DC/DC Converter Temperature Sensor A Intermittent/Erratic
The ECM detects a intermittent/erratic fault on the dc/dc converter temperature sensor a. Reading cannot be used reliably for control.
Affected components
- Dcdc converter temp sensor a
- Wiring harness
- Dcdc converter
Common causes
- High likelihood: Sensor connector not seated
- Medium likelihood: Noisy ground reference
- 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.