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  #1  
Old 06-23-2009, 04:14 PM
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Join Date: Jun 2009
Posts: 2
Default 02 Elantra P0113 Air Intake Temp High

I have an 02 Elantra GT with code P0113 Intake air temp circuit high. I've looked up the problem on hmaservice, but the photos and diagrams don't seem to match my car. The diagram shows five terminals on the MAFS connector, but mine only has four (not to mention it's in a different place than the photo).

Can anyone help or point me to some basic, accurate troubleshooting steps for this?

Does this problem usually need replacement of the MAFS?

Thanks,

Pete
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  #2  
Old 06-23-2009, 05:32 PM
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Join Date: Sep 2008
Posts: 1,254
Default

Intake air temp sensor is different from the MAP sensor. IAT is built into the MAP however. Are you sure your looking at the correct diagram?

ELANTRA(XD) >2002 > G 2.0 DOHC > Fuel System > MFI Control System > Intake Air Temperature (IAT) Sensor > DESCRIPTION AND INSPECTION
INTAKE AIR TEMPERATURE SENSOR(IAT sensor)
The intake air temperature sensor (IAT Sensor), built in to the MAP sensor, is a resistor-based sensor detect the intake air temperature. According to the intake air temperature information from the sensor, the ECM will control the necessary amount of fuel injection.

[See large image...]
CIRCUIT DIAGRAM

[See large image...]
TROUBLESHOOTING HINTS
The MIL is ON or the DTC is displayed on the HI-SCAN (Pro) under the following condition;
a.
When the intake air temperature is detected below--40C or higher than 120C.
USING HI-SCAN (Pro)
Check item

Data display

Check conditions

Engine state

Test specification
Intake air temperature sensor

Air temperature

Ignition switch : ON or engine running

When -20C (-40F)

-20C
When 0C (32F)

0C
When 20C (68F)

20C
When 40C (104F)

40C
When 80C (176F)

80C

HARNESS INSPECTION PROCEDURES

[See large image...]

[See large image...]
SENSOR INSPECTION
1.
Using a multimeter, measure the IAT sensor resistance between terminals 3 and 4.
IG.SW.ON

Temperature C (F)

Output voltage (Ω)
0 (32)

4.5 - 7.5Ω
20 (68)

2.0 - 3.0Ω
40 (104)

0.7 - 1.6Ω
80 (176)

0.2 - 0.4Ω

2.
If the resistance deviates from the standard value, replace the intake air temperature sensor assembly.


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)
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  #3  
Old 06-24-2009, 10:15 AM
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Join Date: Jun 2009
Posts: 2
Default

Thanks. Now that you showed me what I should have been looking for I was able to find the proper diagram. I was looking at the specific code info under DTC (which isn't model/year specific, I guess?). Looks like I need to figure out how to use hmaservice a little better.
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Old 06-24-2009, 10:15 AM
 
 
 
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Tags
03, 2009, air, elantra, forum, hyundai, hyundia, iat, intake, intakes, location, replace, sensor, sonata, temperature


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