Drive Motor Control Module Requested MIL Illumination
The drive motor control module has requested MIL illumination via the inter-module bus. Underlying fault is reported separately.
Affected components
- Drive motor control module
- Module communication bus
Common causes
- High likelihood: Downstream fault in drive motor system
- Medium likelihood: Communication lag
Possible symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.