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SGI854 CONTROL UNIT CIRCUIT TEST NBGI0004S0307 System Description: When the switch is ON, the control unit lights MGI034A Input-output voltage chart Pin No. Item Condition Voltage In case of high resistance such as single strand [V] 1 Switch Switch ON Battery voltage Lower than battery voltage Approx. 8 (Example) Switch OFF Approx. 0 Approx. 0 2 Lamp Switch ON Battery voltage Approx. 0 (Inoperative lamp) Switch OFF Approx. 0 Approx. 0 The voltage value is based on the body ground. HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT Circuit Inspection (Cont’d) GI-32 |