Component Inspection

■ Check MAPS Performance 

1. IG "OFF" and install a GDS.
2. Connect probe to MAPS and TPS to check signal waveform by using oscilloscope function.
3. ENG "ON" and monitor signal waveform during acceleration and deceleration.

   Specification:  Signal waveform will be displayed as follows.

   Pressure (kPa)	Voltage (V)
   20	0.79
   46.66	1.84
   101.32	4.0

   Fig 1: Screen Display - Signal Waveform Of MAPS And TPS

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 2: Checking Signal Waveform Of MAPS And TPS

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 3: MAPS And TPS Connector End View

   Courtesy of HYUNDAI MOTOR AMERICA
4. Is the relationship between the MAP and the TPS correct?

   YES 

   • Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair " procedure.

   NO 

   • Substitute with a known - good MAPS and check for proper operation. If the problem is corrected, replace MAPS and go to "Verification of Vehicle Repair " procedure.