What Does U0445 Mean?
The receiving control module has detected invalid data from Body Control Module 'D'. The module is communicating on the network, but the data content is corrupted, illogical, or outside acceptable parameters.
Common Causes
35%
Software corruption or version mismatch in Body Control Module D
30%
Damaged wiring, poor connections, or high resistance in CAN network serving BCM D
20%
Internal failure of Body Control Module D processor or memory
10%
CAN bus signal interference from damaged wiring insulation or improper routing
5%
Low voltage condition affecting BCM D operation and data transmission
Diagnostic Steps
1
Step 1: Monitor BCM D data stream in real-time to identify which specific data values are invalid or out-of-range
2
Step 2: Check for manufacturer software updates or recalls affecting BCM D
3
Step 3: Test CAN High and CAN Low circuit resistance between BCM D and adjacent modules (should be 60 ohms with key off)
4
Step 4: Inspect BCM D power and ground circuits for proper voltage and continuity
5
Step 5: Attempt module reprogramming; if unsuccessful, replace BCM D and perform necessary configuration
Estimated Repair Cost
$150 - $1,200
Parts + labor, varies by vehicle and location
The receiving control module has detected invalid data from Body Control Module 'D'. The module is communicating on the network, but the data content is corrupted, illogical, or outside acceptable parameters.
The most common cause of U0445 (Invalid Data Received From Body Control Module "D") is: Software corruption or version mismatch in Body Control Module D
Typical repair costs for U0445 range from $150 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Could affect body system functions like lighting, door locks, or climate control. Generally not an immediate safety concern but may lead to unpredictable system behavior.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0445 to identify the root cause.
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Quick Info
Category
Network
System
Body Control Network
Difficulty
Type
Generic (SAE)
Recommended Tools
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