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Home >> GMC >> 2021 >> Yukon AT4 >> Repair and Diagnosis >> Electrical >> Wiring Diagrams >> Component Connector End Views (S79D - T12 (X2)) >> Component Connector End Views >> T12 Automatic Transmission Assembly X2 (MQC)

T12 Automatic Transmission Assembly X2 (MQC)

GM4757907Courtesy of GENERAL MOTORS COMPANY
Connector Part Information
  • Harness Type: Transmission Case
  • OEM Connector: 2203990-1
  • Service Connector: Service by Harness -
  • Description: 13-Way F 1.2 MCON Series (BN)
Terminal Part Information

Terminal Type ID Terminated Lead Diagnostic Test Probe Terminal Removal Tool
I Not required J-35616-14 (GN) No Tool Required
II Not required J-35616-16 (LT GN) No Tool Required
III Not required J-35616-2A (GY) No Tool Required
IV Not required J-35616-4A (PU) No Tool Required
Pin Size Color Circuit Function Terminal Type ID Option
1 0.5 YE / GY 6319 Electronic Transmission Range Select Out of Park Switch 2 Signal II -
2 0.5 YE 6317 Electronic Transmission Range Select Out of Park Switch Signal IV -
3 0.5 YE / OG 6358 Output Speed Signal II -
4 0.5 WH / BU 4510 Transmission Intermediate Speed Signal IV -
5 0.5 VT / GN 4510 Transmission Intermediate Speed Signal II -
6 0.5 WH / VT 6353 Input Speed Signal III -
7 0.5 BN / YE 585 Transmission Fluid Temperature Sensor Signal II -
8 0.5 OG 2159 Park Inhibit Solenoid Assembly Control II -
9 0.5 BN 6387 Transmission High Side Driver 1 Control II -
10 1.5 GN / VT 8640 Battery Positive Voltage II -
11 0.5 WH 6388 Transmission High Side Driver 2 Control I -
12 0.5 BU 4171 Transmission Input Shaft Speed Sensor Circuit 9V Reference II -
13 0.5 GN 4170 Transmission Output Shaft Speed Sensor Circuit 9V Reference II -