u1130 scp j1850 invalid or missing data for fuel system

OBD2 Code: U1130

Description: SCP (J1850) Invalid or Missing Data for Fuel System

Definition: This code indicates that there is a communication issue within the vehicle’s network, specifically related to the fuel system. The SCP (Standard Corporate Protocol) J1850 bus is not receiving valid data from one or more modules responsible for managing the fuel system.

U1130 – SCP J1850 Invalid or Missing Data for Fuel System
– Severity: Moderate

Common Causes

– Common causes:
– Faulty fuel system control module
– Wiring issues between fuel system control module and other components
– Poor electrical connection to the fuel system control module

Common Misdiagnosis

OBD2 Code: U1130
Description: SCP (J1850) Invalid or Missing Data for Fuel System
Common Misdiagnosis: Replacing the fuel pump or fuel injectors without verifying communication issues in the vehicle’s network.

Common Diagnostic Steps

OBD2 Code: U1130
Description: SCP (J1850) Invalid or Missing Data for Fuel System

Common Diagnostic Steps:

• Check for any additional trouble codes that may be present and address them first.
• Inspect the vehicle’s wiring harnesses and connectors related to the fuel system for signs of damage, corrosion, or disconnection.
• Verify the integrity of the communication network (SCP/J1850 bus) by checking for proper voltage levels and continuity.
• Use a scan tool to monitor live data from the fuel system sensors to identify any irregularities or missing signals.
• Test the fuel system components such as fuel pump, injectors, and pressure regulator for proper operation.
• If applicable, update or reprogram the vehicle’s control modules with the latest software version available from the manufacturer.
• If no faults are found in hardware components, consider replacing suspect control modules after verifying all other possibilities have been exhausted.