Automatic Transmission Shift Lever (M30, MYC, MYD, M99 or MW7)

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Automatic Transmission Shift Lever (M30, MYC, MYD, M99 or MW7)

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	0.35 L-BU	553	Tow/Haul Switch Signal
2	0.35 BK/WH	1851	Ground (M30, MYC, MYD, M99 or MW7)
3	0.35 PU	5526	Tap Up/Tap Down Switch Signal (MYC, MYD, M99 or MW7)
4	0.35 PK	1444	12-Volt Reference (MYC, MYD, M99 or MW7)

Connector Part Information

Harness: Steering Column
OEM: HCMDWSB-04-S
Service: Service by Harness - See Part Catalog
Description: 4-Way M HCM Series (WH)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit