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HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 31 (WIRING SYSTEMS AND POWER MANAGEMENT)COMPONENT LOCATORELECTRICAL CENTER IDENTIFICATION VIEWSJUNCTION BLOCK - I/P C4
2008 Pontiac Grand Prix Base

Junction Block - I/P C4

2008 Pontiac Grand Prix BaseSECTION Junction Block - I/P C4
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Junction Block - I/P C4 Connector End View
GM655757Courtesy of GENERAL MOTORS CORP.
Junction Block - I/P C4 Connector Parts Information

Connector Part Information 
  • OEM: 12194037
  • Service: See Catalog
  • Description: 12-Way F Metri-Pack 280 Series Flexlock (BN)
Junction Block - I/P C4 Connector Terminal Identification

Pin Wire Color Circuit No. Function
A BK 1050 Ground
B GY/BK 2337 Lower Right Air Temperature Sensor Signal
C BN 718 Low Reference
BN 718 Low Reference
D RD 542 Battery Positive Voltage
E PU 1838 Recirculation Door Position Signal
F PU/WH 760 Blower Motor Speed Control
G - - Not Used
H L-BU/BK 1688 5-Volt Reference
L-BU/BK 1688 5-Volt Reference
J L-BU/BK 1688 5-Volt Reference
L-BU/BK 1688 5-Volt Reference
K - - Not Used
L YE 1791 Low Reference
YE 1791 Low Reference
M YE 1791 Low Reference
YE 1791 Low Reference
RENDER: 1.0x

NO RELATED

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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.