APP (Accelerator Pedal Position) Sensor Inspection

Remove accelerator pedal assembly.
Check APP sensor output voltage as follows.
If faulty condition is found, replace accelerator pedal assembly (incorporated with APP sensor). Refer to Accelerator Pedal Assembly (Incorporating APP Sensor) Removal and Installation
1. Connect 3 new 1.5 V batteries (1) in series and check that total voltage is 4.5 - 5.0 V.
2. Connect voltmeter (2) and batteries to APP sensor as shown in figure.
  
  Fig 1: Connecting Voltmeter And Batteries To APP Sensor (Main)
  Courtesy of SUZUKI OF AMERICA CORP.
  
  Fig 2: Connecting Voltmeter And Batteries To APP Sensor (Sub)
  Courtesy of SUZUKI OF AMERICA CORP.
3. Check that voltage varies depending on accelerator opening angle as the following graph.
  
  Fig 3: APP Sensor Voltage Output Graph
  Courtesy of SUZUKI OF AMERICA CORP.