APS senses the driver's acceleration input and sends it to ECM. Using the signal, ECM decides the fuel injection quantity and ignition timing.
Connect voltmeter to the terminals 1 and 4 of APS1 connector.
Supply the terminal 3 with DC 5V.
Check the voltage between the terminals 1 and 4.
Idle : 0.7 ~ 0.8V
WOT : 3.8 ~ 4.4V
Disconnect the voltmeter and supply the terminal 6 with DC 5V.
Connect voltmeter(B) to the terminals 2 and 5 of APS2 connector(A).
Check the voltage between the terninals 2 and 5.
Idle : 0.27 ~ 0.48V
WOT : 1.75 ~ 2.35V
Refer to P0120, P0123, P0220, P0223, P2135 DTC inspection procedures.