Starter/Generator Phase Y Current Sensor Circuit Low
The current sensor for starter/generator phase Y reports voltage below the expected window. Indicates short to ground or sensor offset drifted low.
Affected components
- Starter generator phase y current sensor
- Wiring harness
- Hybrid control module
Common causes
- High likelihood: Signal wire shorted to ground
- Medium likelihood: Sensor offset drifted low
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
- Reduced-power or limp mode may occur
Related codes
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.