P2135 on NISSAN ALTIMA — Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation

Q: "What does P2135 mean on a NISSAN ALTIMA?"

"P2135 indicates: Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation. This is a powertrain code. 2 NISSAN ALTIMA owners have reported this to NHTSA."

Q: "What are the most common causes of P2135 on NISSAN ALTIMA?"

"Based on 2 NHTSA reports, the most commonly cited components are: Engine And Engine Cooling, Electrical System. These percentages are based on the component field in owner complaints."

Q: "Is P2135 serious on my NISSAN ALTIMA?"

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

Q: "What should I do if my NISSAN ALTIMA shows P2135?"

"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 P2135 Means on Your NISSAN ALTIMA

P2135 is a diagnostic trouble code indicating: Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 NISSAN ALTIMA owners have reported this issue to NHTSA across model years 2005-2008. Most reports come from the 2005, 2008 model years. The most commonly reported component is Engine And Engine Cooling (50.0% of reports).

Real NISSAN ALTIMA Owner Reports

Source: NHTSA Complaints Database

"2005 nissan altima - when going up a grade the vehicle dies. this has happened a number of times on tioga pass, on the bay bridge, on hwy 46 in the fog, on the 580 ect."

— 2005 NISSAN ALTIMA owner · ENGINE AND ENGINE COOLING · Filed 01/04/2010

"I have been experiencing recurring issues involving the gas pedal failing to work in my 2008 nissan altima. whether on the highway, at a stop sign, or merging onto a highway the gas pedal will unexpectedly fail to accelerate the vehicle."

— 2008 NISSAN ALTIMA owner · ELECTRICAL SYSTEM · Filed 03/01/2016

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

📊 Complaint Trend by Model Year

1

'05

1

'08

Common Causes on NISSAN ALTIMA

Based on NHTSA complaint component analysis for this vehicle.

ENGINE and ENGINE COOLING 50%

ELECTRICAL 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 P2135 mean on a NISSAN ALTIMA? ▾

P2135 indicates: Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation. This is a powertrain code. 2 NISSAN ALTIMA owners have reported this to NHTSA.

What are the most common causes of P2135 on NISSAN ALTIMA? ▾

Based on 2 NHTSA reports, the most commonly cited components are: Engine And Engine Cooling, Electrical System. These percentages are based on the component field in owner complaints.

Is P2135 serious on my NISSAN ALTIMA? ▾

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

What should I do if my NISSAN ALTIMA shows P2135? ▾

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.