Component Inspection

Ignition "OFF"
Disconnect TPS connector
Measure resistance between terminals 2 and 3 of the TPS connector (Component side)
Specification : Approx. 1.6 ~ 2.4 kΩ at all throttle position

Fig 1: Measuring Resistance Between Terminals 2 And 3 Of TPS Connector
With still TPS connector disconnected, measure resistance between terminals 1 and 2 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.
Specification : 0.71 ~ 1.38 kΩ at closed throttle valve, 2.7 kΩ at wide open throttle

Fig 2: Measuring Resistance Between Terminals 1 And 2 Of Sensor Connector
Is resistance within the specification?
YES
- 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
- 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