3. Check TPS

1. Turn ignition switch to OFF position and disconnect TPS connector.
2. Measure resistance between terminals 1 and 2 of the TPS.
3. Measure resistance between terminals 2 and 3 of the TPS.
   Fig 1: Checking TPS Resistance

   Courtesy of HYUNDAI MOTOR CO.
   • Refer to DTC P0121  SPECIFICATIONS   for more information. 

Is resistance within specification? 

Yes: Go to next step.

No: Replace TPS.