u1205 ima can malfunction battery condition monitor module motor control module

OBD2 Code: U1205

Description: IMA CAN Malfunction – Battery Condition Monitor Module / Motor Control Module

Definition: The OBD2 code U1205 indicates a communication error between the Integrated Motor Assist (IMA) system components, specifically involving the Battery Condition Monitor Module and the Motor Control Module. This may result in improper functioning or failure of hybrid vehicle systems.

: IMA CAN Malfunction
Severity: Moderate

: Battery Condition Monitor Module
Severity: Low

: Motor Control Module
Severity: High

Common Causes

– IMA Can Malfunction (Battery Condition Monitor Module Motor Control Module)
Common causes:
– Faulty battery condition monitor module
– Faulty motor control module
– Wiring issues

 

Common Misdiagnosis

OBD2 Code: U1205
Description: IMA CAN Malfunction – Battery Condition Monitor Module / Motor Control Module
Common Misdiagnosis: Faulty wiring or connectors are often misdiagnosed as a defective battery condition monitor module or motor control module.

 

Common Diagnostic Steps

OBD2 Code: U1205
Description: IMA CAN Malfunction – Battery Condition Monitor Module to Motor Control Module
Common Diagnostic Steps:

• Verify the code using an OBD2 scanner and note any additional codes.
• Inspect the wiring and connectors between the Battery Condition Monitor Module and the Motor Control Module for damage or corrosion.
• Check for loose connections or poor terminal contact in the CAN bus network.
• Test the battery condition monitor module for proper operation using a multimeter or specialized diagnostic tool.
• Examine the motor control module for faults or malfunctions.
• Ensure that all related software is up-to-date with manufacturer specifications.
• If necessary, replace faulty modules or repair damaged wiring as per manufacturer guidelines.