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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Pinout Values and Diagnostic Parameters

INSPECT ECM (2TR-FE)
a. Connect the connector to the ECM and inspect the wire harness side connector from the back side, as shown in the table.

WAVEFORM 1:

Engine Coolant Temperature Sensor Signal

A Changes in accordance with the engine coolant temperature

WAVEFORM 2:

Engine Speed Signal

HINT: The wavelength becomes shorter as the engine rpm increases.

INSPECT ECM (1GR-FE)
a. Connect the connector to the ECM and inspect the wire harness side connector from the back side, as shown in the table.

WAVEFORM 1:

Engine Coolant Temperature Sensor Signal

A Changes in accordance with the engine coolant temperature

WAVEFORM 2:

Engine Speed Signal

HINT: The wavelength becomes shorter as the engine rpm increases.