OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Body generic / SAE

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.

SystemBody
Typegeneric / SAE
GroupB0
Range / number1 / 62

Possible causes

  • Sun load sensor 2 failed high
  • Wiring or connector fault medium

Symptoms

  • Warning light or symbol related to the affected system
  • Comfort or safety function impaired

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 30–200 €
  • Estimated time: 0.3–1.5 h
  • Component: sun load sensor 2
  • Component: hvac control module

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication