OBD II Fault Code P9050 :

Description of Fault code P9050

Communication circuit error (BUS Off)
When the Bus is cut off, all of the signal transmissions of B-CAN line are stopped, and multiple DTCs, indicating communication error between units, are stored at the same time. When DTCs, indicating Bus off, are stored, be sure to perform the troubleshooting for Bus off first. 

Possible failuer P9050

Relay control module

Diagnostic Procedure using AutoHex II Scan Tool

• The data isn t obtained because B-CAN Frame can t be received.
• The B-CAN System doesn t actuate.

Test Conditions using AutoHex tester

• When B-CAN Data is sending

Clear Fault codes Conditions

• The data isn t obtained because B-CAN Frame can t be received.
• The B-CAN System doesn t actuate.

MIL Status

• Keyless Access Indicator ON

Note:

• AutoHex II is a professional Auto diagnostic.
• This fault code is a GERENRIC fault code, some cars may change the meaning of this fault code.
  To get the accurate fault code description you may use AutoHex II

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