INTAKE AIR TEMPERATURE CIRCUIT HIG INPUT

Intake Air Temperature Circuit High Input

A code P0113 may mean that one or more of the following has happened:
Internally failed IAT sensor Faulty connection at IAT sensor
Open in IAT ground circuit or signal circuit
Short to voltage in IAT signal circuit or reference circuit IAT harness and/or wiring routed too close to high-voltage wiring (e.g. alternator, spark plug cables, etc.)
Faulty PCM (less likely but not impossible)

code p 0113 refers to intake air temperature (IAT) sensor --circuit malfunction===causes wiring open circuit / short to positive ---wiring short to ground ---ground wire defective --IAT sensor---ECM
the MAF ( mass air flow) sensor has nothing to do with the fault
the fault is in the wiring or the IAT sensor

P0113 - It is Intake Air Temperature Circuit High (IAT) Input.
First make sure you IAT connector is secure and wiring is intact.
Check your air filter first to see if it is dirty.
Try cleaning intake and throttle body.
Finally could be faulty IAT

Diagnostic Trouble Code (DTC) P0113

Intake Air Temperature Sensor High Voltage

What is the circuit like?

• In order to regulate the signal voltage going to the engine control module (ECM) the Intake Air Temperature (IAT) Sensor utilizes the thermistor.
• This circuit receives a 5 volt reference voltage and a ground to the sensor supplied by the ECM.
• The IAT sensor signal voltage will be high when the air is moderately cold as the resistance will be high.
• The IAT sensor signal voltage will be low when the air is moderately warm as the resistance will be low.

I hope this helps, mike from fixya, I am writing another comment in another comment to continue some. Thanks Mike

P0103 Mass or Volume Air Flow Circuit High Input P0113 Intake Air Temperature Circuit High Input P0431 Warm Up Catalyst Efficiency Below Threshold (Bank 2) A code P0431 may mean that one or more of the following has happened:

• The catalytic converter is no longer functioning properly
• An oxygen sensor is not reading (functioning) properly
• There is an exhaust leak

A code P0113 may mean that one or more of the following has happened:

• Internally failed IAT sensor
• Faulty connection at IAT sensor
• Open in IAT ground circuit or signal circuit
• Short to voltage in IAT signal circuit or reference circuit
• IAT harness and/or wiring routed too close to high-voltage wiring (e.g. alternator, spark plug cables, etc.)
• Faulty PCM (less likely but not impossible)

A code P0103 may mean that one or more of the following has happened:

• The MAF may be disconnected, or a wiring connection may be bad
• The MAF sensor may be damaged
• The vehicle computer may be faulty (very rare)

A code P0113 may mean that one or more of the following has happened:

• Internally failed IAT sensor
• Faulty connection at IAT sensor
• Open in IAT ground circuit or signal circuit
• Short to voltage in IAT signal circuit or reference circuit
• IAT harness and/or wiring routed too close to high-voltage wiring (e.g. alternator, spark plug cables, etc.)
• Faulty PCM (less likely but not impossible)

Trouble Code: P0113 (4.0L L6 VIN S Auto)
IAT Sensor Circuit High Input Print this code data Number of Trips to Set Code: 1
OBD II Monitor Type: CCM Details
Indicators: MIL Details

• CCM Details

Trouble Code Conditions:
Check with ignition on or engine running; battery voltage more than 10v; The PCM detected the IAT Sensor input was over 4.90v (exc. Dakota, Durango, Ram) or 4.98v (Dakota, Durango, Ram) for 3 seconds.

Possible Causes:

• IAT Sensor signal circuit shorted to VREF (5v)
  
• IAT Sensor signal circuit is open, or the ground circuit is open
  
• IAT Sensor is damaged or it has failed (an internal open circuit)
  
• PCM has failed
  

Try unplugging and plugging the map sensor, this device should have manifold pressure hooked up to it, via hose, so check for cracks or leaks. Then clear codes and test again.

WHat engine?

P0113 Means Intake Air Temperature circuit high input......

Your IAT sensor may be faulty. It is a sensor on the intake manifold.