Transfer Case Shift Control Module - C1

2001 Chevrolet Suburban C1500SECTION Transfer Case Shift Control Module - C1
WARNING: This page is about a different variant/trim than selected.
Transfer Case Shift Control Module - C1

GM73221
Connector Part Information
  • 12052107
  • 32-Way F Micro-Pack 100 Series (ORN)
Pin Wire Color Circuit No. Function
E1 TAN 1569 Lock Solenoid Control
E2 - - Not Used
E3 PNK 1561 AWD Indicator Control
E4 LT GRN/BLK 1563 2 'HI' Indicator - Control
E5 BRN/WHT 1555 Channel P Encoder - Signal
E6 RED/WHT 1556 Channel C Encoder - Signal
E7 YEL/BLK 1558 Channel B Encoder - Signal
E8 DK BLU/WHT 1557 Channel A Encoder - Signal
E9 DK GRN/WHT 1133 ATC Class 2 Serial Data
E10 BRN 241 Ignition 3 Voltage
E11 - - Not Used
E12 YEL 400 Signal High - Front
E13 PPL 401 Signal Low - Front
E14 BLK/WHT 1695 Axle Switch Signal
E15 - - Not Used
E16 BLK 1850 Ground
F1 PPL/WHT 1565 4 'LO' Indicator - Control
F2 TAN/BLK 1566 4 'HI' Indicator - Control
F3 BRN 1560 Neutral Indicator Control
F4 LT BLU 1296 Axle Actuator - Control
F5 LT BLU 2221 Signal High - Rear
F6 DK GRN 2222 Signal Low - Rear
F7 GRY/BLK 1694 4WD Low Signal
F8-F11 - - Not Used
F12 BLK/WHT 1554 Encoder Signal Ground
F13 LT GRN/BLK 431 8 Volt Reference
F14 LT GRN/BLK 431 8 Volt Reference
F15 - - Not Used
F16 LT BLU 1693 Switch Signal
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:

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