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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 941 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 6.6L (LMM) - INTRODUCTION (2 OF 2))COMPONENT LOCATORENGINE CONTROLS CONNECTORSINTAKE AIR HEATER (IAH) MODULE
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Intake Air Heater (IAH) Module

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Intake Air Heater (IAH) Module
WARNING: This page is about a different car, the 2007 GMC Savana Special, 2007 GMC Savana Camper Special, 2007 GMC Savana, and 2007 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Intake Air Heater (IAH) Module Connector End View
GM1583743Courtesy of GENERAL MOTORS CORP.
Intake Air Heater (IAH) Module Connector & Terminal Parts Information

Connector Part Information 
  • OEM: DT16-6S-K002
  • Service: See Catalog
  • Description: 6-Way F Sealed (GN)
Terminal Part Information 
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
Intake Air Heater (IAH) Module Terminal Identification

Pin Wire Color Circuit No. Function
1 BK IC180 IAH Temperature Signal
2 OG IC181 IAH Command 1
3 YE IC182 IAH Command 2
4 PK IC183 IAH Current Signal
5 TN IC184 IAH Voltage Signal
6 RD IC185 IAH Feedback Signal
RENDER: 1.0x

NO RELATED

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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.