A high-side driver controlled heated seat grid system is being diagnosed. The connector from the control module is backprobed and a voltmeter connected to output circuit from the controller to the seat grid. When the system is activated, the voltmeter reads zero volts. Technician A says this system may deactivate the system if a fault is detected. Technician B says the control module is faulty. Who is correct?

Question

Quizplus · Accepted Answer

Technician A is correct in stating that the system may deactivate if a fault is detected, which can result in zero volts being read on the output circuit. Technician B's conclusion that the control module is faulty is premature and cannot be determined without further diagnosis.

A High-Side Driver Controlled Heated Seat Grid System Is Being