D50/Power Ram 50 V6-181 3.0L SOHC (1991)
Generator: Testing and Inspection
Output Current Test
Fig. 8 Current output test connections
1.
With ignition switch in the Off position, disconnect battery ground cable.
2.
Disconnect wire from terminal B of alternator, then connect an ammeter between battery ground cable and alternator B terminal.
3.
Connect a voltmeter between B terminal and ground.
4.
Connect battery ground cable to battery ground post and note voltmeter reading. The voltmeter should indicate battery voltage. If voltage reads 0
volts, an open circuit in the wire between alternator B terminal and battery negative terminal, a blown fusible link or poor grounding are suspected.
5.
Connect a tachometer to engine, then start engine and turn on lights.
6.
Operate engine at 2500 RPM and note ammeter reading. Refer to Starting and Charging/Charging System/Alternator
/Specifications/Electrical for Alternator Specification Chart.