P1600

DTC P1600 ECM BATT Malfunction

CIRCUIT DESCRIPTION
Battery positive voltage is supplied to terminal BATT of the ECM even if the ignition switch is OFF. It is used by the DTC memory and air-fuel ratio adaptive control value memory, etc.





DETECTING CONDITION

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





WIRING DIAGRAM








INSPECTION PROCEDURE