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Home >> Suzuki >> 1991 >> Sidekick 4WD L4-1590cc 1.6L SOHC 0 TBI 8V >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Description and Operation >> Back-Up Function
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Back-Up Function

Even when CPU in ECM fails to operate properly, the back-up circuit in ECM controls operation of the injector on the basis of the signals from pressure sensor so as to least impair driving performance.