Engine Control Module (ECM) C3

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Connector End Views

Courtesy of GENERAL MOTORS CORP.

Engine Control Module (ECM) Connector End Views

Connector Part Information

OEM: 13510430
Service: See Catalog
Description: 73-Way F (BK w/GY Center)

Terminal Part Information

Pins: 7, 18, 21, 23, 29, 32, 37, 39, 46, 48, 49, 55, 57, 59, 64
Terminal/Tray: 33467-0003/23
Core/Insulation Crimp: H/H
Release Tool/Test Probe: J-38125-213/J-35616-64A (L-BU)

Pins: 10, 11, 33, 35, 53, 68
Terminal/Tray: 33467-0005/23
Core/Insulation Crimp: J/J
Release Tool/Test Probe: J-38125-213/J-35616-64A (L-BU)

Engine Control Module (ECM) C3

Pin	Wire Color	Circuit No.	Function
1-6	-	-	Not Used
7	OG	225	Generator Turn On Signal
8-17	-	-	Not Used
18	BN	1174	Oil Level Switch Signal
19-20	-	-	Not Used
21	TN	5514	Low Reference
22	-	-	Not Used
23	OG/BK	469	Low Reference
24-28	-	-	Not Used
29	GY	23	Generator Field Duty Cycle Signal
30-31	-	-	Not Used
32	OG	6392	Variable Tuning Signal (LZ9)
33	TN	2501	High Speed GMLAN Serial Data Bus-
34	-	-	Not Used
35	TN	2761	Low Reference
36	-	-	Not Used
37	GY	2700	A/C Pressure Sensor 5 Volt Reference
38	-	-	Not Used
39	GY	2704	5-Volt Reference
40-45	-	-	Not Used
46	OG/BK	1786	Park/Neutral Signal
47	-	-	Not Used
48	D-GN/WH	428	EVAP Canister Purge Solenoid Control
49	D-GN	335	Low Speed Cooling Fan Relay Control
50-52	-	-	Not Used
53	TN/BK	2500	High Speed GMLAN Serial Data Bus+
54	-	-	Not Used
55	YE	410	ECT Sensor Signal
56	-	-	Not Used
57	OG/BK	380	A/C Refrigerant Pressure Sensor Signal
58	-	-	Not Used
59	L-GN	432	MAP Sensor Signal
60-63	-	-	Not Used
64	YE/BK	6806	IMT Fan Position Signal (LZ9)
65-73	-	-	Not Used