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EC-1294 < PRECAUTION > [K9K] PRECAUTIONS General Precautions INFOID:0000000001162746 • Always use a 12 volt battery as power source. running. • Before connecting or disconnecting the ECM harness con- nector, turn ignition switch OFF, wait 3 minutes and discon- • Before removing parts, turn ignition switch OFF and then dis- connect battery negative cable. • Do not disassemble ECM. • When connecting ECM harness connector, fasten (A) it securely with levers (1) as far as they will go as shown in the - ECM (2) • When connecting or disconnecting pin connectors into or from ECM, take care not to damage pin terminals (bend or • Securely connect ECM harness connectors. A poor connection can cause an extremely high (surge) volt- • Keep engine control system harness at least 10cm (4 in) away from adjacent harness, to prevent engine control system mal- • Keep engine control system parts and harness dry. SEF289H MBIB1517E MBIB1518E SEF291H |