Power Steering Switch

Operation

The power-steering pressure switch functions to convert data as to whether there is or is not a power steering load to LOW-or HIGH-level voltage, and the resulting signals are input to the engine control module. The engine control module, based upon those signals, regulates the idle-speed control motor.

The battery voltage within the engine control module is applied, by way of the resistance, to the power-steering pressure switch. When steering maneuvers are made, the pressure of the power-steering oil increases, thus switching ON the power-steering pressure switch, with the result that the current is grounded. As a result, the power-steering pressure switch voltage changes from HIGH level to LOW level.









Inspection





Harness Inspection