Engine Control Module (ECM) X3

Fig 1: Engine Control Module (ECM) X3 Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1-6	-	-	Not Used
7	0.35 OG	225	Generator Turn On Signal
8-11	-	-	Not Used
12	0.35 TN/BK	464	Delivered Torque Signal
13-16	-	-	Not Used
17	0.35 OG/BK	463	Requested Torque Signal
18	0.35 BN	1174	Oil Level Switch Signal
19-20	-	-	Not Used
21	0.35 BK/WH	2751	Low Reference
22	-	-	Not Used
23	0.35 OG/BK	469	Low Reference
24-28	-	-	Not Used
29	0.35 GY	23	Generator Field Duty Cycle Signal
30-31	-	-	Not Used
32	0.35 OG	6392	IMT Valve Control
33	0.5 TN	2501	High Speed GMLAN Serial Data Bus (-)
34	-	-	Not Used
35	0.35 TN	2761	Low Reference
36	-	-	Not Used
37	0.35 GY	2700	5-Volt Reference
38	-	-	Not Used
39	0.35 GY	2704	5-Volt Reference
40-45	-	-	Not Used
46	0.35 D-GN	6307	Park/Neutral Signal
47	-	-	Not Used
48	0.35 D-GN/WH	428	EVAP Canister Purge Solenoid Control
49	0.35 D-GN	335	Low Speed Cooling Fan Relay Control
50-52	-	-	Not Used
53	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus (+)
54	-	-	Not Used
55	0.35 YE	410	ECT Sensor Signal
56	-	-	Not Used
57	0.35 OG/BK	380	A/C Refrigerant Pressure Sensor Signal
58	-	-	Not Used
59	0.35 L-GN	432	MAP Sensor Signal
60-63	-	-	Not Used
64	0.35 YE/BK	6806	IMT Valve Signal
65	-	-	Not Used
66	0.35 BN/WH	6354	Output Speed High (Replicated TOSS) Input Signal
67-73	-	-	Not Used

Connector Part Information

Terminal Part Information