Starter/Generator Mechanical Performance
The hybrid control module detects that the integrated starter/generator does not deliver the expected mechanical torque or speed for the commanded operation. Belt slippage, bearing wear, or coupling fault.
Affected components
- Starter generator
- Drive belt
- Hybrid control module
Common causes
- High likelihood: Drive belt slipping or worn
- Medium likelihood: Starter/generator bearing worn
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
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.