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 spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Throttle Position Sensor: Testing and Inspection

NOTE: Perform the following test only when directed.




1. Disconnect the PCM connector.
2. Connect the SST (EMS adapter harness) between the PCM and the vehicle harness connectors.
3. Verify that the throttle valve is at the CTP.
4. Turn the ignition switch to ON.




5. Verify that the PCM terminal 3B voltage within specification.
- If not as specified, adjust the TP sensor.

Specification:
CTP: 0.1 - 1.1 V
WOT: 2.8 - 4.5 V
(Verify that the voltage increase is directly proportioned to the throttle valve opening angle.)