Component Inspection

Ignition "OFF"
Disconnect TPS connector.
Measure resistance between terminals 1 and 2 of the sensor connector (Component side).
1. Specification: Approx. 1.6~2.4 kΩ at all throttle position
  
  Fig 1: Measuring Resistance Between Terminals 1 And 2 Of Sensor Connector (Component Side)
With still TPS connector disconnected, measure resistance between terminals 1 and 3 of the sensor connector (Component side).
Operate the throttle valve slowly from the idle position to the full open position and check the resistance changes smoothly in proportion with the throttle valve opening angle.
1. Specification: 0.71~1.38 kΩ at closed throttle valve, 2.2~3.4 kΩ at wide open throttle
Is resistance within the specification?
YES
1. Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
1. Check TPS for contamination, deterioration, or damage. Substitute with a known-good TPS and check for proper operation. If the problem is corrected, replace TPS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.