Hybrid/EV Powertrain Control Module Requested MIL Illumination
The hybrid powertrain control module has requested MIL illumination via the inter-module bus. Underlying fault is reported separately by the requesting module.
Affected components
- Hybrid powertrain cm
- Module communication bus
Common causes
- High likelihood: Downstream fault in hybrid system
- Medium likelihood: Communication lag - MIL request stale
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.