P0113 on a 2017 Ford Escape
Intake Air Temperature High Input
What does P0113 mean on a 2017 Ford Escape?
P0113 is set when the ECM sees the intake air temperature sensor signal voltage above the calibrated maximum — typically a reading that would represent an unrealistically cold air temperature (often below −40 °F / −40 °C). This is the textbook fingerprint of an open circuit at the IAT sensor: a disconnected sensor, a broken signal wire, or a failed sensor element.
Symptoms on a 2017 Ford Escape
- Check Engine Light is illuminated
- Slightly harder cold starting in some cases
- Mild reduction in fuel economy
- Reduced power under hard acceleration (engine adds extra fuel for "cold" air)
- Often no noticeable drivability problem at all
Likely causes on a 2017 Ford Escape
- Disconnected or unlatched IAT / MAF-IAT connector Most commonEstimated repair: $0– $50
- Open circuit in the IAT signal wire (broken, chafed, or pinched) CommonEstimated repair: $80– $350
- Failed IAT sensor element (open internally) CommonEstimated repair: $30– $150
- Corroded sensor connector pins CommonEstimated repair: $30– $200
- Damaged sensor body from intake backfire OccasionalEstimated repair: $30– $200
- Failed PCM input (extremely rare) RareEstimated repair: $400– $1,500
How to diagnose this on a 2017 Ford Escape
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Confirm where the IAT sensor lives on this engine
Modern engines fall into two configurations: a standalone IAT sensor in the air intake tract, or a combined MAF/IAT assembly where the IAT element is built into the mass airflow housing. Both share P0113 — the diagnostic difference is where to find the connector and which wires carry the IAT signal.
Tools: Vehicle-specific service information
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Read IAT temperature on the scan tool
A working IAT reads close to ambient air temperature when the engine has been off long enough to cool. Compare to the coolant temperature reading at cold start — they should agree within a few degrees. An IAT reading of "−40 °F" or "−40 °C" is the classic open-circuit fingerprint.
Tools: Scan tool with IAT PID
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Inspect the connector and wiring
Unplug the IAT connector and inspect for corrosion, water, or bent pins. With the connector unplugged and the key on, the scan tool should still report a fixed "very cold" value — that confirms an open circuit signature is what set the code.
Tools: Electrical contact cleaner, Flashlight
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Bench-test the IAT sensor with a multimeter
With the sensor removed, measure resistance across its terminals at room temperature. Compare to the service manual — most NTC IAT sensors read 2.0–4.5 kΩ at 68 °F (20 °C). Infinite resistance means the sensor is open and dead. Heating the sensor gently should cause resistance to drop.
Tools: Multimeter, Heat gun or hair dryer (optional), Service spec sheet
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Jumper test the signal wire
With the IAT disconnected, briefly jumper the signal wire to ground and observe the scan tool reading — it should swing from "very cold" to "very hot" (P0112 territory). If the reading does not change, the wiring or PCM input is at fault rather than the sensor.
Tools: Jumper wire, Scan tool
Known Technical Service Bulletins for the 2015-2019 Ford Escape
Manufacturers publish Technical Service Bulletins (TSBs) when a known issue affects a specific vehicle. These bulletins come from the NHTSA database for your Ford Escape.
- UNKNOWN OR OTHER Feb 22, 2026
Ford and Lincoln vehicles equipped with wired keyless entry keypad systems and accessory wireless keyless entry keypad systems may or may not come with a wallet card containing the master code. Unlike the integrated wired keypad, the accessory wireless keypad master code cannot be retrieved from the vehicle using a diagnostic scan tool or from the label printed on the body control module (BCM). The Factory Keyless Entry Code application within the diagnostic scan tool will not provide an applicable master code for the accessory wireless keypad. If the wallet card for an accessory keypad is not available, the "Wireless RF Keypad Diagnosis Guide" can be referenced and provides direction on how to retrieve the master code. This guide is located under the Workshop Manual tab > Accessories > Installation > Wireless RF Keypad Diagnosis Guide > PPT C > Step C2.<br /><br /> Note: The only available keypad for some vehicles from the assembly plant is the accessory wireless keyless entry keypad. The integrated wired keypad cannot be installed on vehicles not equipped from the factory with a wired keyless entry k
NHTSA #11029052 - STRUCTURE Feb 22, 2026
