What Does U0515 Mean?
A control module is receiving invalid or corrupted data from the remote function actuation system, which typically handles remote start, keyless entry, or remote trunk/door functions. The data being transmitted over the network does not match expected parameters.
Common Causes
35%
Defective remote function actuator module with internal failure
25%
Weak or dying key fob battery causing signal degradation
20%
Damaged wiring or poor connections to RF receiver module
15%
Interference from aftermarket remote start or alarm systems
5%
Body control module software issue or corrupted memory
Diagnostic Steps
1
Step 1: Test all key fobs with fresh batteries to rule out weak transmitter signal
2
Step 2: Use scan tool to monitor remote function module data stream and check for intermittent or invalid messages
3
Step 3: Inspect RF receiver module location (often near rearview mirror or rear package shelf) for loose connections or antenna damage
4
Step 4: Check for aftermarket security or remote start systems that may be interfering with factory network communication
5
Step 5: Perform network integrity test and verify module can be reprogrammed or requires replacement
Estimated Repair Cost
$125 - $550
Parts + labor, varies by vehicle and location
A control module is receiving invalid or corrupted data from the remote function actuation system, which typically handles remote start, keyless entry, or remote trunk/door functions. The data being transmitted over the network does not match expected parameters.
The most common cause of U0515 (Invalid Data Received From Remote Function Actuation) is: Defective remote function actuator module with internal failure
Typical repair costs for U0515 range from $125 to $550, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Remote functions may be inoperative but does not affect vehicle drivability or safety. May impact convenience and security features like remote lock/unlock.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0515 to identify the root cause.
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Quick Info
Category
Network
System
Remote Keyless Entry System
Difficulty
Type
Generic (SAE)
Recommended Tools
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