DTC    P0503    Vehicle Speed Sensor "A" Intermittent / Erratic / High

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK OPERATION OF SPEEDOMETER

READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED)

CHECK HARNESS AND CONNECTOR (+S VOLTAGE)

CHECK COMBINATION METER ASSEMBLY (SPD SIGNAL WAVEFORM)

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - ECM)

REPLACE ECM

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE COMBINATION METER ASSEMBLY

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED