What Does U1164 Mean?
The radio tuner/receiver module is failing to send valid data on the SCP network. This prevents proper integration between the radio and other vehicle systems.
Common Causes
40%
Failed radio/receiver module
25%
Aftermarket radio installation disrupting factory network
20%
Damaged or loose radio connector
10%
Antenna amplifier failure affecting tuner operation
5%
Blown radio fuse or poor power supply
Diagnostic Steps
1
Step 1: Verify if an aftermarket radio is installed and check for proper integration adapter
2
Step 2: Check all radio-related fuses and verify proper voltage at radio connector
3
Step 3: Inspect radio module connector for damage and ensure proper seating
4
Step 4: Test SCP network communication at radio connector using oscilloscope
5
Step 5: Test radio module by substitution if network signals are present
Estimated Repair Cost
$120 - $700
Parts + labor, varies by vehicle and location
The radio tuner/receiver module is failing to send valid data on the SCP network. This prevents proper integration between the radio and other vehicle systems.
The most common cause of U1164 (SCP (J1850) Invalid or Missing Data for Tuner / Receiver) is: Failed radio/receiver module
Typical repair costs for U1164 range from $120 to $700, depending on the vehicle, location, and whether you do it yourself or go to a shop.
No safety impact. Only affects radio and entertainment functions. Vehicle is safe to operate.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1164 to identify the root cause.
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Quick Info
Category
Network
System
Entertainment System
Difficulty
Type
Manufacturer
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