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Home >> Suzuki >> 1999 >> Swift Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0113: Intake Air Temperature (IAT) Circuit High Input
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DTC P0113: Intake Air Temperature (IAT) Circuit High Input

NOTE: If DTC P0108, P0113, P0118, P0123 and/or P0450 are set together, check PCM harness connector "B" terminal No. 9 (Green/Red wire on Esteem, or Light Green/Black wire on Swift) for an open circuit.
  1. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Select IAT parameter. If display reads -40°F (-40°C), go to next step. If display reading is not -40°F (-40°C), check for an intermittent problem. Go to INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.
  2. Turn ignition off. Disconnect IAT sensor harness connector located next to air cleaner housing. Turn ignition on. Measure voltage between ground and Gray/Red wire (Esteem) or Gray wire (Swift) of IAT sensor harness connector. Reading should be 4-6 volts. If reading is as specified, go to next step. If reading is not as specified, check wire for short to battery power. Repair as necessary. If wiring is okay, replace PCM.
  3. Connect PCM harness connector. Using a fused jumper wire, jumper terminals at IAT sensor harness connector together. Turn ignition on. If display on scan tool reads 246°F (119°C), replace IAT sensor. If display reading is not 246°F (119°C), check Green/Red wire (Esteem) or Gray wire (Swift) for an open. If wire is okay, replace PCM. Retest system.
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