LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2010 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (Wiring Systems And Power Management - Component Connector End Views) >> Component Connector End Views >> Transmission Control Module (TCM) (M30)
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Transmission Control Module (TCM) (M30)

WARNING: This page is about a different car, the 2010 GMC Canyon and 2010 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Transmission Control Module (TCM) (M30)
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 1-2 Shift Solenoid Valve Control
3 0.35 RD/BK 1230 Input Speed Sensor (ISS) High Signal
4-5 - - Not Available
6 0.5 TN 2501 GM High Speed LAN Serial Data -
7 0.5 TN/WH 2500 GM High Speed LAN Serial Data +
8-10 - - Not Available
11 0.5 BN 4 Ignition Voltage
12-15 - - Not Available
16 0.5 L-GN/BK 822 VSS Low Signal
17 0.5 L-BU/WH 1229 PC Solenoid Valve Low Control
18-19 - - Not Available
20 0.5 YE/BK 1223 2-3 Shift Solenoid Valve Control
21-22 - - Not Available
23 0.5 GY 773 Transmission Range Switch Signal C (LH9)
0.35 GY 773 Transmission Range Switch Signal C (LLR or LLV)
24 - - Not Available
25 0.5 TN/BK 422 TCC Solenoid Valve Control
26-28 - - Not Available
29 0.5 BK/WH 771 Transmission Range Switch Signal A (LH9)
0.35 BK/WH 771 Transmission Range Switch Signal A (LLR or LLV)
30 0.5 BK 452 Low Reference
31 0.35 PK 139 Ignition Voltage
32 0.5 OG 440 Battery Positive Voltage
33-34 - - Not Available
35 0.5 YE/BK 1227 TFT Sensor Signal
36 - - Not Available
37 0.5 TN 2501 GM High Speed LAN Serial Data -
38 0.5 TN/WH 2500 GM High Speed LAN Serial Data +
39 0.5 WH 776 Transmission Range Switch Signal P (LH9)
0.35 WH 776 Transmission Range Switch Signal P (LLR or LLV)
40 0.5 RD/BK 1228 PC Solenoid Valve High Control
41 0.5 PU/WH 821 VSS High Signal
42 0.35 L-BU 20 Stop Lamp Control
43-44 - - Not Available
45 0.5 D-BU/WH 1231 Low Reference
46 0.5 YE 772 Transmission Range Switch Signal B (LH9)
0.5 YE 772 Transmission Range Switch Signal B (LLR or LLV)
47-48 - - Not Available
49 0.5 BK/WH 451 Ground
Connector Part Information 
  • Harness: Engine
  • OEM: 15463921
  • Service: 88987979
  • Description: 49-Way F GT 280 Series Sealed (BK)
Terminal Part Information 
  • Pins: 1-3,6,7,11,16,17,20,23,25,29-32,35,37-42,45,46
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
  • Pin: 49
  • Terminal/Tray: 15491972/24
  • Core/Insulation Crimp: E/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
scientia non olet · About LEMON Manuals