LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 2076 (Wiring Systems And Power Management - Component Connector End Views Part 4) >> Transmission Control Module (TCM) (M30)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Transmission Control Module (TCM) (M30)

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Transmission Control Module (TCM) (M30) Connector End View
GM1544228Courtesy of GENERAL MOTORS CORP.
Transmission Control Module (TCM) (M30)

Pin Wire Circuit Function
1 0.5 BN 418 TCC PWM Solenoid Valve Control
2 0.5 L-GN 1222 Shift Solenoid 1 Valve Control
3 0.35 OG 1983 Transmission Turbine Speed Signal
4 - - Not Used
5 0.5 OG/BK 6399 Replicated TOS Signal
6 0.5 TN 2501 High Speed GMLAN Serial Data Bus-
7 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus+
8-10 - - Not Used
11 0.35 D-BU 5985 Accessory Wakeup serial Data
12-14 - - Not Used
15 - - Not Used
16 0.5 L-GN/BK 822 VSS Low Signal
17 0.5 L-BU/WH 1229 PC Solenoid Valve Low Control (Solenoid A)
18-19 - - Not Used
20 0.5 YE 1223 Shift Solenoid 2 Valve Control
21-22 - - Not Used
23 0.35 GY 773 Transmission Range Switch Signal A
24 - - Not Used
25 0.5 TN/BK 422 TCC Solenoid Valve Control
26-28 - - Not Used
29 0.35 TN/WH 771 Transmission Range Switch Signal A
30 0.35 TN 2762 Low Reference
31 0.5 PK/WH 2139 Ignition 1 Voltage
32 0.5 RD/WH 1840 Battery Positive Voltage
33-34 - - Not Used
35 0.35 YE/BK 1227 TFT Sensor Signal
36 - - Not Used
37 0.5 TN 2501 High Speed GMLAN Serial Data Bus-
38 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus-
39 0.35 WH 776 Transmission Range Switch Signal P
40 0.5 OG/BK 1228 PC Solenoid Valve High Control
41 0.5 PU/WH 821 VSS High Signal
42 0.5 L-BU/WH 9611 Brake Switch Signal
43-44 - - Not Used
45 0.35 L-BU 1984 Transmission Turbine Speed Switch Low Reference
46 0.35 YE 772 Transmission Range Switch Signal B
47-48 - - Not Used
49 0.8 BK/WH 451 Ground
Connector Part Information 
  • OEM: 15463921
  • Service: 88987979
  • Description: 49-Way F GT 280 Micro-Pack 64 Series Sealed (BK)

Terminal Part Information 
  • Pins: 1-3, 5-7,11, 14, 16-17, 20, 23,25, 29-32, 35, 37-42, 45,46
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
  • Pin: 49
  • Terminal/Tray: 19491972/24
  • Core/Insulation Crimp: E/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
scientia non olet · About LEMON Manuals