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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 441 (AUTOMATIC TRANSAXLE - 4T45-E - INTRODUCTION (2 OF 2))COMPONENT LOCATORAUTOMATIC TRANSMISSION RELATED CONNECTOR END VIEWSTRANSMISSION CONTROL MODULE (TCM) C2
2006 Chevrolet Cobalt SS, 4D Sedan, Standard

Transmission Control Module (TCM) C2

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Transmission Control Module (TCM) C2
WARNING: This page is about a different car, the 2006 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Transmission Control Module (TCM) C2 Connector End View
GM890236Courtesy of GENERAL MOTORS CORP.
Transmission Control Module (TCM) C2 Connector Parts Information

Connector Part Information 
  • OEM: 15326594
  • Service:
  • Description: Siemens Socket Header 37-Way (BU)
Terminal Part Information 
  • Terminal/Tray:
  • Core/Insulation Crimp:
  • Release Tool/Test Probe:
Transmission Control Module (TCM) C2 Connector Terminal Identification

Pin Wire Color Circuit No. Function
22 D-BU/WH 1231 ISS Low Signal
23 PU 401 VSS Low Signal
24 OG/BK 586 Low Reference
25 WH 1804 TCC Release Switch Signal
26-32 - - Not Used
33 TN 2501 High Speed GMLan Serial Data Bus +
34 TN/WH 2500 High Speed GMLan Serial Data Bus -
35 WH 776 Transmission Range Signal P
36 - - Not Used
37 L-GN 1222 1-2 Shift Solenoid Valve Control
38 - - Not Used
39 BK 450 Ground
40-42 - - Not Used
43 RD/BK 1230 ISS High Signal
44 YE 400 VSS High Signal
45-47 - - Not Used
48 L-BU 20 Stop Lamp Switch Signal
49-50 - - Not Used
51 YE/BK 1227 Transmission Fluid Temperature Sensor Signal
52 BN/WH 2960 Keyword Serial Data
53-58 - - Not Used
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.