P0385 Acura Code - Crankshaft Position Sensor 'B' No Signal
Quick Answer
The Crankshaft position sensor also known as the crank position sensor is an electronic device used in an engine to record the rate at which the crankshaft is spinning. Common causes include Faulty crankshaft position sensor, Crankshaft position sensor harness is open or shorted, Crankshaft position 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
- P0385 Acura indicates Crankshaft Position Sensor 'B' No Signal.
- Common causes
- Common causes include Faulty crankshaft position sensor, Crankshaft position sensor harness is open or shorted, Crankshaft position 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 P0385 Acura Description
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.
What are the Possible Causes of the DTC P0385 Acura?
- Faulty crankshaft position sensor
- Crankshaft position sensor harness is open or shorted
- Crankshaft position sensor circuit poor electrical connection
- Signal plate may be damage
- Starter motor may be faulty
- Starting system circuit
- Dead or weak battery
How to Fix the DTC P0385 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0385 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.
Need more information about the P0385 Acura code?
Need more information on how to fix the P0385 Acura code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0385 Acura code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0385 Acura Code
1. What are the common symptoms of OBDII code P0385 in an Acura vehicle?
The common symptoms of OBDII code P0385 in an Acura include engine stalling, difficulty starting the engine, and poor acceleration.
2. What is the most common cause of OBDII code P0385 in an Acura?
The most common cause of OBDII code P0385 in an Acura is a faulty crankshaft position sensor 'B' that is not sending a signal to the engine control module.
3. How does a faulty crankshaft position sensor 'B' cause OBDII code P0385 in an Acura?
A faulty crankshaft position sensor 'B' fails to send accurate data to the engine control module, which can disrupt the engine's timing and lead to the triggering of OBDII code P0385.
4. Can a bad crankshaft position sensor 'B' be repaired, or does it need to be replaced?
In most cases, a bad crankshaft position sensor 'B' in an Acura needs to be replaced to resolve OBDII code P0385. Repairing the sensor is not recommended due to its critical role in engine operation.
5. How can I diagnose a faulty crankshaft position sensor 'B' causing OBDII code P0385 in my Acura?
Diagnosing a faulty crankshaft position sensor 'B' involves using a scan tool to monitor the sensor's signal output while cranking the engine. If the sensor fails to provide a signal, it is likely faulty.
6. Are there any other potential causes of OBDII code P0385 in an Acura besides a faulty crankshaft position sensor 'B'?
Yes, other potential causes of OBDII code P0385 in an Acura include damaged wiring or connectors related to the sensor, a failed engine control module, or issues with the sensor's reluctor ring.
7. Can driving with OBDII code P0385 in an Acura cause further damage to the vehicle?
Continuing to drive with OBDII code P0385 in an Acura can potentially lead to further engine performance issues, increased fuel consumption, and even engine damage if left unresolved for an extended period.
8. Is it safe to clear OBDII code P0385 in an Acura using a scan tool without addressing the underlying issue?
Clearing OBDII code P0385 without fixing the root cause, such as a faulty crankshaft position sensor 'B', is not recommended. The issue will likely resurface, and the vehicle may continue to experience problems.
9. How long does it typically take to replace a faulty crankshaft position sensor 'B' in an Acura to resolve OBDII code P0385?
Replacing a faulty crankshaft position sensor 'B' in an Acura to address OBDII code P0385 usually takes about 1-2 hours, depending on the vehicle model and the sensor's accessibility.
10. Can I replace the crankshaft position sensor 'B' in my Acura myself, or should I seek professional assistance?
Replacing the crankshaft position sensor 'B' in an Acura requires moderate mechanical skill and knowledge. If you are comfortable working on your vehicle and have the necessary tools, you can attempt the replacement yourself. Otherwise, it is recommended to seek professional assistance to ensure the job is done correctly.
Discuss the causes and fixes for P0385 Acura OBDII Code
Code P0385 Acura comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
