P0758: Shift Solenoid B Electrical

What does P0758 mean?

An electrical problem is detected in shift solenoid B. Loss of feed, an open winding, or a circuit short can stop the controller from making the intended shift changes.

Generic OBD-II definition: Shift Solenoid B Electrical. Confirm applicability in your vehicle service information.

Common causes

• Failed solenoid B winding
• Open or shorted B control wiring
• Loose or contaminated connector

Symptoms

• Harsh, missing, or incorrect shifts
• Limp mode
• Possible slipping or transmission overheating

Diagnostic focus

If A and B both have electrical codes, inspect common power and the main case connector. Multiple codes can share one supply fault rather than several failed solenoids.

Can I keep driving with P0758?

Severity: Medium Avoid towing, steep loads, and prolonged driving until diagnosed. Stop and arrange recovery if the transmission slips, loses drive, overheats, or bangs into gear; driving through slip can cause further damage.

If the check engine light is flashing or the car runs badly, stop driving and have it checked.

Typical fixes

• Inspect the B circuit and transmission plug
• Verify supply and solenoid resistance
• Repair the electrical fault and recheck shifting

Sources & review

• OBD-Codes.com: P0758
• TroubleCodes.net: generic code definitions

Definitions and diagnostic background checked 2026-11-06. Generic guidance, not a substitute for the service procedure for your exact year, engine, and transmission.