U1153 – OBD-II DTC

OBD-II DTC U1153 – SCP (J1850) Invalid or Missing Data for Experimental #3

DTC U1153 meaning

DTC U1153 refers to a communication issue within the vehicle’s network, specifically indicating “Invalid or Missing Data for Experimental #3.” This code is part of the OBD-II system and is associated with the SCP (Serial Communication Protocol) using the J1850 standard. It suggests that the vehicle’s control modules are unable to communicate properly, leading to a lack of expected data transmission.

DTC U1153 symptoms

Common symptoms associated with DTC U1153 may include:

• Warning lights illuminated on the dashboard
• Malfunctioning of certain vehicle features
• Erratic behavior of electronic components
• Loss of communication with specific control modules

DTC U1153 causes

Several factors can lead to the occurrence of DTC U1153, including:

• Faulty wiring or connectors in the communication network
• Defective control modules
• Software glitches or programming errors
• Interference from aftermarket devices

DTC U1153 seriousness

DTC U1153 can be considered serious as it indicates a failure in communication between control modules. This can lead to various malfunctions in vehicle systems, potentially affecting safety and performance. It is advisable to address this issue promptly to avoid further complications.

How to diagnose DTC U1153

To diagnose DTC U1153, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the DTC.
2. Check for any additional DTCs that may provide more context.
3. Inspect the wiring and connectors related to the SCP network for damage or corrosion.
4. Test the affected control modules for proper operation.
5. Review the vehicle’s service history for any recent repairs or modifications.

How to fix DTC U1153 step-by-step instructions

To fix DTC U1153, follow these step-by-step instructions:

1. Inspect and repair any damaged wiring or connectors in the communication network.
2. Replace any faulty control modules identified during diagnosis.
3. Update or reprogram the software of the control modules if necessary.
4. Disconnect any aftermarket devices that may interfere with communication.
5. Clear the DTC using an OBD-II scanner and test drive the vehicle to ensure the issue is resolved.

How to erase DTC U1153

To erase DTC U1153, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Access the diagnostic menu and locate the option to clear or erase DTCs.
3. Select the option to erase the DTCs and confirm the action.
4. Disconnect the scanner and start the vehicle to check if the code reappears.

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