Engine Immobiliser System
TERMINALS OF ECU1. CHECK TRANSPONDER KEY AMPLIFIER
Terminals Of Control Module/Pinouts (Part 1):
a. Disconnect the T7 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.
Terminals Of Control Module/Pinouts (Part 2):
b. Reconnect the T7 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
Terminals Of Control Module/Pinouts (Part 1):
a. Disconnect the T14 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.
Terminals Of Control Module/Pinouts (Part 2):
b. Reconnect the T14 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
Terminals Of Control Module/Pinouts-Check ECM (Part 1):
Terminals Of Control Moldule/Pinouts-Check ECM (Part 2):
a. Disconnect the H14 ECM 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.
Oscilloscope Waveforms:
b. Reconnect the H14 ECM connector. Measure the voltage between each terminal of the connector according to the value(s) in the table.
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)