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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 275 (ENGINE CONTROL SYSTEM)INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTIONCIRCUIT OPEN/SHORT INSPECTION
2006 Chevrolet Suburban C2500, 6.0 U

Circuit Open/Short Inspection

2006 Chevrolet Suburban C2500, 6.0 USECTION Circuit Open/Short Inspection
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the PCM connector.
  2. Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)
    Fig 1: Identifying Intake Air Temperature Sensor Terminals
    G00972606Courtesy of MAZDA MOTORS CORP.
  1. Open circuit 
    • If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
      • MAF/IAT sensor terminal D and PCM terminal 1AH
      • MAF/IAT sensor terminal E and PCM terminal 1AA
  1. Short circuit 
    • If there is continuity, there is a short circuit. Repair or replace the wiring harness.
      • MAF/IAT sensor terminal E and power supply
      • MAF/IAT sensor terminal D and power supply
      • MAF/IAT sensor terminal D and body GND
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.