[CherryHasAPontiac]

Engine Control Module (ECM) X1 (LZ4 or LZE)

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Connector Part Information OEM: 13542537 Service: 15498847 Description: 73-Way F Receptacle 0.64 2.8 Sealed (BK)

Terminal Part Information Pins: 73 Terminal/Tray: 7116-4152-02/9 Core/Insulation Crimp: 2/5 Release Tool/Test Probe: 12094430/J-35616-35 (VT) Pins: 1, 9, 12, 13, 16, 17, 18, 19, 20, 23, 24, 27, 28, 29, 30, 31, 32, 33, 34, 36, 48, 50, 52, 56, 58, 59, 60, 61, 63, 64, 65, 68 Terminal/Tray: 33467-0003/23 Core/Insulation Crimp: H/H Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU) Pins: 10, 11, 47, 49, 69, 37, 38, 41 Terminal/Tray: 33467-0005/23 Core/Insulation Crimp: Pins 10, 11, 47, 49, 69 – K/K Core/Insulation Crimp: Pins 37, 38, 41 – J/J Release Tool/Test Probe: J-38125-213/J-35616-64B (L-BU)

Engine Control Module (ECM) X1 (LZ4 or LZE)

Pin​	Wire​	Circuit​	Function​
1​	0.35 OG/BK​	1786​	Park/Neutral Signal​
2–8​	—​	—​	Not Used​
9​	0.35 WH​	17​	Stop Lamp Control​
10​	0.8 PU​	3120​	HO2S High Signal – Bank 1 Sensor 2​
11​	0.8 TN/WH​	3121​	HO2S Low Signal – Bank 1 Sensor 2​
12​	0.35 OG/BK​	380​	A/C Refrigerant Pressure Sensor Signal​
13​	0.35 TN​	5514​	Low Reference​
14–15​	—​	—​	Not Used​
16​	0.35 PU​	1589​	Fuel Level Sensor Signal – Primary​
17​	0.35 D-BU​	473​	High Speed Cooling Fan Relay Control​
18​	0.35 BN​	4​	Ignition Voltage​
19​	0.35 PK​	639​	Ignition Voltage​
20​	0.35 RD/WH​	540​	Battery Positive Voltage​
21–22​	—​	—​	Not Used​
23​	0.35 PU​	1272​	Low Reference​
24​	0.35 D-GN​	890​	Fuel Tank Pressure Sensor Signal​
25–26​	—​	—​	Not Used​
27​	0.35 TN​	2501​	High Speed GMLAN Serial Data Bus (−)​
28​	0.35 TN/BK​	2500​	High Speed GMLAN Serial Data Bus (+)​
29​	0.35 D-BU​	1161​	Accelerator Pedal Position (APP) Sensor 1 Signal​
30​	0.35 BN​	1271​	Low Reference​
31​	0.35 OG/BK​	1057​	Low Reference​
32​	0.35 L-BU​	1162​	Accelerator Pedal Position (APP) Sensor 2 Signal​
33​	0.35 GY​	705​	5-Volt Reference 1​
34​	0.35 GY​	2700​	5-Volt Reference 1​
35​	—​	—​	Not Used​
36​	0.35 TN​	1274​	5-Volt Reference 1​
37​	0.5 TN​	472​	Intake Air Temperature (IAT) Sensor Signal​
38​	0.5 TN/BK​	2760​	Low Reference​
39–40​	—​	—​	Not Used​
41​	0.5 YE​	492​	Mass Air Flow (MAF) Sensor Signal​
42–46​	—​	—​	Not Used​
47​	0.8 PK/BK​	5290​	Ignition Voltage​
48​	0.35 BN​	818​	Vehicle Speed Signal (VSS)​
49​	0.8 TN​	3221​	HO2S Low Signal – Bank 2 Sensor 2​
50​	0.35 D-GN/WH​	465​	Fuel Pump Relay Control – Primary​
51​	—​	—​	Not Used​
52​	0.35 PU/WH​	6386​	Starter Relay Coil Control​
53–55​	—​	—​	Not Used​
56​	0.35 WH/BK​	1164​	5-Volt Reference 2​
57​	—​	—​	Not Used​
58​	0.35 D-GN​	335​	Low Speed Cooling Fan Relay Control​
59​	0.35 BN​	5069​	Main Relay Coil Control​
60​	0.35 TN​	2759​	Low Reference​
61​	0.35 WH​	1310​	EVAP Canister Vent Solenoid Control​
62​	—​	—​	Not Used​
63​	0.35 D-GN/WH​	459​	A/C Compressor Clutch Relay Control​
64​	0.35 OG/WH​	3223​	HO2S Heater Low Control – Bank 2 Sensor 2​
65​	0.35 GY/WH​	3122​	HO2S Heater Low Control – Bank 1 Sensor 2​
66–67​	—​	—​	Not Used​
68​	0.35 BN/WH​	419​	Malfunction Indicator Lamp (MIL) Control​
69​	0.8 PU​	3220​	HO2S High Signal – Bank 2 Sensor 2​
70–72​	—​	—​	Not Used​
73​	2 BK/WH​	451​	Ground​