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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) C1
2006 Chevrolet Cobalt SS, 4D Sedan, Standard

Transmission Control Module (TCM) C1

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Transmission Control Module (TCM) C1
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) C1 Connector End View
GM890242Courtesy of GENERAL MOTORS CORP.
Transmission Control Module (TCM) C1 Connector Parts Information

Connector Part Information 
  • OEM: 15326595
  • Service:
  • Description: Siemens Socket Header 21-Way (BU)
Terminal Part Information 
  • Terminal/Tray:
  • Core/Insulation Crimp:
  • Release Tool/Test Probe:
Transmission Control Module (TCM) C1 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 PK 639 Ignition 1 Voltage
2 - - Not Used
3 BN 323 High Side Driver 2
4 RD/BK 1228 PC Solenoid Valve High Control
5 BN 418 TCC PWM Solenoid Valve Control
6 OG 1440 Battery Positive Voltage
7-8 - - Not Used
9 D-BU 1225 Transmission Fluid Pressure Switch Signal B
10 RD 1226 Transmission Fluid Pressure Switch Signal C
11-13 - - Not Used
14 BK/WH 771 Transmission Range Signal A
15 YE 772 Transmission Range Signal B
16 GY 773 Transmission Range Signal C
17-19 - - Not Used
20 L-BU/WH 1229 PC Solenoid Valve Low Control
21 YE/BK 1223 2-3 Shift Solenoid Valve Control
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.