P0602: Control Module Programming Error

MediumPowertrainEngine Electronics

What does P0602 mean?

P0602 is a diagnostic trouble code indicating "Control Module Programming Error". This code relates to your vehicle's engine electronics and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Common causes

  • Faulty engine electronics component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

Get a diagnosis for YOUR car

Code P0602 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

P0601Internal Control Module Memory Check Sum Error
P0603Internal Control Module Keep Alive Memory (KAM) Error
P0600Serial Communication Link Malfunction
P0604Internal Control Module Random Access Memory (RAM) Error