Powertrain
generic / SAE
P0784
4-5 Shift Malfunction
The TCM detects a fault during the 4-to-5 upshift on transmissions equipped with five or more forward gears.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number7 / 84
Possible causes
- Shift solenoid faulty high
- 4-5 clutch slipping 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: 400–3000 €
- Estimated time: 2–10 h
- Component: shift solenoid
- Component: transmission clutch pack
- Component: valve body
- MIL / check engine light
Sources
References
sae:J2012