
15 Converter Flow
16 S6 VFS Signal (PCS Line)
17 S1 VFS Signal
18 1278R Clutch
19 1278R Clutch Feedback
20 S2 VFS Signal
22 12345R Clutch Feedback
21 12345R Clutch
23 Reverse
24 23468 Clutch/Reverse
25 S5 VFS Signal
26 45678R Clutch Feed
27 45678R Clutch Drive Feed
28 45678R Clutch
29 45678R Clutch Feedback
30 45678R Clutch/23468 Clutch
31 S9 ON/OFF Boost Signal
32 12345 Clutch Knockdown
33 Drive
34 S3 VFS Signal
35 13567 Clutch Feed
36 13567 Clutch
37 13567 Clutch Feedback
38 S4 VFS Signal
39 23468 Clutch
40 23468 Clutch Feedback
41 12345R Clutch Exhaust
42 S8 ON/OFF Signal
43 Default Latch
44 Default Latch/S9 ON/OFF Signal
45 TCC PTS Enable
46 S7 VFS Signal
47 TCC Apply
48 TCC Apply Feedback
49 Lube Override
50 Exhaust
53 Void
54 Auxiliary Fluid Signal