HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT Circuit Inspection (Cont’d)
MGI035A
Input-output voltage chart Pin No.
Item
Condition
Voltage value [V]
In case of high resistance such as single strand [V] *
1
Lamp
Switch ON
Approx. 0
Battery voltage (Inoperative lamp)
Switch OFF
Battery voltage
Battery voltage
Switch ON
Approx. 0
Higher than 0 Approx. 4 (Example)
Switch OFF
Approx. 5
Approx. 5
2
Switch
The voltage value is based on the body ground. * : If high resistance exists in the switch side circuit (caused by a single strand), terminal 2 does not detect approx. 0V. Control unit does not detect the switch is ON even if the switch does not turn ON. Therefore, the control unit does not control ground to light up the lamp.
GI-32