FI SYSTEM DIAGNOSIS 4-25 SELF-DIAGNOSTIC PROCEDURES NOTE: * Don’t disconnect couplers from the ECM, the battery cable from the battery, ECM ground wire harness from the engine or main fuse before confirming the malfunction code (self-diag- nostic trouble code) stored in memory. Such disconnection will erase the memorized information in ECM memory. * Malfunction code stored in ECM memory can be checked by the special tool. * Before checking malfunction code, read SELF-DIAGNOSIS FUNCTION “USER MODE and DEALER MODE” (4-17 and 4-18) carefully to have good understanding as to what functions are available and how to use it. * Be sure to read “PRECAUTIONS IN SERVICING” (4-3) before inspection and observe what is written there. • Remove the front seat. (8-7) • Connect the special tool to the dealer mode coupler at the wir- ing harness, and start the engine or crank the engine for more than 4 seconds. • Turn the special tool’s switch ON and check the malfunction E code to determine the malfunction part. 09930-82720: Mode select switch L P M A S SELF-DIAGNOSIS RESET PROCEDURE • After repairing the trouble, turn OFF the ignition switch and turn ON again. • If the malfunction code indicates (C00), the malfunction is cleared. • Disconnect the special tool from the dealer mode coupler. NOTE: * Even though the malfunction code (C00) is indicated, the previ- ous malfunction history code still remains stored in the ECM. Therefore, erase the history code memorized in the ECM using SDS. * The malfunction code is memorized in the ECM also when the wire coupler of any sensor is disconnected. Therefore, when a wire coupler has been disconnected at the time of diagnosis, erase the stored malfunction history code using SDS.