DTC P0602: Control Module Programming Error: DTC Detecting Condition

2009 Hyundai Sonata SE, 3.3 FSECTION DTC Detecting Condition
DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Check internal CPU
  • Faulty PCM
Enable Condition
  • -
Threshold value
  • The version discordance among PCU S/W or Calibration
Diagnosis time
  • Continuous
MIL ON Condition
  • 1 driving cycle
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.