U1159: SCP (J1850) Invalid or Missing Data for Antenna
LowNetwork/CommunicationNetwork Communication
What does U1159 mean?
U1159 is a diagnostic trouble code indicating "SCP (J1850) Invalid or Missing Data for Antenna". 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
- Possible issues with network communication operation
- Vehicle may enter reduced power mode (limp mode)
Estimated repair cost
Typical range in Australia (parts + labour)
$50 – $300 AUD
Common causes
- Faulty network communication component
- Wiring or connector issue in the related circuit
- Failed sensor providing incorrect readings
- Software/calibration issue requiring ECU update
- Related component causing secondary fault
What should you do?
This code sits in the climate, audio or convenience side of the car. It does not affect how the car drives or stops. Sort it at your next service unless it is bothering you enough to sort sooner.
Get a diagnosis for YOUR car
Code U1159 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.