U1059: SCP (J1850) Invalid or Missing Data for Transmission / Transaxle / PRNDL
HighNetwork/CommunicationNetwork Communication
What does U1059 mean?
U1059 is a diagnostic trouble code indicating "SCP (J1850) Invalid or Missing Data for Transmission / Transaxle / PRNDL". This code relates to your vehicle's network communication and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.
Symptoms you may notice
- Check engine light (MIL) illuminated on dashboard
- Harsh or delayed gear shifts
- Transmission slipping
- Vehicle stuck in one gear (limp mode)
Estimated repair cost
Typical range in Australia (parts + labour)
$300 – $3000 AUD
Common causes
- Low or degraded transmission fluid
- Worn clutch packs or bands
- Faulty shift solenoid
- Wiring issue to the transmission control module
- Failing torque converter
What should you do?
This code sits in a powertrain control module. The engine or transmission can drop into limp mode or cut out, which is its own hazard in traffic or on a motorway. Get it diagnosed before your next trip rather than waiting for the next service.
Get a diagnosis for YOUR car
Code U1059 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.