P0720 Dodge Code - Output Speed Sensor Circuit Malfunction
Quick Answer
The P0720 diagnostic trouble code indicates a malfunction in the output speed sensor circuit of a Dodge vehicle. Common causes include Faulty output speed sensor, Damaged or corroded wiring/connectors, Issues with the transmission control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0720 Dodge indicates Output Speed Sensor Circuit Malfunction.
- Common causes
- Common causes include Faulty output speed sensor, Damaged or corroded wiring/connectors, Issues with the transmission control module.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0720 Dodge Description
The P0720 diagnostic trouble code indicates a malfunction in the output speed sensor circuit of a Dodge vehicle. The output speed sensor is responsible for monitoring the rotational speed of the transmission output shaft, providing crucial data for the vehicle's transmission control module. When this sensor fails or malfunctions, it can lead to issues with shifting, fuel efficiency, and overall drivability of the vehicle.
Common Causes of P0720 Dodge
- Faulty output speed sensor
- Damaged or corroded wiring/connectors
- Issues with the transmission control module
- Mechanical problems with the transmission
- Electrical interference or shorts
Symptoms of P0720 Dodge
- Delayed or harsh shifting
- Incorrect or erratic speedometer readings
- Check Engine Light illuminated
- Loss of power or acceleration
- Transmission slipping
How to Fix P0720 Dodge
- Begin by diagnosing the specific cause of the output speed sensor circuit malfunction using a scan tool.
- Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
- Test the output speed sensor itself to determine if it is faulty and replace if needed.
- Check the transmission control module for any issues and address as required.
- Clear the trouble code from the vehicle's computer and test drive to ensure proper operation.
Cost to Fix P0720 Dodge
The cost of repairing a P0720 code can vary depending on the specific cause of the issue. In general, replacing an output speed sensor can range from $100 to $250, including parts and labor. If additional repairs or diagnostics are needed, the total cost may increase. It is advisable to consult with a professional mechanic for a more accurate estimate based on your vehicle's make and model. Labor rates at auto repair shops can vary, so it's recommended to inquire about pricing before proceeding with the repair.
When is the Code Detected?
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Frequently Asked Questions about P0720 Dodge Code
1. What does the OBDII code P0720 mean for a Dodge vehicle?
P0720 indicates a malfunction in the output speed sensor circuit, which monitors the rotational speed of the transmission's output shaft.
2. What are the common symptoms of the P0720 code in Dodge vehicles?
Symptoms may include erratic shifting, the transmission staying in one gear, the speedometer not working, and the activation of the check engine light.
3. What causes the P0720 code to appear on a Dodge?
Common causes include a faulty output speed sensor, damaged wiring or connectors, a malfunctioning PCM (Powertrain Control Module), or issues within the transmission.
4. Can you still drive a Dodge with the P0720 code?
While it may be possible to drive, it’s not recommended as the transmission may not shift correctly, which could lead to further damage or unsafe driving conditions.
5. How do you diagnose the P0720 code on a Dodge?
Diagnosis typically involves scanning for codes, visually inspecting the output speed sensor and wiring, testing the sensor with a multimeter, and checking the PCM for faults.
6. How is the P0720 code fixed on a Dodge?
Repairs may include replacing the output speed sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming or replacing the PCM.
7. Where is the output speed sensor located on a Dodge vehicle?
The output speed sensor is usually located on the transmission, near the output shaft or tail housing.
8. How much does it cost to repair the P0720 code on a Dodge?
Repair costs vary but typically range from $150 to $400, depending on whether the issue is with the sensor, wiring, or PCM.
9. Can a P0720 code cause transmission failure in a Dodge?
If left unresolved, the code can lead to improper shifting and potential long-term damage to the transmission.
10. Do you need to reprogram the PCM after fixing the P0720 code on a Dodge?
In some cases, PCM reprogramming may be required if the root cause involves a software issue or the replacement of the PCM itself.
Discuss the causes and fixes for P0720 Dodge OBDII Code
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i have a 2004 dodge stratus and I am having this code (P0720) and also P0700, P0731 when I had the check engine codes tested. The car's speedometer jumps up while stopped and running idle, the transmission shifts late and the battery doesn't charge. I was told that when the engine reaches a certain RPM, that it stops charging. can someone help me?
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You may have a faulty Output Speed Sensor. The sensor could trigger all the codes you mention.
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Just thought I'd throw this out.. I have a 2001 Ram 1500 5.2V8 with shifting issues. I have the P0720 code set as well as P0123, P0133, P0505 and P1281. My only complaint is shifting issues. The truck drives exceptionally well when cold but when it warms up the shifting becomes an issue. I have noted 3 shifting failure modes: won't shift into first at a stop (dies oddly if not shifted out of drive), won't shift out of first after a stop (only fix is turn the truck off, stab the throttle several times and restart the truck), and third is an odd variation on normal shifting that requires me to achieve a higher than normal road speed in order to shift into the next gear. Other than that, I don't have any complaints as the truck is very reliable. Any ideas?
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The P0123, P0133, P0505 and P1281 code are engine related code and neither one should cause the symptoms you got.
You should start by checking the transmission fluid level and condition, dirty or low fluid could trigger the P0720 code. If possible change the fluid and filter. If the problem persist, then you may need to replace the Output Shaft Speed Sensor. -
the story gets much more convoluted... the fix action for the above stated problems was to replace the speed sensor in the transmission, replace the coolant sensor on the engine (not the one that drives the gauge, the other one) and to replace the Throttle Position Sensor. The combination of all three made my transmission shifting problems vanish. The filter and fluid had already been replaced by the time I posted my original question. ...and now the convoluted part, after erasing the shifting problems, a few hundred miles later I experienced a "pop" sound and immediately my ability to accelerate was compromised. I gained a squealing sound when sitting in drive at a stop light and while accelerating. Once up to speed, the effects were muted... except that my truck began sliding into overdrive instead of shifting smartly. Time to sell it.
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