Body Control Module (BCM) X1

WARNING: This page is about a different car, the 2008 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Body Control Module (BCM) X1 Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	-	-	Not Used
2	0.35 WH	1390	Off/Run/Crank Voltage
3	0.35 GY/PK	1884	Cruise Control Set/Coast/Resume/Accel Switch Signal
4	0.35 WH/BK	1073	5-Volt Reference
5	0.35 L-GN	1715	Windshield Wiper Switch High Signal
6	0.35 D-BU	1796	Steering Column Radio Control Signal
7	0.35 GY	397	Cruise Control On Switch Signal
8	0.35 BK/WH	1251	Ground
9	0.35 L-BU	1714	Windshield Wiper Switch Low Signal
10-13	-	-	Not Used
14	0.35 PK	3	Ignition 1 Voltage
15	0.35 L-BU/WH	1414	Left Turn Signal Switch Signal
16	0.35 D-BU/WH	1415	Right Turn Signal Switch Signal
17	0.35 PU	1375	Remote Radio Control ACC Supply Voltage
18	0.35 PU/L-GN	524	Headlamp Switch High Beam Signal
19	0.35 TN	2144	Hazard Switch Signal
20	-	-	Not Used
21	0.35 BN	4	Accessory Voltage
22	-	-	Not Used
23	0.5 TN/GY	1355	Valet Mode Switch Signal
24	0.35 PK	94	Windshield Washer Switch Signal
25	0.35 YE	307	Flash to Pass Switch Signal
26	0.35 PU/WH	816	A/T Shift Lock Solenoid Supply Voltage (AV8)
27	-	-	Not Used

Connector Part Information

OEM: HITPB-27-A-LM
Service: See Catalog
Description: 27-Way F (GN)

Terminal Part Information

Pins: 2-9, 14-19, 21, 24-26
Terminal/Tray: SNAC3-A021T-M0.64/20
Core/Insulation Crimp: J/J
Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Pins: 23
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit