What Does U1750 Mean?
The module responsible for audible warnings (chimes, beeps) is not acknowledging network messages. This prevents the system from confirming that warning sounds are being generated when required.
Common Causes
35%
Failed chime module or audio warning module internal failure
30%
Damaged wiring or connector to the chime/warning module
20%
Body control module not sending proper commands or failed BCM
10%
SCP network communication fault affecting multiple modules
5%
Power or ground circuit failure to audible warning system
Diagnostic Steps
1
Step 1: Verify power and ground circuits to the chime/audible warning module are intact
2
Step 2: Check module connector for corrosion, damage, or loose pins
3
Step 3: Use scan tool to attempt to command audible warnings and monitor for module response
4
Step 4: Verify SCP bus communication signals are present at the audible warning module connector
5
Step 5: Test speaker/chime output circuit for proper continuity if module is communicating
Estimated Repair Cost
$120 - $600
Parts + labor, varies by vehicle and location
The module responsible for audible warnings (chimes, beeps) is not acknowledging network messages. This prevents the system from confirming that warning sounds are being generated when required.
The most common cause of U1750 (SCP (J1850) Lack of Acknowledgment for Audible Warnings) is: Failed chime module or audio warning module internal failure
Typical repair costs for U1750 range from $120 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Driver may not receive audible warnings for critical conditions like keys in ignition, lights left on, door ajar, or seatbelt reminders.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1750 to identify the root cause.
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Quick Info
Category
Network
System
Audible Warning / Alert System
Difficulty
Type
Manufacturer
Recommended Tools
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