What Does U047F Mean?
The control module receiving data from Seatbelt Pretensioner Module A is detecting corrupted or out-of-range information on the vehicle's communication network. This indicates a communication problem between the pretensioner module and other safety systems.
Safety Warning
Seatbelt pretensioners may not deploy properly in a collision, reducing occupant protection. The airbag warning light will likely be illuminated, and other SRS components may be disabled.
Common Causes
35%
Faulty seatbelt pretensioner module A with internal circuit failure
30%
Damaged or corroded wiring harness and connectors between pretensioner module and network bus
20%
Poor ground connection at pretensioner module or airbag system ground point
10%
Software corruption or outdated firmware in pretensioner module
5%
Network bus termination issue or interference on CAN communication line
Diagnostic Steps
1
Step 1: Check for proper battery voltage (11.5-14.5V) and inspect main power and ground connections to pretensioner module A
2
Step 2: Inspect pretensioner module A connector for corrosion, bent pins, or moisture; check connector retention
3
Step 3: Using a multimeter, verify continuity and resistance on CAN High and CAN Low wires between pretensioner module and network junction
4
Step 4: Monitor live data stream from pretensioner module A to identify specific invalid data parameters
5
Step 5: If wiring is intact, attempt module reprogramming/update; if unsuccessful, replace pretensioner module A
Estimated Repair Cost
$300 - $1,200
Parts + labor, varies by vehicle and location
The control module receiving data from Seatbelt Pretensioner Module A is detecting corrupted or out-of-range information on the vehicle's communication network. This indicates a communication problem between the pretensioner module and other safety systems.
The most common cause of U047F (Invalid Data Received From Seatbelt Pretensioner Module "A") is: Faulty seatbelt pretensioner module A with internal circuit failure
Typical repair costs for U047F range from $300 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Seatbelt pretensioners may not deploy properly in a collision, reducing occupant protection. The airbag warning light will likely be illuminated, and other SRS components may be disabled.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U047F to identify the root cause.
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Quick Info
Category
Network
System
Supplemental Restraint System (SRS) / Airbag System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
