K27 Fuel Pump Control Module

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: K27 Fuel Pump Control Module Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	2 RD/WH	2640	Battery Positive Voltage
2-4	-	-	Not Used
5	0.5 TN/BK	2500	High Speed GMLAN Serial Data Bus+
6	0.35 TN/BK	2500	High Speed GMLAN Serial Data Bus+
7	-	-	Not Used
8	0.35 L-BU	5986	Serial Data Communication Enable
9	-	-	Not Used
10	0.5 PU	7446	Fuel Pressure Sensor Signal
11-12	-	-	Not Used
13	2 GY	120	Fuel Pump Supply Voltage
14-16	-	-	Not Used
17	0.35 TN	2501	High Speed GMLAN Serial Data Bus -
18	0.35 TN	2501	High Speed GMLAN Serial Data Bus -
19	-	-	Not Used
20	0.35 D-GN/WH	465	Fuel Pump Relay Control
21	0.5 PK	1739	Ignition 1 Voltage
22	0.5 BN	7445	5-Volt Reference
23	0.5 GY	7447	Low Reference
24	-	-	Not Used
25	2 BK	2150	Ground
26-37	-	-	Not Used
38	2 PK	1580	Fuel Pump Motor Low Reference

Connector Part Information

Harness Type: Body
OEM Connector: 13518748
Service Connector: 19178089
Description: 38-Way F 2.8 Series, Sealed (BK)

Terminal Part Information

Pins: 1, 13, 25, 38
Terminal/Tray: 15392777/23
Core/Insulation Crimp: Pending
Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Pins: 5, 6, 8, 10, 17, 18, 20-23
Terminal/Tray: SAITS-A03T-M064/14
Core/Insulation Crimp: 9/9
Release Tool/Test Probe: J-38125-215A/J-35616-64B (L-BU)