u0075 control module communication object detection can bus off

U0075 Control Module Communication Object Detection CAN Bus Off

OBD2 Code: U0075

Description: Control Module Communication Object Detection CAN Bus Off

Definition: This code indicates that there is a communication issue with the control module on the CAN (Controller Area Network) bus. The “Bus Off” status means that the module has been disconnected from the network due to excessive errors, preventing it from sending or receiving messages.

: Control Module Communication Object Detection Can Bus Off
– Severity: Moderate

Common Causes

U0075 – Control Module Communication Object Detection Can Bus Off

Common Causes:

• Faulty control module
• Intermittent connection issues
• Can bus wiring or connector problems
• Software glitches in the control module

 

Common Misdiagnosis

Control Module Communication Bus ‘A’ Off

Common Misdiagnosis: Replacing the control module without checking for wiring issues or CAN bus faults.

 

Common Diagnostic Steps

OBD2 Code: U0075
Description: Control Module Communication Bus ‘A’ Off

Common Diagnostic Steps:

• Check for any other communication-related codes that may be present.
• Inspect the CAN bus wiring and connectors for damage, corrosion, or disconnection.
• Verify the integrity of the power and ground connections to all control modules on the network.
• Use a scan tool to check for proper communication between control modules.
• If possible, perform a wiggle test on the wiring harness while monitoring data to identify intermittent issues.
• Consult the vehicle’s service manual for specific diagnostic procedures related to this code.
• If necessary, replace or repair damaged wiring or connectors as identified during inspection.