What Does U0553 Mean?
The receiving module has identified that data messages from the rear secondary lighting control module contain invalid information, corrupted values, or missing parameters. This affects network communication for rear auxiliary lighting functions.
Common Causes
40%
Failed Rear Lighting Control Module B with internal processor or memory fault
25%
Corroded or damaged module connector pins causing intermittent communication
20%
CAN bus network wiring damage or short circuit in rear harness section
10%
Poor ground connection at rear lighting module affecting signal integrity
5%
Water intrusion or environmental damage to module housing in rear location
Diagnostic Steps
1
Step 1: Access live data for Rear Lighting Control Module B and verify whether module is communicating and check data parameter values
2
Step 2: Locate and inspect Rear Lighting Control Module B, typically in rear cargo area or under rear bumper, check for water damage and connector integrity
3
Step 3: Test voltage supply and ground circuits at the module connector using multimeter, confirm proper operating voltage
4
Step 4: Perform CAN bus network integrity test measuring resistance between CAN high and low lines (should be approximately 60 ohms with key off)
5
Step 5: Swap module with known-good unit if available, or attempt module reprogramming/initialization if software update is applicable
Estimated Repair Cost
$200 - $750
Parts + labor, varies by vehicle and location
The receiving module has identified that data messages from the rear secondary lighting control module contain invalid information, corrupted values, or missing parameters. This affects network communication for rear auxiliary lighting functions.
The most common cause of U0553 (Invalid Data Received From Lighting Control Module Rear "B") is: Failed Rear Lighting Control Module B with internal processor or memory fault
Typical repair costs for U0553 range from $200 to $750, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Rear auxiliary lighting features may not function correctly, potentially reducing visibility to other drivers or affecting cargo/work light operation. Primary safety lighting typically unaffected.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0553 to identify the root cause.
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Quick Info
Category
Network
System
Lighting Control Network
Difficulty
Type
Generic (SAE)
Recommended Tools
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