Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Checking the Throttle Position Sensor

Tests 1 - 4:




Test 5:





SYMPTOM
CHECKING THROTTLE POSITION SENSOR OPERATION WITH NO DTC'S

POSSIBLE CAUSES
- TPS voltage change not smooth
- TPS connectors/harness intermittent (D)
- TPS harness/connectors intermittent (C)
- TPS harness/connectors observable (E)
- TPS voltage greater than 0.92 volts with throttle closed