Reyhan Blog: Bosch Alternator Wiring B D W

Bosch Alternator Wiring B D W

Output indicator lamp relay output from stator relay output from trio stator trio voltage sense bosch aux d b ig d df dfm 61 l d r w sta pd s bosch relay 31 b d 30. B b fld fld l d w l d s magneton b wd mando b exc purple s.

914world Com Alternator Question

Thing that has a ring terminal on the output wire.

Bosch alternator wiring b d w. The small b lead is for a filter capacitor which can be mounted to the case with the screw on the right. Com terminal overview limp in mode energizing the regulator residual field draw test. Voltage regulator plug identification alternators starters ig fr l d reg.

The one marked b next to the 8mm stud with the nut on it gets wired directly to the battery with a nice decent size cable. Alternator voltage regulator terminal designations system auxiliary battery negative battery. Brown with yellow stripe goes to d on bosch alternator dash light.

It has a large b terminal for the battery connection. White with slate stripe goes to w on bosch alternator tach lead. Attach the original b cable to the b terminal of the new truck harness plug not used 1 x2 two wire connection without tach d terminal b terminal truck harness plug not used 1 2 r x three wire connection with tach d terminal tachometer w b terminal.

Bosch contd d w free b. Since the b terminal is hard wired to the battery. It has a connection w which is similar to the al lead on the lucas alternator.

The alternator now begins to develop identical voltages at the d and b terminals. You need a wire from the d terminal to a 12v 4 watt globe small wedge globe or similar and then a wire from the other end of the globe to a 12v feed from the ignition. Some of them have a d as well which is the same as the small terminal of.

Thick brown wire battery lead goes to alternator battery stud bat. Ir n 17 l s s outside ig harness regulator. Original alternator and attach it to the d terminal of the new bosch alternator.

The d lead is used for the warning light in its original environment but well simply connect the f lead in an e type. Basic alternator testing 4 minutes included in this video. W is the feed to the alternator b is i think the voltage sensing feed.

The one marked d should be connected into the wiring harness where the original alternator signal wire was connected. Red wire to the firewall terminal. Without this connected or if the globe is blown the alternator will not charge.

I replaced it with a 4 ga. Voltage regulator plug identification alternators starters bosch chrysler delco ducellier ford hitachi. The d terminal is connected to one end of the charge warning lamp while the other end of the lamp is connected to the battery via the ignition switch.

Discussion in altfanlandrover started by leed aug 29 2006. Alternator w and b.

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