P0720 Acura Code - Output Shaft Speed Sensor Circuit Malfunction
Quick Answer
The Output Shaft (Countershaft) Speed Sensor is attached to the transmission housing to sense countershaft revolutions. Common causes include Faulty Output Shaft (Countershaft) Speed Sensor, Output Shaft Speed Sensor harness is open or shorted, Output Shaft Speed Sensor circuit poor electrical connection. 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 Acura indicates Output Shaft Speed Sensor Circuit Malfunction.
- Common causes
- Common causes include Faulty Output Shaft (Countershaft) Speed Sensor, Output Shaft Speed Sensor harness is open or shorted, Output Shaft Speed Sensor circuit poor electrical connection.
- 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.
Code P0720 Acura Description
What are the Possible Causes of the DTC P0720 Acura?
- Faulty Output Shaft (Countershaft) Speed Sensor
- Output Shaft Speed Sensor harness is open or shorted
- Output Shaft Speed Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0720 Acura?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0720 Acura code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0720 Acura Code
What does the OBDII code P0720 mean on an Acura?
P0720 indicates a malfunction in the output shaft speed sensor circuit, which measures the rotational speed of the transmission's output shaft for proper shifting.
What are the common symptoms of P0720 on an Acura?
Symptoms include erratic or delayed shifting, poor acceleration, decreased fuel efficiency, and the check engine light turning on.
What causes the P0720 code on an Acura?
Common causes include a faulty output shaft speed sensor, damaged wiring or connectors, or a problem with the transmission control module (TCM).
Can I drive my Acura with a P0720 code?
Driving with a P0720 code is not recommended as it may lead to transmission damage or unsafe driving conditions due to erratic shifting.
How do I diagnose a P0720 code on my Acura?
Diagnosis involves checking the output shaft speed sensor, inspecting wiring and connectors for damage, and using a scan tool to monitor sensor readings.
How do I fix the P0720 code on an Acura?
Repairs may include replacing the faulty output shaft speed sensor, repairing damaged wiring or connectors, or reprogramming/replacing the TCM if necessary.
How much does it cost to fix a P0720 code on an Acura?
Costs vary but typically range from $100 to $300 for parts and labor, depending on whether the sensor or wiring needs replacement.
Can a dirty or damaged connector cause a P0720 code on an Acura?
Yes, corrosion or damage to the sensor’s electrical connector can disrupt the circuit and trigger the P0720 code.
Does a P0720 code affect the transmission performance in an Acura?
Yes, a malfunctioning output shaft speed sensor can cause issues like erratic shifting and reduced transmission efficiency.
What tools are needed to diagnose and repair a P0720 code on an Acura?
You’ll need a scan tool, multimeter, and basic hand tools to diagnose and repair the sensor or wiring issues.
Discuss the causes and fixes for P0720 Acura OBDII Code
-
I for one would like to know the location of the output shaft speed sensor on our 2005 Acura MDX?
-
Left side of Engine, top of trans housing close to trans oil filler plug.
Output Shaft (Countershaft) Speed Sensor Replacement:
1. Remove the splash shield.
2. Disconnect the output shaft (countershaft) speed sensor connector, and remove the output shaft (countershaft) speed sensor.
3. Install the new O-ring (A) on the new output shaft (countershaft) speed sensor (B), then install the output shaft (countershaft) speed sensor in the transmission housing.
4. Check the connector for rust, dirt, or oil, then connect the connector securely.
5. Install the splash shield.
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