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Home >> GMC >> 2001 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1775 (Engine Controls - 6.6L - Component Locator) >> Component Locator >> Engine Controls Connector End Views >> Glow Plug/Intake Heater Relay Assembly

Glow Plug/Intake Heater Relay Assembly

WARNING: This page is about a different car, the 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, 2001 Chevrolet Silverado, and 2001 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Glow Plug/Intake Heater Relay Assembly

GM2074408
Connector Part Information
  • FW-C-4F-B
  • 4-Way F (BLK)
Pin Wire Color Circuit No. Function
A YEL 505 Glow Plug Relay Control
B PNK/YEL - Ground
C PPL 985 IA Heater Relay Control
D PNK 539 Ignition Voltage
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