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EC-10 < PRECAUTION > [VK56VD] PRECAUTIONS CAUTION: Comply with the following cautions to prevent any error and malfunction. tor, the housing, etc. by high-voltage leakage or corona discharge.) • Never perform HID circuit inspection with a tester. On Board Diagnostic (OBD) System of Engine and A/T INFOID:0000000006217652 The ECM has an on board diagnostic system. It will illuminate the malfunction indicator lamp (MIL) to warn the CAUTION: • Always turn the ignition switch OFF and disconnect the negative battery cable before any repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will cause • Always connect and lock the connectors securely after work. A loose (unlocked) connector will cause the MIL to illuminate due to the open circuit. (Be sure the connector is free from water, grease, • Certain systems and components, especially those related to OBD, may use a new style slide-lock- ing type harness connector. For description and how to disconnect, refer to • Always route and secure the harnesses properly after work. The interference of the harness with a bracket, etc. may cause the MIL to illuminate due to the short circuit. • Always connect rubber tubes properly after work. A misconnected or disconnected rubber tube may cause the MIL to illuminate due to the malfunction of the EVAP system or fuel injection system, etc. • Always erase the unnecessary malfunction information (repairs completed) from the ECM and TCM (Transmission control module) before returning the vehicle to the customer. General Precautions INFOID:0000000006217653 • Always use a 12 volt battery as power source. running. • Before connecting or disconnecting the ECM harness con- nector, turn ignition switch OFF and disconnect negative bat- • Before removing parts, turn ignition switch OFF and then dis- connect battery ground cable. • Never disassemble ECM. the ECM value. • If the battery is disconnected, the following emission-related diagnostic information will be lost within 24 hours. - Diagnostic trouble codes SEF289H JMBIA0057ZZ |