Output Components

The PCM is responsible for the control and operation of many output components. The PCM controls many components with an electronic switch called an output driver that completes a ground circuit when turned ON. The PCM monitors the output components for the proper response to the PCM commands. Components where functional monitoring is not feasible will be monitored for circuit continuity and out-of-range values if applicable.

Output components to be monitored include, but are not limited to the following circuits:

• The throttle actuator control (TAC) motor
• The rocker arm oil control solenoid valve
• The exhaust gas recirculation (EGR) valve
• The fuel pump relay
• The evaporative emission (EVAP) system solenoids
• The malfunction indicator lamp (MIL) control
• The A/C compressor controls
• The electronic transaxle controls