Medium Speed CAN Communication Bus (+) Open
The U0012 OBD-II code signals an issue with the Medium Speed CAN Communication Bus (+) being open. This pertains to a fault in the CAN (Controller Area Network) communication system, specifically the medium-speed bus that facilitates communication between different vehicle modules. An open circuit on the Medium Speed CAN Bus (+) means that the system is not receiving the expected signals from the CAN bus. This issue typically involves the medium-speed bus, which is used for data transfer between various modules, unlike the high-speed CAN bus, which handles more critical functions like communication with the powertrain control module, body control module, and transmission.
Symptoms:
Check Engine Light (CEL), Communication Problems, Poor Vehicle Performance, Difficulty with Diagnostics
Possible Causes of U0012 Code :
How to Fix it?
Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
Common Diagnose and Repairs:
Driving with vehicle warning codes can be dangerous and may do further damage to your vehicle. It is highly advisable that you have the vehicle inspected and diagnosed by a certified vehicle technician as soon as possible.
Book a repair appointmentRun a CarValid Vehicle History Report first!
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