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EC-10 < PRECAUTION > [VQ35DE] PRECAUTIONS General Precautions INFOID:0000000009650917 • 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 will now start to self-control at its initial value. Thus, engine operation can vary slightly in • If the battery is disconnected, the following emission-related diagnostic information will be lost within 24 hours. - Diagnostic trouble codes securely with a lever (1) as far as it will go as shown in the fig- - ECM (2) • When connecting or disconnecting pin connectors into or from ECM, never damage pin terminals (bends or break). • Securely connect ECM harness connectors. A poor connection can cause an extremely high (surge) volt- • Keep engine control system harness at least 10 cm (4 in) away from adjacent harness, to prevent engine control system mal- • Keep engine control system parts and harness dry. SEF289H PBIB2947E PBIB0090E |