P1758 Acura Code - Problem in Torque Converter Clutch Solenoid Valve 'B' Circuit
Quick Answer
The torque converter clutch solenoid valve switches the hydraulic circuit to engage/disengage the torque converter clutch. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Torque Converter Clutch Solenoid. 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
- P1758 Acura indicates Problem in Torque Converter Clutch Solenoid Valve 'B' Circuit.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Torque Converter Clutch Solenoid.
- 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 P1758 Acura Description
The Powertrain Control Module (PCM) controls the torque converter clutch solenoid valve. The driver circuit has a diagnostic function that detects and outputs the state of a short or open circuit, and sends a return signal to the PCM. If the return signal during the PCMÂ’s command is not appropriate, the PCM detects a malfunction and stores a DTC.
What are the Possible Causes of the DTC P1758 Acura?
- Low transmission fluid level
- Dirty transmission fluid
- Faulty Torque Converter Clutch Solenoid
- Torque Converter Clutch Solenoid harness is open or shorted
- Torque Converter Clutch Solenoid circuit poor electrical connection
How to Fix the DTC P1758 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 P1758 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 P1758 Acura Code
1. What does the OBDII code P1758 mean on an Acura?
P1758 indicates a problem in the Torque Converter Clutch (TCC) Solenoid Valve 'B' Circuit, meaning the solenoid responsible for controlling the torque converter clutch may be malfunctioning, or there’s an issue with the electrical circuit.
2. What are common symptoms of the P1758 code in an Acura?
Symptoms may include transmission slipping, poor fuel efficiency, difficulty shifting gears, the vehicle stalling at low speeds, and an illuminated Check Engine Light.
3. What causes the P1758 code to be triggered?
Common causes include a faulty TCC solenoid, damaged or corroded wiring or connectors in the circuit, low or dirty transmission fluid, or a failing transmission control module (TCM).
4. How do I diagnose the P1758 code on my Acura?
Diagnose the P1758 code by checking the transmission fluid condition, inspecting the wiring and connectors for damage, testing the TCC solenoid for proper operation, and using a scan tool to monitor transmission data.
5. Can I drive my Acura with the P1758 code present?
While the vehicle may still be drivable, ignoring the P1758 code can lead to serious transmission damage and drivability issues, so it’s best to address the problem promptly.
6. How do I fix the P1758 code on an Acura?
Repairs may include replacing the faulty TCC solenoid, cleaning or repairing damaged wiring or connectors, performing a transmission fluid flush, or replacing the transmission control module if necessary.
7. How much does it cost to fix the P1758 code on an Acura?
Repair costs can vary widely but may range from $200 to $500 for solenoid replacement, while more extensive issues like TCM replacement or transmission repairs can be significantly higher.
8. Can dirty transmission fluid cause the P1758 code?
Yes, dirty or low transmission fluid can cause the TCC solenoid to malfunction, leading to the P1758 code. Regular maintenance can help prevent this issue.
9. Is the P1758 code specific to Acura vehicles?
The P1758 code is not exclusive to Acura but is commonly seen in vehicles with automatic transmissions. However, the exact meaning and diagnostics can vary depending on the manufacturer.
10. Will resetting the Check Engine Light fix the P1758 code?
Resetting the Check Engine Light will not fix the underlying issue causing the P1758 code. Proper diagnosis and repair are required to resolve the problem permanently.
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