Pinout Values and Diagnostic Parameters

ENGINE IMMOBILISER: ENGINE IMMOBILISER SYSTEM: TERMINALS OF ECU

1. CHECK TRANSPONDER KEY AMPLIFIER





(a) Disconnect the T9 amplifier connector.

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





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

(c) Reconnect the T9 amplifier connector.

(d) 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 on the amplifier.

(e) Inspect using an oscilloscope.

(1) Waveform 1









(2) Waveform 2









2. CHECK TRANSPONDER KEY ECU ASSEMBLY





(a) Disconnect the T10 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 on the wire harness side.

(c) Reconnect the T10 ECU connector.

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





If the result is not as specified, there may be a malfunction on the ECU.

(e) Inspect using an oscilloscope.

(1) Waveform 1









(2) Waveform 2









(3) Waveform 3









(4) Waveform 4









3. CHECK ECM (for 2TR-FE)





(a) Disconnect the E4 ECM connectors.

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





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

(c) Reconnect the E4 ECM connectors.

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





If the result is not as specified, the ECM may have a malfunction.

(e) Inspect using an oscilloscope.

(1) Waveform 1









(2) Waveform 2









4. CHECK ECM (for 1GR-FE)





(a) Disconnect the E11 ECM connectors.

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





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

(c) Disconnect the E11 ECM connectors.

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





If the result is not as specified, the ECM may have a malfunction.

(e) Inspect using an oscilloscope.

(1) Waveform 1









(2) Waveform 2