Vehicle Communication Interface Module (VCIM) X1 (UE1)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Vehicle Communication Interface Module (VCIM) X1 (UE1) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire Color	Circuit	Function
1	0.35 D-GN	5060	Low Speed GMLAN Serial Data
2	0.35 BN/WH	2517	Keypad Red LED Signal
3	0.35 YE/BK	2516	Keypad Green LED Signal
4-5	-	-	Not Used
6	0.35 L-GN/BK	2515	Keypad Control
7	0.5 BK	2550	Ground
8-9	-	-	Not Used
10	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus+
11	0.35 D-GN/WH	2514	Keypad Signal
12	0.5 TN	2501	High Speed GMLAN Serial Data Bus-
13-14	-	-	Not Used
15	0.5 RD/WH	3240	Battery Positive Voltage
16	-	-	Not Used

Connector Part Information

OEM: 15431362
Service: 15306351
Description: 16-Way F 040 II (WH)

Terminal Part Information

Terminal/Tray: 15445905/23
Core/Insulation Crimp: J/J
Release Tool/Test Probe: 12180559/J-35616-16 (L-GN)