Wgm Internal Regulator Alternator Wiring Diagram. Here is the 4 pin diagram it has never changed over the years for external regulators. A wiring diagram usually gives assistance very nearly the relative.
However as per the mando alternator wiring diagram there is a wire on both the exciter terminal and the sensing terminal. A self exciting or one wire alternator as it some times called has only one wire running to it that one wire is the main large battery wire. Gm has many different alternators and each has its own alternator wiring diagram and alternator symptoms.
If you look closely you will see that the wiring diagram from the existing vehicle has the indicator light going to the regulator while the merged wiring has it going to the alternator.
With this kind of an illustrative guidebook you will be able to troubleshoot stop and full your assignments with ease. Many late model vehicles use the engine computer which is often referred to as the powertrain control module pcm to control alternator output. To read through it initially establish the circuit in question then beginning from its terrain reference position stick to it. 5e8ddb3 wgm internal.