B0162
Sun Load Sensor 2 Circuit
The HVAC control module has detected an implausible signal from the second sun load sensor. Dual-zone systems use two solar sensors to detect side-asymmetric sunlight and adjust left/right airflow temperature.
- Check engine light: Not always
- Emissions related: No
- Repair difficulty: easy
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
Ordered by how often each turns out to be the cause.
- Sun load sensor 2 failedCommon
- Wiring or connector faultPossible
Parts involved
- Sun Load Sensor 2
- Hvac Control Module
B0162 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.