K27 Fuel Pump Control Module

WARNING: This page is about a different car, the 2011 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS CORP.

Connector Part Information

Harness Type: Body
OEM Connector: 31381-1000
Service Connector: 19178089
Description: 38-Way F 2.8 Series, Sealed (BK)

Terminal Part Information

Pins: 1, 25
Terminated Lead: 13575405
Release Tool: J-38125-553
Diagnostic Test Probe: J-35616-4A (PU)
Terminal/Tray: 15304719/19
Core/Insulation Crimp: 2/5

Pins: 5, 6, 8, 10, 17, 18, 20-24
Terminated Lead: Pending
Release Tool: J-38125-215A
Diagnostic Test Probe: J-35616-64B (L-BU)
Terminal/Tray: SAITS-A03T-M064/14
Core/Insulation Crimp: 9/9

Pins: 13, 38
Terminated Lead: 13575392
Release Tool: J-38125-553
Diagnostic Test Probe: J-35616-4A (PU)
Terminal/Tray: 15304720/19
Core/Insulation Crimp: 4/5

K27 Fuel Pump Control Module

Pin	Size	Color	Circuit	Function	Option
1	1	RD/L-GN	1540	Battery Positive Voltage	-
2-4	-	-	-	Not Used	-
5	0.5	L-BU	2500	High Speed GMLAN Serial Data (+) (1)	-
6	0.5	L-BU	2500	High Speed GMLAN Serial Data (+) (1)	-
7	-	-	-	Not Used	-
8	0.5	WH/L-BU	5986	Serial Data Communication Enable	-
9	-	-	-	Not Used	-
10	0.35	L-BU/WH	7446	Fuel Line Pressure Sensor Signal	-
11-12	-	-	-	Not Used	-
13	2	GY	120	Fuel Pump Supply Voltage	-
14-16	-	-	-	Not Used	-
17	0.5	WH	2501	High Speed GMLAN Serial Data (-) (1)	-
18	0.5	WH	2501	High Speed GMLAN Serial Data (-) (1)	-
19	-	-	-	Not Used	-
20	0.35	L-GN/GY	465	Fuel Pump Primary Relay Control	-
21	0.5	VT/WH	639	Run/Crank Ignition 1 Voltage	-
22	0.35	BN/RD	7445	5 Volt Reference	-
23	0.35	BK/YE	7447	Low Reference	-
24	0.5	L-BU	7443	Fuel System Control Module Shield Extension	-
25	1	BK	850	Ground	-
26-37	-	-	-	Not Used	-
38	2	BK/L-GN	1580	Low Reference	-