Engine Immobiliser System (w/o Smart Key System)
ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM (w/o Smart Key System): TERMINALS OF ECU
TERMINALS OF ECU
1. CHECK TRANSPONDER KEY AMPLIFIER
(a) Disconnect the E25 amplifier connector and measure the resistance between the terminal of the wire harness side connector and body ground.
If the result is not as specified, there may be a malfunction on the wire harness side.
(b) Reconnect the E25 amplifier connector and measure the resistance and voltage of each terminal of the connector.
If the result is not as specified, the amplifier may have a malfunction.
(c) Inspect using an oscilloscope.
(1) Waveform 1 (Reference)
(2) Waveform 2 (Reference)
2. CHECK TRANSPONDER KEY ECU ASSEMBLY
(a) Disconnect the E15 ECU connector and measure the resistance and voltage between each terminal of the wire harness side connector.
If the result is not as specified, there may be a malfunction on the wire harness side.
(b) Reconnect the E15 ECU connector and measure the voltage of each terminal of the connector.
If the result is not as specified, the ECU may have a malfunction.
(c) Inspect using an oscilloscope.
(1) Waveform 1 (Reference)
(2) Waveform 2 (Reference)
(3) Waveform 3 (Reference)
(4) Waveform 4 (Reference)
3. CHECK ECM
(a) Disconnect the C24*1 or C55*2 ECM connector and measure the resistance between the terminal of the wire harness side connector and body ground.
*1: for 2AZ-FE
*2: for 2GR-FE
If the result is not as specified, there may be a malfunction on the wire harness side.
(b) Reconnect the C24*1 or C55*2 ECM connector. Measure the voltage between each terminal of the connector according to the value(s) in the table below.
*1: for 2AZ-FE
*2: for 2GR-FE
If the result is not as specified, the ECM may have a malfunction.
(c) Inspect using an oscilloscope.
(1) Waveform 1 (Reference)
*1: for 2AZ-FE
*2: for 2GR-FE
(2) Waveform 2 (Reference)
*1: for 2AZ-FE
*2: for 2GR-FE