Technician A says that a solenoid that is controlled by a computer is switched on or off on the ground side of the circuit. Technician B says a Chrysler-built unit, when operating in "limp-in" mode, will allow operation in all gear ranges but at reduced efficiency. Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because it is common for computer-controlled solenoids, including those in automotive applications, to be switched on the ground side of the circuit. This allows the computer to control the solenoid by completing or interrupting the circuit to ground. Technician B is incorrect because when a Chrysler-built unit operates in "limp-in" mode, it typically restricts the transmission to operate in only one gear (often second gear) to allow the vehicle to be driven to a repair facility, not in all gear ranges.

Technician a Says That a Solenoid That Is Controlled by a Computer