SCP (J1850) Invalid or Missing Data for Function Read Vehicle Speed

What does U1341 mean?

U1341 stands for SCP (J1850) Invalid or Missing Data for Function Read Vehicle Speed. Two or more of the car's computer modules are not communicating properly over the vehicle network (CAN bus).

Network codes cover the communication between the car's computer modules. When the car's computer sees a reading outside its normal range, it stores this code and may turn on a warning light on the dashboard.

Common causes

• Low or weak battery
• Damaged network wiring or connector
• A module that has lost power or failed
• Aftermarket accessories interfering with the network

What to do

1. Read all stored and pending codes with a scanner. Several codes together often point to one cause.
2. Note the freeze frame data (speed, temperature, load) recorded when the code was set.
3. Inspect the wiring and connectors of the part named in the code for damage, corrosion or looseness.
4. Fix the most likely and cheapest cause first, then clear the code and drive to see if it comes back.

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Frequently asked questions

What does U1341 mean?

U1341 means “SCP (J1850) Invalid or Missing Data for Function Read Vehicle Speed”. It belongs to the network communication group: Two or more of the car's computer modules are not communicating properly over the vehicle network (CAN bus).

Is it safe to drive with U1341?

You can usually drive carefully for a short time, but fix it soon to avoid further damage or higher fuel use.

How do I clear U1341?

Fix the cause, then clear the code with an OBD2 scanner or app. If the fault is still there, the code will come back.

Related codes

• U1261SCP (J1850) Single Ended (-) Circuit Failure
• U1262SCP (J1850) Communication Bus Fault
• U1308SCP (J1850) Invalid or Missing Data for Function Read Engine Torque
• U1313CAN-LS Monitor Data Abnormal (Subaru)
• U140AImplausible Right Front Wheel Speed Signal Received (Jeep)
• U1412Implausible Vehicle Speed Signal Received
• U1417Implausible Left Wheel Distance Signal (Dodge, Chrysler, Jeep)
• U1418Implausible Left Wheel Distance Signal Received (Chrysler, Dodge, Jeep)

Code meanings can vary by manufacturer. This page is general guidance, not a repair manual. Always confirm the cause before replacing parts.