← View Generic U3397 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2019 Ford F150 PICKUP
U3397: Network Communication Code U3397 - Gateway
on 2019 Ford F150 PICKUP
Fix Cost
$50 - $300
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
Your Vehicle
2019 Ford
F150 PICKUP
⚠️
Important for 2019 Ford F150 PICKUP Owners
Before starting repairs, verify which engine your 2019 Ford F150 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.
📖 What Does U3397 Mean on 2019 Ford F150 PICKUP?
Network communication diagnostic trouble code related to gateway communication.
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Symptoms
- • Communication errors
- • module malfunctions
- • system integration failures
- • CAN bus issues.
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Common Causes
- • CAN bus faults
- • module communication errors
- • wiring problems
- • connector corrosion.
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How to Fix U3397 on 2019 Ford F150 PICKUP
Check CAN bus integrity, test module communication, repair wiring, clean connectors.
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Need Maintenance Info for Your F150 PICKUP?
Get oil capacity, filter specs, and torque settings for your specific 2019 Ford F150 PICKUP.
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Essential Tool
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Related Diagnostic Codes
Other codes that may appear with U3397
U3395
Sequential Code
Network Communication Code U3395 - CAN Bus
Medium
U3396
Sequential Code
Network Communication Code U3396 - Module Communication
Medium
U3398
Sequential Code
Network Communication Code U3398 - Network Hub
Medium
U3399
Sequential Code
Network Communication Code U3399 - Data Link
Medium
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system