What Does U2008 Mean?
The audio system cannot communicate with the phone module, indicating loss of Bluetooth, hands-free calling, or integrated phone functionality. The phone control module is not responding on the vehicle network.
Common Causes
40%
Faulty phone control module or Bluetooth interface failure
25%
Damaged wiring or loose connectors between audio unit and phone module
20%
Phone module software corruption or firmware issue
10%
Audio head unit Bluetooth interface or communication port failure
5%
Network bus communication fault or phone module antenna issue
Diagnostic Steps
1
Step 1: Verify phone module has power and ground at the connector and check associated fuses
2
Step 2: Attempt phone module reset and check for available software updates or reflashing
3
Step 3: Inspect phone module connectors and Bluetooth antenna connections for damage
4
Step 4: Use scan tool to monitor for any communication messages from phone module on network
5
Step 5: Replace phone/Bluetooth module if all power, ground, and communication circuits test normal
Estimated Repair Cost
$200 - $900
Parts + labor, varies by vehicle and location
The audio system cannot communicate with the phone module, indicating loss of Bluetooth, hands-free calling, or integrated phone functionality. The phone control module is not responding on the vehicle network.
The most common cause of U2008 (Audio Phone is Not Responding) is: Faulty phone control module or Bluetooth interface failure
Typical repair costs for U2008 range from $200 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Minor safety concern. Loss of hands-free calling may lead to distracted driving if occupants attempt to use handheld phones instead.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U2008 to identify the root cause.
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Quick Info
Category
Network
System
Audio/Telecommunications Network
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
