P1600

DTC P1600 ECM BATT Malfunction

CIRCUIT DESCRIPTION
Battery voltage is supplied to terminal BATT of the ECM even when the ignition switch is OFF for use by the DTC memory and air-fuel ratio adaptive control value memory, etc





DETECTING CONDITION AND TROUBLE AREA

HINT: If DTC P1600 appear, the ECM does not store another DTC.





WIRING DIAGRAM








INSPECTION PROCEDURE