Last month we asked this Tech question and invited you to share your answer. We value your expertise and want to thank everyone who participated!
Question:
Answer: Technician B is correct! The L-Terminal (Logic or Lamp terminal) serves as the primary communication bridge between the Engine Control Module (ECM) and the alternator's internal voltage regulator. The ECM typically sends a Pulse Width Modulated (PWM) signal to this terminal. By varying the duty cycle, the ECM can precisely control the alternator's output voltage
Congratulations to the following shops who answered this question and will be receiving a prize pack!
Question:
Two technicians are discussing the L terminal of a current General Motors computer controlled alternator. Technician A says this is the load circuit that the computer uses to determine electrical load on the alternator.Technician B says this is the circuit the computer uses to control the alternators voltage regulator.
Who is correct? A or B?
Answer: Technician B is correct! The L-Terminal (Logic or Lamp terminal) serves as the primary communication bridge between the Engine Control Module (ECM) and the alternator's internal voltage regulator. The ECM typically sends a Pulse Width Modulated (PWM) signal to this terminal. By varying the duty cycle, the ECM can precisely control the alternator's output voltage
Congratulations to the following shops who answered this question and will be receiving a prize pack!
- Howie at Al Heron Sales & Service Ltd in Ottawa, ON
- Roberta at Barrie Frame & Alignment in Barrie, ON
TECH CHALLENGE PROMOTION REMINDER
The Tech Challenge question is published in our weekly eNewsletter with an online answer form. Fill out the form with the details of how you would perform the repair to be entered for the chance to win the prize pack. You can also submit a challenge for future Tech Challenges! A draw is conducted with all shops who answered the question correctly and one is selected as a winner for a prize pack.
Got a Tech Tip you want to share for a future Tech Challenge? >>CLICK HERE to fill out our question form.
The Tech Challenge question is published in our weekly eNewsletter with an online answer form. Fill out the form with the details of how you would perform the repair to be entered for the chance to win the prize pack. You can also submit a challenge for future Tech Challenges! A draw is conducted with all shops who answered the question correctly and one is selected as a winner for a prize pack.
Got a Tech Tip you want to share for a future Tech Challenge? >>CLICK HERE to fill out our question form.