Ford and Lincoln vehicles equipped with wired keyless entry keypad systems and accessory wireless keyless entry keypad systems may or may not come with a wallet card containing the master code. Unlike the integrated wired keypad, the accessory wireless keypad master code cannot be retrieved from the vehicle using a diagnostic scan tool or from the label printed on the body control module (BCM). The Factory Keyless Entry Code application within the diagnostic scan tool will not provide an applicable master code for the accessory wireless keypad. If the wallet card for an accessory keypad is not available, the "Wireless RF Keypad Diagnosis Guide" can be referenced and provides direction on how to retrieve the master code. This guide is located under the Workshop Manual tab > Accessories > Installation > Wireless RF Keypad Diagnosis Guide > PPT C > Step C2.<br /><br /> Note: The only available keypad for some vehicles from the assembly plant is the accessory wireless keyless entry keypad. The integrated wired keypad cannot be installed on vehicles not equipped from the factory with a wired keyless entry k
NHTSA #11029052 - ELECTRICAL SYSTEM Feb 22, 2026
Ford and Lincoln vehicles equipped with wired keyless entry keypad systems and accessory wireless keyless entry keypad systems may or may not come with a wallet card containing the master code. Unlike the integrated wired keypad, the accessory wireless keypad master code cannot be retrieved from the vehicle using a diagnostic scan tool or from the label printed on the body control module (BCM). The Factory Keyless Entry Code application within the diagnostic scan tool will not provide an applicable master code for the accessory wireless keypad. If the wallet card for an accessory keypad is not available, the "Wireless RF Keypad Diagnosis Guide" can be referenced and provides direction on how to retrieve the master code. This guide is located under the Workshop Manual tab > Accessories > Installation > Wireless RF Keypad Diagnosis Guide > PPT C > Step C2.<br /><br /> Note: The only available keypad for some vehicles from the assembly plant is the accessory wireless keyless entry keypad. The integrated wired keypad cannot be installed on vehicles not equipped from the factory with a wired keyless entry k
NHTSA #11029052 - ELECTRICAL SYSTEM Nov 25, 2025
This article supersedes TSB 24-2165 to update the TSB Service Procedure. Some vehicles listed in the Model statement above may exhibit various SYNC performance related concerns including but not limited to: Display operation concerns Navigation inoperative Voice recognition concerns Phone connection issues Dropped phone connections Applink related performance Travel Link not present or showing incorrect traffic Slow system response NOTE: Ford has found some of the APIMs replaced and returned for inspection contained an outdated software level and the APIM did not require replacement. The customer concern may have been resolved by updating the APIM with latest level of software. The SYNC 3 universal thumb drive will be able to update the APIM software without the use of a scan tool and does not require the process to be monitored. Ford will be monitoring APIM replacements to confirm TSB directed software updates have been performed.
NHTSA #11025837 - POWER TRAIN Nov 10, 2025
Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. Pinpoint test HK in the Powertrain Control and Emissions Diagnosis (PC/ED) or in Section 303-14 of the Workshop Manual (WSM) has been updated to address this concern.
NHTSA #11025611 - ELECTRICAL SYSTEM Nov 10, 2025
Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. Pinpoint test HK in the Powertrain Control and Emissions Diagnosis (PC/ED) or in Section 303-14 of the Workshop Manual (WSM) has been updated to address this concern.
NHTSA #11025611
+14 more TSBs available in MECH AI's TSB explorer for this vehicle.
Common fixes
- Reconnect the IAT or MAF-IAT connector
- Replace the IAT sensor (standalone) or the MAF/IAT assembly
- Repair broken IAT signal wire
- Clean corroded sensor connector pins
About the 2015-2019 Ford Escape
The 2015-2019 Ford Escape was commonly sold with the following powertrains: 1.5L EcoBoost I3, 2.0L EcoBoost I4, 2.5L Hybrid I4. Common trims include S, SE, SEL, Titanium.
P0113 vs P0112
These are the two ends of the same circuit:
- P0112 — IAT signal reads too low (sensor sees a very high temperature, often “300 °F”). Usually a shorted-to-ground signal wire or a sensor failed in the closed direction.
- P0113 — IAT signal reads too high (sensor sees a very low temperature, often “−40 °F”). Usually an open circuit — disconnected, broken wire, or sensor open internally.
Why P0113 rarely affects drivability
Modern ECMs use the IAT for relatively minor fuel-trim corrections and to fine-tune cold-start enrichment. With a missing IAT signal, the ECM uses a default value (usually around 70 °F) and the engine runs essentially normally. This is why many drivers report P0113 with no symptoms at all beyond the Check Engine Light.
Combined MAF/IAT assemblies
On most modern vehicles the IAT is integrated into the MAF housing as a single assembly. When the IAT element fails, the entire MAF assembly must be replaced — there is no separate IAT to service. Confirm the part number before ordering; combined assemblies are 4–10× the cost of a standalone IAT.