1996 Johnson Evinrude "ED" 90 LV 125C, 130, 200, 225, 250 Service Manual, P/N 507128, Page 190Get this manual
9 DR4077
STEPSENSOR COIL TEST
Ground Test
[!] 1Disconnect 5-pin Amphenol connector between timer base and power pack2Set peak-reading voltmeter to "POS" and "5", "SEN" and "5" on Stevens CD-77 meter
3Alternately, connect voltmeter between each timer base terminal and clean engine groundCrank engine and observe meter at each connection Any reading indicates sensor coils or leads are grounded Locate and repair ground, or replace timer base
4If no reading is indicated in Step 3, go to Output TestOutput Test
1Set peak-reading voltmeter to "POS" and "5", liSEN" and "5" on Stevens CD-77 meter