P2173 on Jeep
Throttle Actuator Control System - High Air Flow Detected
P2173 on Jeep vehicles indicates throttle actuator control system - high air flow detected. Au7o has documented this code across 1 Jeep model — most commonly on Grand Cherokee. The PCM detected sustained higher airflow than expected for the commanded throttle position, indicating the throttle is allowing more air than commanded or there is an unmetered air leak. Typical repair costs on Jeep range from $150 to $650, depending on the specific model and root cause.
Common Causes of P2173
- •Vacuum or intake air leak
- •Throttle plate not closing fully
- •Dirty throttle body
- •Failing throttle actuator
- •MAF sensor inaccuracy
P2173 on Jeep by Model
Jeep Grand Cherokee(1 issue)
- Electronic Throttle Control (ETC) Warning Light and Throttle Body Failure Causing Limp Mode (3.6L Pentastar)2011-2022
The amber lightning-bolt-in-parentheses 'Electronic Throttle Control' (ETC) warning is one of the most frequently reported faults on Pentastar-era Grand Cherokees. A contaminated or worn electronic throttle body, a failing throttle position sensor, or a corroded throttle-body connector causes the PCM to drop the engine into a reduced-power 'limp' state, with sudden loss of acceleration, surging, rough idle, or stalling. Owners frequently report the light clearing temporarily after a restart, then returning. Some cases are actually triggered by an out-of-range oil-temperature sensor or a stuck thermostat rather than the throttle body itself, so diagnosis before parts replacement is important.
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View P2173 across all makes →Frequently Asked Questions
What does P2173 mean on Jeep?▼
P2173 stands for "Throttle Actuator Control System - High Air Flow Detected." The PCM detected sustained higher airflow than expected for the commanded throttle position, indicating the throttle is allowing more air than commanded or there is an unmetered air leak. On Jeep specifically, this code is documented across 1 model.
What causes P2173 on Jeep vehicles?▼
Common causes on Jeep: Vacuum or intake air leak, Throttle plate not closing fully, Dirty throttle body, Failing throttle actuator, MAF sensor inaccuracy. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2173 on a Jeep?▼
Repair costs on Jeep range from $150 to $650, depending on the specific model and root cause.
Which Jeep models have P2173 documented?▼
Au7o has documented P2173 on 1 Jeep model: Grand Cherokee.