Engine Immobilizer System
TERMINALS OF ECU1. CHECK TRANSPONDER KEY AMPLIFIER (COIL)
a. Disconnect the I14 amplifier connector, and check the resistance between the terminal of the wire harness side connector and body ground.
Standard:
If the result is not as specified, there may be a malfunction on the wire harness side.
b. Reconnect the I14 amplifier connector, and check the resistance or voltage of each terminal of the connector.
Standard:
If the result is not as specified, the amplifier may have a malfunction.
c. Inspect using an oscilloscope.
2. CHECK TRANSPONDER KEY ECU ASSY
a. Disconnect the T6 ECU connector, and check the voltage and resistance 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 T6 ECU connector, and check the voltage between each terminal of the connector.
Standard:
If the result is not as specified, the ECU may have a malfunction.
c. Inspect using an oscilloscope.
3. CHECK ECM
a. Disconnect the E4 and E7 ECM connectors, and check the voltage or resistance between each terminal of the wire harness side connectors.
Standard:
If the result is not as specified, there may be a malfunction on the wire harness side.
b. Inspect using an oscilloscope.