OBD2 Error Code P0748: How to Fix It

Q: Can I drive with P0748 error code?

You should not drive with P0748 as it indicates a high-severity transmission problem. Continued driving can cause complete transmission failure, harsh shifting, or getting stranded. Have the vehicle towed to prevent further damage.

Q: How much does it cost to fix P0748?

Repair costs range from $150-300 for a single solenoid replacement to $500-1200 for complete solenoid pack replacement including labor. If internal transmission damage occurred, rebuild costs can exceed $2000-4000.

Q: What causes pressure control solenoid A to fail?

Common causes include contaminated transmission fluid, electrical shorts or opens in wiring, TCM failure, internal transmission wear creating debris, and normal wear after high mileage. Poor maintenance is the leading cause.

Q: Will P0748 clear itself?

P0748 will not clear itself as it indicates a hard failure in the solenoid or its control circuit. The code will persist until the underlying electrical or mechanical problem is repaired and codes are manually cleared.

Q: How do I prevent P0748 from happening again?

Regular transmission fluid changes every 30,000-60,000 miles, avoiding overheating, fixing transmission leaks promptly, and addressing shifting problems early can prevent solenoid failures. Use only manufacturer-specified transmission fluid.

Abstract

OBD2 error code P0748 indicates an electrical malfunction in pressure control solenoid A, which regulates hydraulic pressure in your automatic transmission. This high-severity error can cause harsh shifting, transmission slipping, or complete transmission failure if left unaddressed.