Engine Immobilizer System

TERMINALS OF ECU

1. INSPECT THEFT WARNING ECU

Terminals Of ECU - Theft Warning ECU Part 1:

Terminals Of ECU - Theft Warning ECU Part 2:

a. Disconnect the T7 ECU connector, and check the voltage or continuity between each terminal of the wire harness side connector.
If the result is not as specified, the wire harness side may malfunction.

Terminals Of ECU - Theft Warning ECU Part 3:

b. Reconnect the T7 ECU connector, and check the voltage between each terminal of the connector.

2. INSPECT TRANSPONDER KEY ECU

Terminals Of ECU - Transponder Key ECU Part 1:

Terminals Of ECU - Transponder Key ECU Part 2:

a. Disconnect the the T13 ECU connector, and check the voltage or continuity between each terminal of the wire harness side connector.

Terminals Of ECU - Transponder Key ECU Part 3:

b. Reconnect the T7 3 ECU connector, and check the voltage between each terminal of the connector.

Oscilloscope Waveform Part 1:

Oscilloscope Waveform Part 2:

c. Inspection using on oscilloscope.

3. INSPECT ECM

Terminals Of ECU - ECM Part 1:

Terminals Of ECU - ECM Part 2:

a. Disconnect the the E3, E5 and E6 ECU connectors and check the voltage or continuity between each terminal of the wire harness side connectors.

Oscilloscope Waveform Part 1:

Oscilloscope Waveform Part 2:

b. Inspection using an oscilloscope.