Failed shift solenoid; Wiring or connector fault; Low or contaminated fluid; Valve body problem.

P0758: Shift Solenoid "B" Electrical

Q: What does P0758 mean?

P0758: Shift Solenoid "B" Electrical. Shift solenoids route fluid in the valve body to select gears. The module has found an electrical fault in the shift solenoid "B" circuit.

Q: Is it safe to drive with P0758?

Severity: High. Limit driving and diagnose promptly. Continued driving can cause damage, stalling or limp mode.

P0758 means Shift Solenoid "B" Electrical. Shift solenoids route fluid in the valve body to select gears. The module has found an electrical fault in the shift solenoid "B" circuit.

CodeP0758

SystemTransmission

SeverityHigh

TypeGeneric powertrain

Can I keep driving? Limit driving and diagnose promptly. Continued driving can cause damage, stalling or limp mode.

Common symptoms

Check engine light on
Stuck in one gear (limp mode)
Harsh or missing shifts
Delayed engagement

Possible causes

Failed shift solenoid
Wiring or connector fault
Low or contaminated fluid
Valve body problem

How to diagnose P0758

Check fluid level and condition first.
Inspect the transmission connector for fluid intrusion.
Measure solenoid resistance and command the solenoid with a scan tool.
Valve body work may be needed if electrical tests pass.

What the code means, digit by digit

PPowertrain0Generic (SAE) code7Sub-system58Specific fault

Generic codes have the same definition on every OBD-II vehicle (petrol cars from model year 1996 in the US, 2001 in the EU; diesels later). Manufacturers can add their own enhanced codes; those are not listed here.

Related codes

General guidance only. Fault codes describe what the engine computer saw, not which part failed: confirm with testing before replacing parts, and follow the vehicle's service information.