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Code P0758

Quick reference

P0758 at a glance

Plain-language meaning
This code means there's a problem with a part in your car that helps it change gears. It's like when a toy robot can't move its arms because a wire is loose.
Urgency
Moderate – It is advisable to address this issue promptly to avoid further transmission damage.
Difficulty
Moderate
System
Transmission Control System
Tools mentioned
OBD-II scanner, Multimeter, Basic hand tools

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means there's a problem with a part in your car that helps it change gears. It's like when a toy robot can't move its arms because a wire is loose.

Explanation

The P0758 code indicates an electrical issue with the shift solenoid B, which is responsible for controlling gear shifts in the transmission.

Technical description

The shift solenoid B is an electromechanical valve that controls the flow of transmission fluid in an automatic transmission. It helps the transmission change gears. The P0758 code is triggered when the Powertrain Control Module (PCM) detects an electrical fault in the solenoid circuit.

Symptoms

• Check Engine Light is on

• Transmission may not shift properly

• Vehicle may enter 'limp' mode

Common Causes

• Faulty shift solenoid B

• Open or shorted wiring in the shift solenoid B circuit

• Poor electrical connection in the shift solenoid B circuit

Glossary

Shift Solenoid: An electromechanical valve used to control the flow of transmission fluid.

PCM: Powertrain Control Module, the computer that controls engine and transmission functions.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connectors related to shift solenoid B.

• Test the shift solenoid B for proper operation.

Repair procedures

• Replace the faulty shift solenoid B.

• Repair or replace damaged wiring or connectors.

• Clear the code and test drive to verify the repair.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Honda Accord

• Ford F-150

Preventive measures

• Regularly inspect transmission fluid levels.

• Perform routine transmission maintenance.

• Check for any transmission leaks.

Error code type

Transmission Control System

User experience recommendations

• Avoid driving the vehicle until the issue is resolved.

• Consult a professional mechanic for an accurate diagnosis.

Warranty information

Transmission components may be covered under the vehicle's powertrain warranty. Check with your manufacturer.

Historical data

This code has been associated with electrical issues in automatic transmissions since the introduction of OBD-II systems in the mid-1990s.

Urgency level

Moderate – It is advisable to address this issue promptly to avoid further transmission damage.

Testing conditions

• Vehicle at operating temperature

• Transmission in drive

Component location

Shift solenoid B is located inside the transmission, typically accessible by removing the transmission pan.

FAQs

Q: Can I drive my car with a P0758 code?
A: It's not recommended to drive with this code as it can cause transmission issues and unsafe driving conditions.

Q: How do I reset the P0758 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, the code should not return.

Optional diagnostic gear

Tools that may help diagnose P0758

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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