P0123 on JEEP CHEROKEE — Throttle/Pedal Position Sensor/Switch A Circuit High

Q: "What does P0123 mean on a JEEP CHEROKEE?"

"P0123 indicates: Throttle/Pedal Position Sensor/Switch A Circuit High. This is a fuel and air metering code. 2 JEEP CHEROKEE owners have reported this to NHTSA."

Q: "What are the most common causes of P0123 on JEEP CHEROKEE?"

"Based on 2 NHTSA reports, the most commonly cited components are: Electrical System,Engine,Fuel/Propulsion System, Power Train,Engine,Fuel/Propulsion System. These percentages are based on the component field in owner complaints."

Q: "Is P0123 serious on my JEEP CHEROKEE?"

"Of 2 NHTSA reports for this code on JEEP CHEROKEE, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic."

Q: "What should I do if my JEEP CHEROKEE shows P0123?"

"1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare."

What P0123 Means on Your JEEP CHEROKEE

P0123 is a diagnostic trouble code indicating: Throttle/Pedal Position Sensor/Switch A Circuit High. This code relates to the fuel and air metering system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 JEEP CHEROKEE owners have reported this issue to NHTSA across model years 2018-2019. Most reports come from the 2018, 2019 model years. The most commonly reported component is Electrical System,Engine,Fuel/Propulsion System (50.0% of reports).

Real JEEP CHEROKEE Owner Reports

Source: NHTSA Complaints Database

"Check engine light came on. Had it diagnosed within 5 minutes. Code P0123 came up. That is the “Throttle/Pedal Position Sensor/Switch “A” Circuit High Input”. Specific part # 5184349AF. It is built into the throttle body, so whole throttle body must be replaced. Vehicle only has 40,000 miles."

— 2019 JEEP CHEROKEE owner · POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM · Filed 07/20/2021

All reports filed by vehicle owners directly with the U.S. Department of Transportation.

📊 Complaint Trend by Model Year

1

'18

1

'19

Common Causes on JEEP CHEROKEE

Based on NHTSA complaint component analysis for this vehicle.

ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM 50%

POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM 50%

What To Do Next

1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.

Frequently Asked Questions

What does P0123 mean on a JEEP CHEROKEE? ▾

P0123 indicates: Throttle/Pedal Position Sensor/Switch A Circuit High. This is a fuel and air metering code. 2 JEEP CHEROKEE owners have reported this to NHTSA.

What are the most common causes of P0123 on JEEP CHEROKEE? ▾

Based on 2 NHTSA reports, the most commonly cited components are: Electrical System,Engine,Fuel/Propulsion System, Power Train,Engine,Fuel/Propulsion System. These percentages are based on the component field in owner complaints.

Is P0123 serious on my JEEP CHEROKEE? ▾

Of 2 NHTSA reports for this code on JEEP CHEROKEE, none involved a crash or fire. However, any diagnostic code should be evaluated by a qualified mechanic.

What should I do if my JEEP CHEROKEE shows P0123? ▾

1) Check for recalls on your VIN at nhtsa.gov/recalls. 2) Get a professional diagnosis — a code alone doesn't identify the exact failed part. 3) Get 2-3 repair estimates to compare.

P0123 on Other Vehicles

→ All codes reported on JEEP CHEROKEE