Engine Control Module (ECM) X2 (LZ4)

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

Fig 1: Engine Control Module (ECM) X2 (LZ4) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	-	-	Not Used
2	0.35 L-GN	1867	12-Volt Reference
3	0.35 GY	2701	5-Volt Reference 2
4	-	-	Not Used
5	0.35 BN	582	TAC Motor Control - 2
6	0.35 YE	581	TAC Motor Control - 1
7	-	-	Not Used
8	0.35 D-GN/WH	428	EVAP Canister Purge Solenoid Control
9-11	-	-	Not Used
12	0.35 GY/WH	3113	HO2S Heater Low Control (Bank 1 Sensor 1)
13	0.35 L-GN	3212	HO2S Heater Low Signal (Bank 2 Sensor 1)
14-15	-	-	Not Used
16	0.35 BN	2198	Camshaft Position Actuator Solenoid High Control
17	0.35 L-GN/BK	1745	Fuel Injector 2 Control
18	0.35 YE/BK	846	Fuel Injector 6 Control
19	0.35 TN/WH	845	Fuel Injector 5 Control
20	0.35 TN	1744	Fuel Injector 1 Control
21	0.35 YE	410	ECT Sensor Signal
22	0.35 TN	2761	Low Reference
23	-	-	Not Used
24	0.35 OG/BK	1175	Low Reference
25	-	-	Not Used
26	0.35 D-BU	496	KS 1 Signal
27	0.35 GY	1716	KS 1 Signal
28	-	-	Not Used
29	0.35 L-BU	1876	KS 2 Signal
30	0.35 GY	2303	KS 2 Signal
31	-	-	Not Used
32	0.35 GY	23	Generator Field Duty Cycle Signal
33	0.35 BN	1174	Oil Level Switch Signal
34	0.35 BK	2755	Low Reference
35	0.35 TN	2752	Low Reference
36	-	-	Not Used
37	0.35 L-BU/BK	844	Fuel Injector 4 Control
38-39	-	-	Not Used
40	0.35 PK/BK	1746	Fuel Injector 3 Control
41	0.35 GY	2705	5-Volt Reference 1
42	-	-	Not Used
43	0.35 GY	2704	5-Volt Reference 1
44	0.35 OG/WH	812	12-Volt Reference
45-49	-	-	Not Used
50	0.35 TN/WH	331	Oil Pressure Sensor Signal
51	-	-	Not Used
52	0.35 TN	2199	Low Reference
53	0.35 OG/BK	469	Low Reference
54-55	-	-	Not Used
56	0.35 TN/WH	3111	HO2S Low Signal (Bank 1 Sensor 1)
57	0.35 PU/WH	3110	HO2S High Signal (Bank 1 Sensor 1)
58	0.35 L-GN	432	MAP Sensor Signal
59	0.35 PU/WH	3210	HO2S Reference Voltage (Bank 2 Sensor 1)
60	0.35 TN/WH	3211	HO2S Low Reference (Bank 2 Sensor 1)
61	0.35 OG	225	Generator Turn On Signal
62	-	-	Not Used
63	0.35 PU	486	TP Sensor 2 Signal
64	0.35 BN/WH	633	CMP Sensor Signal
65	0.35 D-GN	485	TP Sensor 1 Signal
66	0.35 PK/BK	632	Low Reference
67	-	-	Not Used
68	0.35 L-BU/BK	647	Medium Resolution Engine Speed Signal
69	0.35 PU	574	Low Reference
70	0.35 PU	2121	IC 1 Control
71	0.35 OG/WH	2122	IC 2 Control
72	0.35 L-BU	2123	IC 3 Control
73-77	-	-	Not Used
78	0.35 YE	2174	Low Reference
79-80	-	-	Not Used

Connector Part Information

OEM: 13542562
Service: See Catalog
Description: 80-Way F MX123 34566 Series Sealed (GY)

Terminal Part Information

Pins: 2-3, 8, 12-13, 16, 21-22, 24, 32-35, 41, 43-44, 50, 52-53, 58, 61, 63-66, 68-72, 78
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: H/H
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Pins: 5-6, 17-20, 26-27, 29-30, 37, 40, 56-57, 59-60
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: Pins 5-6, 56-57, 59-60 - K/K
Core/Insulation Crimp: Pins 17-20, 26-27, 29-30, 37, 40 - J/J
Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)