What Does U1159 Mean?
Duplicate or secondary code for antenna module communication fault on SCP network, related to U1158. Multiple modules are reporting the same missing antenna data.
Common Causes
35%
Malfunctioning antenna amplifier module
30%
Loose or corroded antenna module connector
20%
Loss of power supply to antenna module
10%
Physical damage to antenna affecting module function
5%
Communication wire damage between antenna and network
Diagnostic Steps
1
Step 1: Address as companion to U1158, same root cause likely
2
Step 2: Test for battery voltage at antenna module connector
3
Step 3: Verify ground circuit continuity to chassis
4
Step 4: Inspect antenna mast and base for physical damage or water intrusion
5
Step 5: Replace antenna module if power, ground, and wiring are confirmed good
Estimated Repair Cost
$100 - $400
Parts + labor, varies by vehicle and location
Duplicate or secondary code for antenna module communication fault on SCP network, related to U1158. Multiple modules are reporting the same missing antenna data.
The most common cause of U1159 (SCP (J1850) Invalid or Missing Data for Antenna) is: Malfunctioning antenna amplifier module
Typical repair costs for U1159 range from $100 to $400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
No safety concerns. Only impacts radio reception and antenna functionality.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1159 to identify the root cause.
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Quick Info
Category
Network
System
Audio/Entertainment System
Difficulty
Type
Manufacturer
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