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Home >> Ford >> 1989 >> Bronco II 4WD, Standard, M5OD-R1 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Ignition System >> Testing - (Dis) - No Start (2.3L) >> Test 7, Check Dis Module VBAT
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Test 7, Check Dis Module VBAT

Install diagnostic cable. Connect diagnostic cable to breakout box. Use the 2.3L overlay. connect LED test lamp between (-) J2 (IGN D) and (+) J5 (VBAT D). Turn key on. Is LED test light on? If yes, go to TEST 8. If not, check connectors, service or replace harness and check for fault codes. See appropriate TESTS W/CODES article in the ENGINE PERFORMANCE section.