U1244 – OBD-II DTC

OBD-II DTC U1244 – SCP (J1850) Invalid or Missing Data for Interior Environment

DTC U1244 meaning

DTC U1244 refers to a diagnostic trouble code indicating “Invalid or Missing Data for Interior Environment.” This code is part of the OBD-II system and is specifically related to the communication between modules in a vehicle using the SCP (J1850) protocol. It suggests that the data expected from the interior environment sensors or modules is either not being received or is invalid, which can affect various functions within the vehicle.

DTC U1244 symptoms

Common symptoms associated with DTC U1244 may include:

• Malfunctioning climate control system
• Inaccurate temperature readings
• Warning lights on the dashboard
• Loss of functionality in interior features
• Erratic behavior of electronic components

DTC U1244 causes

Several factors can lead to the triggering of DTC U1244, including:

• Faulty interior environment sensors
• Wiring issues or damaged connectors
• Malfunctioning control modules
• Software glitches in the vehicle’s computer system
• Interference in the communication network

DTC U1244 seriousness

The seriousness of DTC U1244 can vary depending on the specific symptoms and the vehicle’s overall condition. While it may not pose an immediate safety risk, it can lead to:

• Increased discomfort due to climate control issues
• Potential damage to other electronic systems
• Inability to use certain features of the vehicle

It is advisable to address this code promptly to prevent further complications.

How to diagnose DTC U1244

To diagnose DTC U1244, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the U1244 code.
2. Check for any additional trouble codes that may provide more context.
3. Inspect the wiring and connectors related to the interior environment sensors for damage or corrosion.
4. Test the interior environment sensors for proper operation.
5. Examine the control modules for any signs of malfunction or software issues.
6. Perform a network communication test to ensure all modules are communicating correctly.

How to fix DTC U1244 step-by-step instructions

To fix DTC U1244, follow these steps:

1. Identify and repair any damaged wiring or connectors related to the interior environment sensors.
2. Replace any faulty interior environment sensors that are not functioning correctly.
3. Reprogram or update the control modules if software issues are detected.
4. Clear any stored trouble codes using an OBD-II scanner.
5. Test the vehicle to ensure that the issue has been resolved and that the DTC does not reappear.

How to erase DTC U1244

To erase DTC U1244, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Access the trouble codes menu on the scanner.
4. Select the option to clear or erase trouble codes.
5. Confirm the action and wait for the scanner to complete the process.
6. Disconnect the scanner and start the vehicle to check if the code reappears.

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