P1800
Idle Switch Circuit Malfunction
DTC P1800, sometimes indicated as P180000 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the causing idle switch circuit malfunction.
- P1800: Idle Switch Circuit Malfunction
- P1800 00: System voltage, ignition - out of limits
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