OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

P075B

Shift Solenoid G Performance/Stuck Off

Shift solenoid G is electrically intact, but its hydraulic effect is missing — when commanded on, the gear it should engage does not lock up. Either the solenoid is mechanically stuck closed, the valve body bore is worn, or hydraulic pressure does not reach the clutch pack.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number7 / 5B

Possible causes

  • Solenoid stuck closed by debris in the ATF high
  • Worn valve body bore leaking pressure medium
  • Old, contaminated transmission fluid medium

Symptoms

  • Check engine or transmission warning light on
  • Harsh, delayed, or missing shifts
  • Possible limp mode (locked in one gear)
  • Slipping or shuddering during gear changes

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 400–2500 €
  • Estimated time: 2–8 h
  • Component: shift solenoid g
  • Component: valve body
  • Component: clutch pack
  • MIL / check engine light

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication