U1430 – OBD-II DTC

OBD-II DTC U1430 – SCP (J1850) Invalid or Missing Data for Function Read Fuel System

DTC U1430 meaning

DTC U1430 refers to a diagnostic trouble code that indicates an issue with the communication of the fuel system data within the vehicle’s onboard diagnostics system. Specifically, it signifies that the data related to the fuel system function is either invalid or missing. This code is associated with the SCP (Serial Communication Protocol) using the J1850 standard, which is commonly used in Ford vehicles and some other manufacturers.

DTC U1430 symptoms

When DTC U1430 is present, the following symptoms may be observed:

• Check Engine Light illuminated
• Inaccurate fuel gauge readings
• Engine performance issues
• Difficulty starting the engine
• Increased fuel consumption

DTC U1430 causes

Several factors can lead to the triggering of DTC U1430, including:

• Faulty fuel level sensor
• Wiring issues or damaged connectors in the fuel system
• Malfunctioning Engine Control Module (ECM)
• Software glitches in the vehicle’s computer system
• Corrupted data communication between modules

DTC U1430 seriousness

DTC U1430 can be considered serious as it may affect the vehicle’s fuel management system. If left unaddressed, it can lead to poor engine performance, increased emissions, and potential damage to the engine or fuel system components. It is advisable to diagnose and resolve this issue promptly to ensure optimal vehicle operation.

How to diagnose DTC U1430

To diagnose DTC U1430, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC U1430.
2. Check for any additional trouble codes that may provide more context.
3. Inspect the wiring and connectors related to the fuel system for damage or corrosion.
4. Test the fuel level sensor for proper operation.
5. Examine the Engine Control Module (ECM) for software updates or faults.
6. Perform a communication test between modules to ensure data is being transmitted correctly.

How to fix DTC U1430 step-by-step instructions

To fix DTC U1430, follow these steps:

1. Repair or replace any damaged wiring or connectors found during diagnosis.
2. Replace the faulty fuel level sensor if it is not functioning correctly.
3. Update or reprogram the Engine Control Module (ECM) if necessary.
4. Clear any communication issues between modules by checking connections and ensuring proper grounding.
5. After repairs, use the OBD-II scanner to clear the DTC and perform a test drive to verify that the issue is resolved.

How to erase DTC U1430

To erase DTC U1430, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition key to the “On” position without starting the engine.
3. Access the scanner’s menu and select the option to clear or erase trouble codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and start the engine to ensure the code does not reappear.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.