Engine-CodesAcura – P0758 Acura

P0758 Acura Code - Shift Solenoid 'B' Circuit Fault

Quick Answer

The P0758 diagnostic trouble code (DTC) for Acura vehicles indicates a Shift Solenoid 'B' Circuit Fault. Common causes include Faulty shift solenoid 'B', Damaged wiring or connectors in the circuit, Low transmission fluid levels. 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
P0758 Acura indicates Shift Solenoid 'B' Circuit Fault.
Common causes
Common causes include Faulty shift solenoid 'B', Damaged wiring or connectors in the circuit, Low transmission fluid levels.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0758 Acura Description

The P0758 diagnostic trouble code (DTC) for Acura vehicles indicates a Shift Solenoid 'B' Circuit Fault. This code specifically refers to an electrical issue within the transmission system, involving the shift solenoid 'B'. The shift solenoid 'B' is responsible for controlling the flow of transmission fluid to facilitate gear changes. When this solenoid malfunctions or the circuit has a fault, it can lead to erratic shifting behavior, transmission slippage, or even a complete inability to shift gears.

OBDII Code P0758 Acura - Shift Solenoid 'B' Circuit Fault
P0758 Acura Code - Shift Solenoid 'B' Circuit Fault

Common Causes of P0758 Acura

  1. Faulty shift solenoid 'B'
  2. Damaged wiring or connectors in the circuit
  3. Low transmission fluid levels
  4. Malfunctioning transmission control module (TCM)
  5. Internal transmission issues

Symptoms of P0758 Acura

  1. Erratic or harsh shifting
  2. Delayed engagement when shifting gears
  3. Transmission slipping
  4. Inability to shift gears
  5. Illumination of the Check Engine Light

How to Fix P0758 Acura

  1. Begin by diagnosing the specific cause of the P0758 code using a scan tool to identify the fault in the transmission system.
  2. Inspect the shift solenoid 'B' for any signs of damage or wear. Replace the solenoid if necessary.
  3. Check the wiring and connectors in the circuit for any breaks, corrosion, or loose connections. Repair or replace as needed.
  4. Ensure that the transmission fluid levels are adequate and top up if low. Inspect the fluid for signs of contamination or debris.
  5. If the issue persists after these steps, consider seeking professional assistance from a qualified mechanic or transmission specialist to perform a more in-depth diagnosis and repair.

Cost to Fix P0758 Acura

The typical repair costs for addressing a Shift Solenoid 'B' Circuit Fault can vary depending on the specific cause of the issue and the extent of the repair needed. In general, the cost of replacing a shift solenoid 'B' can range from $150 to $300, including parts and labor. However, if additional repairs or diagnostic work are required, the total cost could increase.

When is the Code Detected?

The P0758 code is detected when the gear required by the ECM does not match the actual gear when vehicle is driven.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0758 Acura Code

1. What are the common symptoms of OBDII code P0758 (Acura) Shift Solenoid 'B' Circuit Fault?

The common symptoms include harsh shifting, delayed shifting, transmission slipping, and the transmission staying in one gear.

2. What can cause the Shift Solenoid 'B' Circuit Fault (P0758) in an Acura?

The most common causes of this code include a faulty shift solenoid, low transmission fluid level, dirty transmission fluid, or wiring/connectivity issues.

3. How serious is the P0758 code in an Acura?

The P0758 code should be addressed promptly to prevent further damage to the transmission. Ignoring this code can lead to more severe transmission issues and potential safety hazards on the road.

4. Can I continue driving my Acura with the P0758 code?

It is not recommended to continue driving your Acura with the P0758 code present, as it can cause further damage to the transmission. It is best to have the issue diagnosed and repaired as soon as possible.

5. How do I diagnose the Shift Solenoid 'B' Circuit Fault in my Acura?

Diagnosing the P0758 code typically involves checking the transmission fluid level and condition, inspecting the wiring and connectors related to the shift solenoid, and conducting a scan tool test to monitor the solenoid's operation.

6. Is it possible to repair the P0758 code in an Acura at home?

While some DIY enthusiasts may attempt to address the P0758 code at home, it is recommended to have a professional mechanic diagnose and repair the issue to ensure proper resolution and prevent further damage.

7. How much does it cost to fix the Shift Solenoid 'B' Circuit Fault in an Acura?

The cost of repairing the P0758 code can vary depending on the underlying cause, parts needed, and labor costs. It is advisable to obtain quotes from reputable repair shops for an accurate estimate.

8. Can a faulty shift solenoid cause other transmission issues in an Acura?

Yes, a faulty shift solenoid can cause a range of transmission issues beyond the P0758 code, such as erratic shifting, gear slippage, and transmission overheating. Addressing the solenoid fault promptly can prevent further damage.

9. How long does it take to fix the P0758 code in an Acura?

The repair time for the P0758 code can vary depending on the specific cause of the fault and the complexity of the repair. In some cases, the issue can be resolved within a few hours, while more extensive repairs may take longer.

10. Can a transmission flush help resolve the P0758 code in an Acura?

In some cases, performing a transmission fluid flush and filter replacement may help resolve the P0758 code if the issue is related to dirty or contaminated transmission fluid. However, it is essential to address any underlying shift solenoid or wiring issues as well.

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