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!

Network generic / SAE

U02BD

Lost Communication With Night Vision Control Module

The vehicle bus reports loss of communication with the night vision module. The infrared camera image and pedestrian highlighting in the head-up or cluster display are unavailable.

SystemNetwork
Typegeneric / SAE
GroupU0
Range / number2 / BD

Possible causes

  • Bus wiring open or shorted high
  • Module without power or ground medium
  • Module failed medium

Symptoms

  • Multiple warning lights may illuminate
  • Affected modules may go into limp mode or shut down
  • Specific functions inoperative depending on module
  • Diagnostic tools may show communication faults

Inspection / repair

  • Difficulty: medium
  • DIY: shop recommended
  • Estimated cost: 300–2500 €
  • Estimated time: 0.5–4 h
  • Component: night vision module
  • Component: vehicle bus wiring
  • drive cycle required

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