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Home >> Cadillac >> 2014 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Wiring Systems And Power Management - Component Connector End Views - Radio (X2 Without UL5) To Yaw And Lateral Sensor) >> Component Connector End Views >> Transmission Control Module (TCM) (M30)
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Transmission Control Module (TCM) (M30)

WARNING: This page is about a different car, the 2014 GMC Sierra 3500 HD, 2014 GMC Sierra 2500 HD, 2014 Chevrolet Silverado 3500 HD, and 2014 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
GM1544228Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness: Engine
  • OEM: 15463921
  • Service: 88987979
  • Description: 49-Way F GT 280 Micro-Pack 64 Series Sealed (BK)

Terminal Part Information
  • Pins: 1, 2, 6, 7, 16, 17, 20, 25, 31, 32, 35, 37, 38, 40, 41
  • Terminated Lead: 13575528
  • Release Tool: J-38125-21
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Pins: 3, 5, 11, 23, 29, 30, 39, 45, 46
  • Terminated Lead: 13579968
  • Release Tool: J-38125-21
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Pin: 49
  • Terminated Lead: Pending
  • Release Tool: J-38125-553
  • Diagnostic Test Probe: J-35616-4A (PU)
  • Terminal/Tray: 15491972/24
  • Core/Insulation Crimp: E/5
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/BK 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
42-44 - - 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
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