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HOMESERVICE MANUALSCHEVROLET2007SUBURBAN C1500, 5.3 0REPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION - 4L60-E/4L65-E/4L70-E - INTRODUCTION (2 OF 2)COMPONENT LOCATORAUTOMATIC TRANSMISSION RELATED CONNECTORSTRANSMISSION CONTROL MODULE (TCM), ENGINE SIDE
2007 Chevrolet Suburban C1500, 5.3 0

Transmission Control Module (TCM), Engine Side

2007 Chevrolet Suburban C1500, 5.3 0SECTION Transmission Control Module (TCM), Engine Side
Fig 1: Transmission Control Module (TCM), Engine Side Connector End View
GM1530595Courtesy of GENERAL MOTORS CORP.
Transmission Control Module (TCM), Engine Side Connector Parts Information

Connector Part Information 
  • OEM: 15463921
  • Service: N/A
  • Description: Conn 49-Way F Micro-64 GT 280 Series Sealed (BK)
Transmission Control Module (TCM), Engine Side Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 BN 418 TCC PWM Solenoid Valve Control
2 L-GN 1222 1-2 Shift Solenoid Valve Control
3 OG 1983 ISS Signal
4 - - Not Used
5 OG/BK 6399 Replicated TOS Signal
6 TN 2501 High Speed GMLAN Serial Data Bus -
7 TN/WH 2500 High Speed GMLAN Serial Data Bus +
8-10 - - Not Used
11 D-BU 5985 Accessory Wake Up Serial Data
12-13 - - Not Used
14 WH 687 3-2 Shift Solenoid Valve Control
15 - - Not Used
16 L-GN/BK 822 VSS High Signal
17 L-BU/WH 1229 PC Solenoid Valve Low Control
18-19 - - Not Used
20 YE/BK 1223 2-3 Shift Solenoid Valve Control
21-22 - - Not Used
23 GY 773 Transmission Range Switch Signal C
24 PK 1224 Transmission Fluid Pressure Switch Signal A
25 TN/BK 422 TCC Solenoid Valve Control
26-28 - - Not Used
29 TN/WH 771 Transmission Range Switch Signal A
30 TN 2762 Low Reference
31 PK 2139 Ignition 1 Voltage
32 RD/WH 1840 Battery Positive Voltage
33 OG 1226 Transmission Fluid Pressure Switch Signal C
34 - - Not Used
35 YE/BK 1227 TFT Sensor Signal
36 - - Not Used
37 TN 2501 High Speed GMLAN Serial Data Bus -
38 TN/WH 2500 High Speed GMLAN Serial Data Bus +
39 WH 776 Transmission Range Switch Signal P
40 OG/BK 1228 PC Solenoid Valve High Control
41 PU/WH 821 VSS Low Signal
42 L-BU/WH 6311 Brake Switch Signal
43 - - Not Used
44 D-BU 1225 Transmission Fluid Pressure Switch Signal B
45 L-BU 1984 Low Reference
46 YE 772 Transmission Range Switch Signal B
47-48 - - Not Used
49 BK/WH 451 Ground
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.