Engine Immobilizer System (w/ Smart Key System)

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

TERMINALS OF ECU

1. CHECK ENGINE SWITCH
(a) Disconnect the D13 engine switch 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 in the wire harness.
(c) Reconnect the D13 engine switch connector.
(d) Measure the voltage according to the value(s) in the table below.





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




(1) Waveform 1 (Reference)








(2) Waveform 2 (Reference)








(3) Waveform 3 (Reference)





2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
(a) Disconnect the D25 certification ECU (smart 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 in the wire harness.
(c) Reconnect the D25 certification ECU (smart 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 certification ECU (smart 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)








(5) Waveform 5 (Reference)





3. CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)
(a) Disconnect the D17 steering lock ECU (steering lock actuator 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 in the wire harness.
4. 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) Waveform:




(1) Waveform 1 (Reference)








(2) Waveform 2 (Reference)





5. 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) Waveform:




(1) Waveform 1 (Reference)








(2) Waveform 2 (Reference)





6. CHECK POWER MANAGEMENT CONTROL ECU
(a) Disconnect the D43 power management control ECU 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 in the wire harness.
7. 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 and resistance according to the value(s) in the table below.





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