Connect GDS to Data Link Connector (DLC).
Warm engine up to normal operating temperature.
Turn "OFF" electrical devices and A/C.
Monitor "ACCEL PEDAL SENSOR", "ACCEL PEDAL SENSOR 1", "ACCEL PEDAL SENSOR 2" parameter on the "Current Data" with GDS.
Specification : at idle(0%) ACCEL PEDAL SENSOR 1 : 600mV~800mV
Fig.1) APS output data at warm idle. Check if output value is rising and "ACCEL PEDAL SENSOR 2" is 1/2 of "ACCEL PEDAL SENSOR 1" signal.
Fig.2) APS output data at wide open throttle status.