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OBD-II · Engine and powertrain (P)

P1602

Manufacturer-specific code

Meaning by manufacturer

This code means different things on different makes. Find yours below.

  • Volkswagen, Audi, Seat, Skoda, Cupra

    Power supply (terminal 30) low voltage

    The engine computer saw low battery voltage at some point. It is usually a record of a weak battery or a jump start, not a computer fault.

    Likely causes, most likely first

    1. 01Battery recently disconnected or discharged
    2. 02Weak battery causing voltage drop during cranking
    3. 03Loose or corroded battery terminals, earth straps or ECM supply wiring
    4. 04Charging-system fault

    Severity: Low: fix when convenient · Easy DIY job