U1141 – OBD-II DTC

OBD-II DTC U1141 – SCP (J1850) Invalid or Missing Data for Gateway

DTC U1141 meaning

DTC U1141 refers to a diagnostic trouble code indicating that there is invalid or missing data for the gateway in a vehicle’s communication network. This code is specific to the SCP (Standard Corporate Protocol) using the J1850 communication protocol. The gateway is responsible for facilitating communication between different modules in the vehicle, and any disruption can lead to various issues.

DTC U1141 symptoms

Common symptoms associated with DTC U1141 may include:

• Warning lights on the dashboard, such as the check engine light.
• Malfunctioning of various electronic systems, including audio, climate control, or navigation.
• Loss of communication with certain modules, leading to erratic behavior.
• Increased difficulty in diagnosing other related DTCs.

DTC U1141 causes

Several factors can lead to the occurrence of DTC U1141, including:

• Faulty gateway module or communication interface.
• Wiring issues, such as damaged or corroded connectors.
• Software glitches or outdated firmware in the vehicle’s modules.
• Interference from aftermarket devices or modifications.

DTC U1141 seriousness

DTC U1141 can be considered a moderate to serious issue. While it may not immediately affect the drivability of the vehicle, it can lead to further complications if not addressed. The inability to communicate with certain modules can result in malfunctioning systems, which may compromise safety and comfort features.

How to diagnose DTC U1141

To diagnose DTC U1141, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC U1141.
2. Check for any additional DTCs that may provide more context.
3. Inspect the wiring and connectors related to the gateway module for damage or corrosion.
4. Verify the functionality of the gateway module using manufacturer-specific diagnostic tools.
5. Check for software updates or reprogramming needs for the vehicle’s modules.

How to fix DTC U1141 step-by-step instructions

To fix DTC U1141, follow these steps:

1. Address any wiring issues by repairing or replacing damaged connectors.
2. If the gateway module is faulty, replace it with a new or refurbished unit.
3. Reprogram or update the software of the gateway and related modules as necessary.
4. Clear the DTC using an OBD-II scanner and perform a test drive to ensure the issue is resolved.
5. Monitor the vehicle for any reoccurrence of the DTC.

How to erase DTC U1141

To erase DTC U1141, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Access the trouble codes menu and locate DTC U1141.
3. Select the option to clear or erase the codes.
4. Disconnect the scanner and start the vehicle to verify that the code does not return.

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.