2009 Chevrolet Tahoe Base, 4.8 CFACTORY OEM SERVICE PROCEDURE

Fuel Pump Flow Control Module (except LY6)

Fig 1: Fuel Pump Flow Control Module (except LY6) Connector End View
GM1711002Courtesy of GENERAL MOTORS CORP.
Fuel Pump Flow Control Module (except LY6)

Pin Wire Circuit Function
1 3 BK 2150 Ground
2-4 - - Not Available
5 0.5 GY 7447 Low Reference
6 0.5 TN 2501 High Speed GMLAN Serial Data -
7 0.5 TN/BK 2500 High Speed GMLAN Serial Data +
8-9 - - Not Available
10 0.5 PU 7446 Fuel Line Pressure Sensor Signal
11-12 - - Not Available
13 0.5 D-GN/WH 465 Fuel Pump Primary Relay Control
14 - - Not Available
15 0.5 PK 439 Run/Crank Ignition Voltage
16 3 PK 1580 Low Reference
17 0.5 L-BU 5986 Serial Data Communication Enable
18-20 - - Not Available
21 0.5 TN 2501 High Speed GMLAN Serial Data -
22 0.5 TN/BK 2500 High Speed GMLAN Serial Data +
23-31 - - Not Available
32 3 RD/WH 1940 Battery Positive Voltage
33-35 - - Not Available
36 0.5 BN 7445 Reference Voltage
37-43 - - Not Available
44 0.5 GY 7443 Fuel Pump Flow Control Module Shield Extension
45-46 - - Not Available
47 3 GY 120 Fuel Pump Control
Connector Part Information 
  • OEM: 13570967
  • Service: 19168025
  • Description: 15-Way F 0.64 6.3 Sealed (BK)
Terminal Part Information 
  • Pins: 1, 16, 32, 47
  • Terminal/Tray: 15476168/5
  • Core/Insulation Crimp: F/3
  • Release Tool/Test Probe: 15315247/J-35616-42 (RD)
  • Pins: 5-7, 10, 13, 15, 17, 21, 22, 36, 44
  • Terminal/Tray: 7116-3703-02/14
  • Core/Insulation Crimp: 9/9
  • Release Tool/Test Probe: J-38125-215A/'J-35616-64B (L-BU)
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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