AutoCodes – Generic – P0758

P0758 Code - Shift Solenoid 'B' Electrical

Quick Answer

Shift solenoid valve 'B' is turned ON or OFF by the Transmission Control Module (TCM) in response to signals sent from the park/neutral position (PNP) switch, vehicle speed and Engine Control Module (ECM) (throttle opening). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'B' valve. 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 indicates Shift Solenoid 'B' Electrical.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty shift solenoid 'B' valve.
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.

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Code Popularity 81,230

How popular is this code, among other codes? Medium

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0758 Description

OBDII Code P0758 - Shift Solenoid 'B' Electrical - AutoCodes.com — P0758 Code - Shift Solenoid 'B' Electrical

What does this mean?

What are the Possible Causes of the DTC P0758?

Low transmission fluid level
Dirty transmission fluid
Faulty shift solenoid 'B' valve
Shift solenoid 'B' valve harness or connectors
Shift solenoid 'B' valve circuit is open or shorted

How to Fix the DTC P0758?

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 P0758 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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Need Help with the Code?

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Information for Specific Makes

P0758 Acura — Shift Solenoid 'B' Circuit Fault
P0758 Audi — Shift Solenoid 'B' Electrical
P0758 BMW — Shift Solenoid 'B' Circuit Continuity
P0758 Buick — 2-3 Shift Solenoid Circuit Electrical
P0758 Cadillac — 2-3 Shift Solenoid Circuit Electrical
P0758 Chevrolet — 2-3 Shift Solenoid Circuit Electrical
P0758 Chrysler — 2-3 Shift Solenoid Circuit Fault
P0758 Dodge — 2-3 Shift Solenoid Circuit Fault
P0758 Ford — Shift Solenoid 2 Circuit
P0758 GMC — 2-3 Shift Solenoid Circuit Electrical
P0758 Honda — Shift Solenoid 'B' Circuit Fault
P0758 Isuzu — 2-3 Shift Solenoid Fault
P0758 Jeep — 2-3 Shift Solenoid Circuit Fault
P0758 KIA — Shift Solenoid 'B' Electrical Fault
P0758 Lexus — Shift Solenoid 'B' Electrical Malfunction
P0758 Mazda — Shift Solenoid 'B' Malfunction
P0758 Mercedes-Benz — Shift Solenoid 'B' Electrical
P0758 MINI — Shift Solenoid 'B' Circuit Continuity
P0758 Mitsubishi — Shift Solenoid 'B' Malfunction
P0758 Oldsmobile — 2-3 Shift Solenoid Circuit Electrical
P0758 Pontiac — 2-3 Shift Solenoid Circuit Electrical
P0758 Saturn — 2-3 Shift Solenoid Circuit Electrical
P0758 Subaru — Shift Solenoid 'B' Electrical
P0758 Suzuki — Shift Solenoid 'B' Electrical Malfunction
P0758 Toyota — Shift Solenoid 'B' Electrical Malfunction
P0758 Volkswagen — Shift Solenoid 'B' Electrical

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 Code

No Frequently Asked Questions about P0758 Code found.

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Carlos
Date: December 27, 2012 at 3:03 am

When Eng. is cold transmission shifts normal, after a while running I lost over drive and first in automatic had to shift manually to move from a stop position , only second and third gear was working ,I hook up a diagnostic computer and code p0758 pop up.

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Jeremiah Gard
Date: June 18, 2014 at 2:38 pm

When driving my g6 it goes to shift into 4th and then it acts like it's in neutral. From reverse to drive it shifts hard and it doesn't always happen. Wtf, somebody help pls

Reply to Comment
OBDIITech
Date: July 2, 2014 at 12:22 am

Start by checking the transmission fluid level and condition. Add fluid if necessary. If fluid level looks very dark and smells burnt, then you need to have a transmission specialist inspect the transmission, you could have a bad transmission.

Reply to Comment
Troy
Date: October 4, 2025 at 2:48 pm

How do you put power to shift sensor throw harness

Reply to Comment
- OBDIITech
  Date: October 5, 2025 at 12:40 pm
  
  The shift solenoid isn’t something you normally power up directly through the harness. It’s controlled by the transmission control module (or PCM), which sends voltage and ground signals based on gear selection and driving conditions.
  
  If you’re trying to test the solenoid, the safer way is to use a wiring diagram and a multimeter. You can check for proper voltage from the PCM connector with the key on, or measure resistance of the solenoid through the transmission connector. Applying power directly can damage the solenoid or PCM if polarity or voltage is wrong.
  
  If you suspect the solenoid is bad, it’s better to confirm by checking resistance specs and continuity through the harness rather than powering it manually.
  
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