Smart Entry System
TERMINALS OF ECU1. CHECK SMART ECU
Terminals Of ECU/Pinouts:
a. Disconnect the S11 ECU connector.
b. Measure the resistance and voltage of each terminal of the wire harness side connector.
Standard:
If the result is not as specified, there may be a malfunction on the wire harness side.
c. Reconnect the S11 ECU connector.
d. Measure the voltage and frequency of each terminal of the connector.
Terminals Of ECU/Pinouts:
Standard:
If the result is not as specified, the ECU may have a malfunction.
Terminals Of ECU/Pinouts:
2. CHECK INSTRUMENT PANEL J/B ASSY (MULTIPLEX NETWORK BODY ECU)
a. Disconnect the 1A, 1B and 1E J/B connectors.
b. Measure the voltage and resistance between each terminal of the wire harness side connector and body ground.
Standard:
If the result is not as specified, there may be a malfunction on the wire harness side.
c. Reconnect the 1A, 1B and 1E J/B ECU connectors.
d. Measure the voltage between each terminal of the connectors.
Standard:
If the result is not as specified, the body ECU may have a malfunction.
3. CHECK TRANSPONDER KEY ECU
Terminals Of ECU/Pinouts:
a. Disconnect the T5 ECU connector.
b. Measure the resistance and voltage of each terminal of the wire harness side connector.
Standard:
If the result is not as specified, there may be a malfunction on the wire harness side.
c. Reconnect the T5 ECU connector.
d. Measure the voltage of each terminal of the connector.
Oscilloscope Waveforms:
Standard:
If the result is not as specified, the ECU may have a malfunction.