Acura P0740 Error Code: How to Fix It

Q: Can I drive my Acura with P0740 code?

You can drive short distances, but avoid extended highway driving. The torque converter won't lock up properly, causing overheating and poor fuel economy. Get it diagnosed and repaired as soon as possible.

Q: How much does it cost to fix P0740 on an Acura?

Repair costs range from $150-300 for solenoid replacement to $2000-4000 for transmission rebuild if internal damage has occurred. Early diagnosis and repair can prevent more expensive problems.

Q: What causes P0740 error code in Acura vehicles?

Common causes include faulty torque converter clutch solenoid, damaged wiring harness, low or contaminated transmission fluid, or internal transmission damage from overheating.

Q: Will P0740 cause transmission to slip?

Yes, P0740 can cause the transmission to feel like it's slipping, especially during highway cruising when the torque converter should be locked up. You may also notice higher RPMs at cruising speeds.

Q: How do I prevent P0740 from happening again?

Regular transmission fluid changes every 30,000-60,000 miles, avoiding aggressive driving that overheats the transmission, and promptly addressing any transmission warning signs can help prevent this code.

Abstract

The Acura P0740 error code indicates a torque converter clutch circuit malfunction in your automatic transmission. This occurs when the transmission control module detects an electrical problem in the torque converter lockup solenoid circuit, which can cause poor fuel economy, transmission slipping, and overheating.