Dodge P1115: General Temperature Rationality

Is your scanner showing Dodge P1115?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Dodge P1115: General Temperature Rationality

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$290-$310
Can I Still Drive?
:
Yes (Short-term only)

What Does The Dodge P1115 Code Mean?

The Powertrain Control Module (PCM) uses General Temperature Rationality to look at the outputs of the three temperature sensors and compares them under cold start conditions. Following a start to run delay time, the outputs of the Ambient Air Temperature (AAT) Sensor, Engine Coolant Temperature (ECT) Sensor, and the Intake Air Temperature (IAT) Sensor will be compared. If two sensors agree but not the third, the third sensor is declared as irrational. If all three sensors are irrational the General Temperature Sensor Rationality is declared.

What Are The Potential Causes Of The Dodge P1115 Code?

  • Excessive resistance in the sensor signal circuit
  • Excessive resistance in the sensor ground circuit
  • Sensor signal circuit shorted to ground
  • Sensor signal circuit shorted to voltage
  • Sensor signal circuit shorted to the sensor ground circuit
  • Temperature sensor
  • Powertrain control module (PCM)

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> NGK/NTK Ambient Air Temp Sensor AN0009 (76002)
>>> OTUAYAUTO Engine Coolant Temperature Sensor 5149077AB
>>> CCIYU Air Intake Charge Temperature Sensor
>>> 72-9402 Engine Control Module - Direct Fit, Sold individually

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Dodge P1115, DTCDECODE.

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