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P2122 on JEEP CHEROKEE

Q: "What does P2122 mean on a JEEP CHEROKEE?"

"P2122 indicates: Throttle/Pedal Position Sensor/Switch D Circuit Low. This is a powertrain code. 2 JEEP CHEROKEE owners have reported this to NHTSA."

Q: "What are the most common causes of P2122 on JEEP CHEROKEE?"

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

Q: "Is P2122 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 P2122?"

"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."

Throttle/Pedal Position Sensor/Switch D Circuit Low

NHTSA Reports

Severity

Medium

Most Affected

2018, 2019

Crashes / Fires

0 / 0

Source: NHTSA Complaints Database · SAE J2012

Last reviewed: Jan 1, 0001 Last updated: Jan 1, 0001

Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.

Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

What P2122 Means on Your JEEP CHEROKEE

P2122 is a diagnostic trouble code indicating: Throttle/Pedal Position Sensor/Switch D Circuit Low. This code relates to the powertrain 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

"The P2122 OBD-II trouble, or fault, code means that the vehicle's on-board computer has detected low voltage in the throttle position sensor (TPS), which is usually below 0.17 volts. The battery is also at 8.3 volts indicating a potential short somewhere and potentially a faulty alternator."

— 2019 JEEP CHEROKEE owner · POWER TRAIN,VEHICLE SPEED CONTROL · Filed 09/17/2021

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

📊 Complaint Trend by Model Year

'18

'19

Common Causes on JEEP CHEROKEE

Based on NHTSA complaint component analysis for this vehicle.

ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM 50%

POWER TRAIN,VEHICLE SPEED CONTROL 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 P2122 mean on a JEEP CHEROKEE? ▾

P2122 indicates: Throttle/Pedal Position Sensor/Switch D Circuit Low. This is a powertrain code. 2 JEEP CHEROKEE owners have reported this to NHTSA.

What are the most common causes of P2122 on JEEP CHEROKEE? ▾

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

Is P2122 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 P2122? ▾

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.