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Home >> Suzuki >> 2001 >> Swift GA, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0112: Intake Air Temperature Sensor Circuit Low Input >> Diagnosis & Repair Procedure
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Diagnosis & Repair Procedure

  1. Perform DTC CONFIRMATION TEST . If DTC P0112 is set, go to next step. If DTC P0112 is not set, problem is intermittent. System is okay at this time. See TROUBLE SHOOTING - NO CODES article.
  2. Turn ignition on. Using scan tool, select IAT parameter. If parameter reads 246°F (119°C), go to next step. If parameter does not read 246°F (119°C), problem is intermittent. System is okay at this time. See TROUBLE SHOOTING - NO CODES article.
  3. Turn ignition off. Disconnect IAT sensor connector located next to air cleaner housing. Turn ignition on. If parameter reading on scan tool changes to -40°F (-40°C), replace IAT sensor and go to DTC CONFIRMATION TEST . Go to next step.
  4. If parameter reading on scan tool does not change to -40°F (-40°C), check for short to ground in Gray wire between IAT sensor and PCM 16-pin connector C22 terminals No. 14. See Figure. See WIRING DIAGRAMS article. Repair as necessary and go to DTC CONFIRMATION TEST . If wire is okay, replace PCM and go to DTC CONFIRMATION TEST .
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