P0340 on JEEP WRANGLER — Camshaft Position Sensor A Circuit Bank 1 or Single Sensor

Q: "What does P0340 mean on a JEEP WRANGLER?"

"P0340 indicates: Camshaft Position Sensor A Circuit Bank 1 or Single Sensor. This is a ignition system code. 2 JEEP WRANGLER owners have reported this to NHTSA."

Q: "What are the most common causes of P0340 on JEEP WRANGLER?"

"Based on 2 NHTSA reports, the most commonly cited components are: Engine, Steering,Vehicle Speed Control,Engine. These percentages are based on the component field in owner complaints."

Q: "Is P0340 serious on my JEEP WRANGLER?"

"Of 2 NHTSA reports for this code on JEEP WRANGLER, 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 WRANGLER shows P0340?"

"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 P0340 Means on Your JEEP WRANGLER

P0340 is a diagnostic trouble code indicating: Camshaft Position Sensor A Circuit Bank 1 or Single Sensor. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

2 JEEP WRANGLER owners have reported this issue to NHTSA across model years 2005-2015. Most reports come from the 2005, 2015 model years. The most commonly reported component is Engine (50.0% of reports).

Real JEEP WRANGLER Owner Reports

Source: NHTSA Complaints Database

"Engine codes p0340 and p0344 chrysler campaign e05 replace opda and camshaft - my manufacture date is june 2005, there is 113k on the engine, when the weather is cold (40 f or below) the engine has long start issues, there is play in the opda enough to put the engine in limp mode not revving past 25"

— 2005 JEEP WRANGLER owner · ENGINE · Filed 09/17/2016

"Between the dates of 3/20 and 8/1 my 2015 jeep wrangler unlimited (4dr, 4x4) has been experiencing intermittent cel p0340 while pulling a grade. when the cel occur the vehicle loses significant power and is unable to maintain speed. the traction control system lights come on indicating an error."

— 2015 JEEP WRANGLER owner · STEERING,VEHICLE SPEED CONTROL,ENGINE · Filed 08/01/2015

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

📊 Complaint Trend by Model Year

1

'05

1

'15

Common Causes on JEEP WRANGLER

Based on NHTSA complaint component analysis for this vehicle.

ENGINE 50%

STEERING,VEHICLE SPEED CONTROL,ENGINE 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 P0340 mean on a JEEP WRANGLER? ▾

P0340 indicates: Camshaft Position Sensor A Circuit Bank 1 or Single Sensor. This is a ignition system code. 2 JEEP WRANGLER owners have reported this to NHTSA.

What are the most common causes of P0340 on JEEP WRANGLER? ▾

Based on 2 NHTSA reports, the most commonly cited components are: Engine, Steering,Vehicle Speed Control,Engine. These percentages are based on the component field in owner complaints.

Is P0340 serious on my JEEP WRANGLER? ▾

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

What should I do if my JEEP WRANGLER shows P0340? ▾

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.