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Speed sensor Possible Cause 4. The DTCs are 00283, 00285, 00290, 00287 [Description] The DTCs will appear when the sensor has the recognizable open circuit, short circuit and other failures. [Hint] It may be caused due to the poor contact of sensor, the short circuit of coil or harness, or the failure of sensor signal processing circuit in the ABS ECU. * Open circuit of sensor connector * Short circuit of sensor * Short circuit between the sensor connection or harness with the counter-earth or power supply * ABS ECU sensor signal processing circuit failure Check the sensor of any wheel Normal Abnormal No Yes Normal Replace ABS ECU Remove the ABS ECU connector, and check whether the resistances between the following terminals of ABS ECU conform to the standard values? Standard value: 1.0 to 1.3 k Measure the resistances, and, at the same time, swing the sensor harness and connector. MK20I/E FL: 1 to 2 FR: 19 to 20 RL: 5 to 6 RR: 22 to 23 Check the related sensor connector The failure reoccurs or not? Refer to the “Repair Details of Random Failure” Check the electrical wirbetween the ABS ECU and sensores Repair the connector Normal P-33 |