Checking the Throttle Position Sensor

Tests 1 - 4:

Tests 5:

SYMPTOM
CHECKING THROTTLE POSITION SENSOR OPERATION WITH NO DTC'S

POSSIBLE CAUSES
- TPS voltage change not smooth
- TPS connectors/harness intermittent problem (d)
- TPS harness/connectors intermittent problem (c)
- TPS harness/connectors observable problem
- TPS voltage greater than 0.92 volts with throttle closed