P1803 HYUNDAI – Immobilizer ECU Signal Error

P1803 HYUNDAI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1803 HYUNDAI Possible Causes

Faulty Immobilizer ECU,Immobilizer ECU harness is open or shorted,Immobilizer ECU circuit poor electrical connection

P1803 HYUNDAI Description

Immobilizer ECU Signal Error is the generic description for the P1803 Hyundai code, but the manufacturer may have a different description. Currently we have no further information abouth the P1803 Hyundai OBDII code.