Engine Immobiliser System

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: TERMINALS OF ECU

1. CHECK ENGINE SWITCH

(a) Disconnect the F22 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.





(b) If the result is not as specified, there may be a malfunction in the wire harness.

(c) Reconnect the F22 engine switch connector.

(d) Measure the voltage according to the value(s) in the table below.





(d) 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 F58 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.





(b) If the result is not as specified, there may be a malfunction in the wire harness.

(c) Reconnect the F58 certification ECU (smart key ECU assembly) connector.

(d) Measure the resistance and voltage according to the value(s) in the table below.





(d) 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)









3. CHECK ID CODE BOX (IMMOBILISER CODE ECU)

(a) Disconnect the F45 ID code box (immobiliser code ECU) connector.





(b) Measure the resistance and voltage according to the value(s) in the table below.





* If the result is not as specified, there may be a malfunction in the wire harness.

(c) Reconnect the F45 ID code box (immobiliser code ECU) connector.

(d) Measure the voltage according to the value(s) in the table below.





* If the result is not as specified, the ID code box (immobiliser code ECU) may have a malfunction.

(e) Inspect using an oscilloscope.

(1) Waveform 1 (Reference)









(2) Waveform 2 (Reference)









4. CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)

(a) Disconnect the F37 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.





(b) If the result is not as specified, there may be a malfunction in the wire harness.

5. CHECK ECM

HINT
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.









(a) Waveform:

(1) Waveform 1 (Reference)









(2) Waveform 2 (Reference)









6. CHECK RADIO RECEIVER ASSEMBLY

(a) Disconnect the G8 radio receiver 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.





* *: w/ Navigation System

* If the result is not as specified, there may be a malfunction in the wire harness.

(c) Reconnect the G8 radio receiver assembly connector.

(d) Measure the voltage according to the value(s) in the table below.





(d) If the result is not as specified, the radio receiver assembly may have a malfunction.

7. CHECK REMOTE ENGINE STARTER ECU ASSEMBLY

(a) Disconnect the e1 remote engine starter ECU 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.





(b) If the result is not as specified, there may be a malfunction in the wire harness.