P2127: Throttle/Pedal Position Sensor/Switch E Circuit Low
What Does P2127 Mean?
P2127 is a diagnostic trouble code indicating: Throttle/Pedal Position Sensor/Switch E Circuit Low. This code relates to the powertrain system. It has been reported in NHTSA complaints across 8 different vehicle models.
Symptoms of P2127
- ⚠️ Check engine light illuminated
- ⚠️ Vehicle won't start
- ⚠️ Traction control system activated
- ⚠️ Vehicle enters limp/reduced power mode
- ⚠️ Failure to accelerate
Common Causes
- 🔍 Faulty oxygen sensor
- 🔍 Throttle body or throttle position sensor issue
- 🔍 Sensor or control module malfunction
P2127 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"While driving received recurring check engine light for p2127/p2138 code. Has been to Quirk Chevrolet twice previously for same issue, drives fine for a week or two and light comes back. Third service appointment scheduled for Monday 6/7/21. Recurring issue has made vehicle unusable while effected a"
— Chevrolet Malibu owner, 06/05/2021
"CRUISING TO WORK ON I-93 IN CONCORD, NH TRAVELING AROUND 65 MPH. I WENT OUT INTO THE PASSING LANE AND THE CAR TOTALLY LOST POWER. THE "REDUCE ENGINE POWER LIGHT" CAME ON AND VEHICLE WOULD ONLY GO 25-30 MPH. THANKFULLY THERE WASN'T A VEHICLE BEHIND ME. I WOULD HAVE BEEN "KILLED". DROPPED VEHICLE TO"
— Chevrolet Malibu owner, 01/22/2020
"CRUISING TO WORK ON I-93 IN CONCORD, NH TRAVELING AROUND 70 MPH AND IT JUST LOST POWER AGAIN!!! THE "REDUCE ENGINE POWER LIGHT" CAME ON AND VEHICLE WOULD ONLY GO 25-30 MPH. THANKFULLY THERE WASN'T A VEHICLE BEHIND ME. I WOULD HAVE BEEN "KILLED". DROPPED VEHICLE TO CHEVY DEALER. THEY FOUND P2127 F"
— Chevrolet Malibu owner, 03/16/2020
Source: NHTSA Complaints Database
Most Reported Vehicles for P2127
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | CHEVROLET MALIBU | |
| 2 | CHEVROLET IMPALA | |
| 3 | KIA SORENTO | |
| 4 | CHEVROLET CAMARO | |
| 5 | DODGE DART | |
| 6 | JEEP WRANGLER | |
| 7 | JEEP PATRIOT | |
| 8 | VOLKSWAGEN JETTA |
P2127 Reports by Vehicle
Detailed NHTSA complaint analysis for each vehicle model.
Frequently Asked Questions
Can I drive with this code?
Will this code clear itself?
How do I find the exact cause?
What To Do Next
Possible Fixes
- 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
- 🔧 Test the relevant sensor(s) with a multimeter before replacing
- 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.