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Home >> Volvo >> 1987 >> 780 AW71 >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH LH (Non Turbo) >> Testing >> Current Supply Check

Current Supply Check

  1. On all models, connect voltmeter to terminal No. 1 and ground. Crank engine and watch voltmeter. Voltmeter should deflect. If not, check Gray wire to ignition coil.
  2. On all models, connect a voltmeter from terminal No. 18 to ground. Turn ignition switch on. Battery voltage should be indicated. If not, check wiring back to ignition switch. Current is supplied through fuse No. 12.
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