Error code

OBD2 P0758

OBD2P0758
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Shift Solenoid 'B' Electrical.

Severity

moderateCan drive but may experience shifting issues and high RPMs.

Summary

P0758 indicates an electrical issue with Shift Solenoid B in your transmission's valve body.

Symptoms

  • Not shifting
  • Drivability issues
  • Harsh shifts
  • Erratic shifts
  • High engine RPMs

Common Causes

  • Low transmission fluid level
  • Dirty transmission fluid
  • Shift solenoid defective
  • Shift solenoid circuit open/short
  • Bad grounds
  • Corroded connections or pins
  • Wiring issue (corrosion, chafed, melted)

Diagnosis

  1. Check transmission fluid level and condition.
  2. Inspect shift solenoid circuit for open/short circuits or corrosion.
  3. Verify electrical connections are clean and secure.

Fixes

  • Replace faulty shift solenoid if necessary.

FAQ

What should I do first when P0758 appears?

Start by checking the transmission fluid level and condition, then inspect electrical connections for any issues.

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.