OBD-II FAULT CODE
P1639

Vehicle ID Block Corrupted or Not Programmed

Reference information for P1639. Because this is manufacturer-specific, confirm the exact definition for the vehicle before using the diagnostic guidance below.

Manufacturer-specific code

This code can have different meanings depending on vehicle make, model and year. Treat the definition below as a reference and confirm it with OEM service information before diagnosis or repair.

PowertrainSystem
Body access / doorCategory
LowSeverity
  • Check Engine light
  • Poor drivability or reduced fuel economy depending on fault
  • Faulty switch/actuator
  • Broken wiring in door hinge area
  • Blown fuse
  • Module coding/calibration issue
  • Scan all modules and record freeze-frame data before clearing codes
  • Check battery voltage and related fuses
  • Check switch input, actuator output, fuse and door-jamb wiring
  • Repair broken wiring, replace failed switch/actuator, recalibrate if required
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Disclaimer: Information is provided for general guidance only and may not apply to all vehicles. Always consult a qualified technician.