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Home >> GMC >> 2001 >> C3500 HD 8.1 G, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 8.1L - Component Locator >> Component Locator >> Engine Control System Connector End Views >> Secondary Air Injection (AIR) Relay
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Secondary Air Injection (AIR) Relay

Secondary Air Injection (AIR) Relay

GM535912
Connector Part Information
  • 12129716
  • 4-Way F Metri-Pack 280 Series Sealed (MD GRY)
Pin Wire Color Circuit No. Function
30 RED 642 Battery Positive Voltage
85 PNK 639 Ignition 1 Voltage
86 BRN 436 AIR Pump Relay Control
87 RED 78 AIR Pump Supply Voltage
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