Lesson 16
Applied Voltage Drops
Typical voltage drop readings; voltage drops in wiring; voltage drops in connections; voltage drops in battery cables; voltage drops in battery posts; voltage drops [...]
These lessons cover essential electrical and electronics lessons for automotive, truck and heavy equipment technicians in a way that minimizes excessive emphasis on electrical theory and focuses on the more practical aspects of troubleshooting vehicle electrical and electronic systems. This is a complete 60 lesson vehicle electrical-electronics training program with a review test after every 4th lesson. The lessons begin with essential electrical training and then through vehicle on-board computer circuit operation and circuit troubleshooting.
Typical voltage drop readings; voltage drops in wiring; voltage drops in connections; voltage drops in battery cables; voltage drops in battery posts; voltage drops [...]
Introduction to parallel circuits; The Parallel Circuit; Review of the laws of series circuits; Introduction to Voltage and Current In Parallel; The Law of Voltage i[...]
Introduction; The Series Circuit; The Parallel Circuit; Cold Circuit Analysis; Practice Exercises Using Figure 3; The Compound Circuit; Practice Exercise Using Figur[...]
Why test batteries?; what is VET battery trouble-shooting?; battery construction; battery voltage; battery operation; specific gravity; surface charge; specific grav[...]
Overview of battery testing; test equipment for battery testing; crank test the battery in the vehicle; BATTERY TEST FOR DISCHARGE; determine remaining battery servi[...]
Introduction to Alternators; The Alternator or Charging System; The Charging Voltage; The Charging Current; The Voltage Regulator; Regulating the Charging Voltage; R[...]
The Diode Trio; The Electronic Feedback Principle; Alternator Specifications; Vds in the Charging System; When VdVS and VdGS are Slightly Too High; Alternator Noise;[...]
The Vehicle's Voltage Source; BVEC Series Lamp Circuit; Load Control; The Texas-Two-Step; Switch-to-Voltage Control; Vc with Switch-to-Voltage Control; Switch-to-Gro[...]
What Goes Wrong in a Circuit?; The Texas-Two-Step; Effect of VdLOAD on the Circuit; Six Common Circuit Problems; Circuit Problem #1; Definition of an Open Circuit; C[...]
Introduction to short circuits; What is a short?; BVEC Circuit; Testing total resistance;; Evaluating CUT RT; Shorted Load; Low resistance Load; Voltage side short t[...]
Overview of electronic components; Introduction to capacitors; Capacitors in DC versus AC circuits; Charging capacitors with DC; Polarity of capacitor charge; Quanti[...]
The charged capacitor; Dielectric leakage; A capacitor holds a charge; How a capacitor discharges, Capacitor action in a live circuit; S1 closed, S2 closed; Capacito[...]
Review of an electrostatic field; What is an inductor; Inductors compared to capacitors; Current through a wire; Use care with an inductive current clamp; Properties[...]
Inductors in circuits; Inductive characteristics; Inductance and current; Inductance and resistance; Inductance and core material; Inductance and number of turns; Tr[...]
The good and the bad about inductors; energizing a coil; Battery voltage decreases while cranking; De-energizing a coil; Surge current path; How a coil dumps stored [...]