Starter/Generator Phase Z Current Circuit Intermittent/Erratic
The current measurement on starter/generator phase Z drops out or jumps intermittently. Loose connector or vibration-sensitive sensor.
Affected components
- Starter generator phase z current sensor
- Wiring harness
- Hybrid control module
Common causes
- High likelihood: Sensor connector not seated
- Medium likelihood: Harness chafing intermittently shorts the wire
- Low likelihood: Connector with intermittent contact under vibration
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.