Engine Immobilizer System (w/o Smart Key System)

THEFT DETERRENT / KEYLESS ENTRY: ENGINE Immobilizer SYSTEM (w/o Smart Key System): TERMINALS OF ECU

TERMINALS OF ECU

1. CHECK TRANSPONDER KEY AMPLIFIER
(a) Disconnect the D21 transponder key amplifier connector.





(b) Measure the resistance according to the value(s) in the table below.
HINT: Measure the values on the wire harness side with connector disconnected.





If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the D21 transponder key amplifier connector.
(d) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, the transponder key amplifier may have a malfunction.
(e) Inspect using an oscilloscope.




(1) Waveform 1 (Reference)








(2) Waveform 2 (Reference)





2. CHECK TRANSPONDER KEY ECU ASSEMBLY
(a) Disconnect the D22 transponder key ECU assembly connector.





(b) Measure the resistance and voltage according to the value(s) in the table below.
HINT: Measure the values on the wire harness side with connector disconnected.





If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the D22 transponder key ECU assembly connector.
(d) Measure the resistance and voltage according to the value(s) in the table below.





If the result is not as specified, the transponder key ECU assembly may have a malfunction.
(e) Inspect using an oscilloscope.




(1) Waveform 1 (Reference)








(2) Waveform 2 (Reference)








(3) Waveform 3 (Reference)








(4) Waveform 4 (Reference)





3. CHECK ECM (for 2GR-FE)
(a) The values listed under "Specified Condition" are reference values. Because waterproof connectors are used for ECM, inspections can not be performed with the connectors connected.









(b) Inspect using an oscilloscope.




(1) Waveform 1 (Reference)








(2) Waveform 2 (Reference)





4. CHECK ECM (for 1AR-FE)
(a) The values listed under "Specified Condition" are reference values. Because waterproof connectors are used for ECM, inspections can not be performed with the connectors connected.









(b) Inspect using an oscilloscope.




(1) Waveform 1 (Reference)








(2) Waveform 2 (Reference)





5. ACCESSORY METER ASSEMBLY
(a) Disconnect the F2 accessory meter assembly connector.





(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT: Measure the values on the wire harness side with connector disconnected.





If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the F2 accessory meter assembly connector.
(d) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, the accessory meter assembly may have a malfunction.