Electric Throttle Body System Operation Check

Remove air cleaner outlet hose with ignition mode of keyless push start system in "OFF", see AIR CLEANER COMPONENTS .
Push engine switch to change the ignition mode to "ON".
Check electric throttle body system as follows.
If faulty condition is found, go to step 4).
1. Depress accelerator pedal gradually and check that throttle valve moves smoothly until it opens fully.
2. Release accelerator pedal and check that throttle valve moves back to applicable position.
  Throttle valve opening angle "a":
  
  3 to 15° from completely closed position (1)
  
  Fig 1: Identifying Throttle Valve Opening Angle
  Courtesy of SUZUKI OF AMERICA CORP.
Check the following points:
If check results are not satisfactory, replace throttle body assembly.
- Wire harness and connections
- APP sensor: APP SENSOR INSPECTION
- TP sensor: THROTTLE POSITION (TP) SENSOR PERFORMANCE CHECK
- Throttle motor: THROTTLE MOTOR CHECK