Operation CHARM: Car repair manuals for everyone.

Engine Immobiliser System

TERMINALS OF ECU


Terminals Of ECU/Pinouts:






1. CHECK TRANSPONDER KEY AMPLIFIER
a. Disconnect the I17 amplifier connector, and check the continuity of each terminal of the wire harness side connector.


Standard:






If the result is not as specified, there may be a malfunction on the wire harness side.

b. Reconnect the I17 amplifier connector, and check the continuity or voltage of each terminal of the connector.


Standard:






If the result is not as specified, the amplifier may malfunction.


Engine Immobilizer System / Oscilloscope Waveform:




Engine Immobilizer System / Oscilloscope Waveform:






c. Inspect using an oscilloscope.


Terminals Of ECU/Pinouts:






2. CHECK TRANSPONDER KEY ECU ASSY
a. Disconnect the the T8 ECU connector, and check the voltage or continuity between each terminal of the wire harness side connector.



Standard:






If the result is not as specified, there may be a malfunction on the wire harness side.

b. Reconnect the T8 ECU connector, and check the voltage between each terminal of the connector.


Standard:




Engine Immobilizer System / Oscilloscope Waveforms:






c. Inspect using an oscilloscope.


Terminals Of ECU/Pinouts:






3. CHECK ECM
a. Disconnect the the E6, E7 and E8 ECU connectors, and check the voltage or continuity between each terminal of the wire harness side connectors.


Standard:




Engine Immobilizer System / Oscilloscope Waveforms:






b. Inspect using an oscilloscope.
If the result is not as specified, there may be a malfunction on the wire harness side.