Smart Key System
TERMINALS OF ECUTerminals Of Control Module / Pinouts:
1. CHECK THEFT WARNING ECU
a. Disconnect the T5 ECU connector.
b. Measure the resistance and voltage of the wire harness side connector.
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 and frequency of the connector.
If the result is not as specified, the theft warning ECU may have a malfunction.
Terminals Of Control Module / Pinouts:
2. CHECK STEERING LOCK ECU
a. Disconnect the S46 ECU connector.
b. Measure the resistance and voltage of the wire harness side connector.
If the result is not as specified, there may be a malfunction on the wire harness side.
c. Reconnect the S46 ECU connector.
d. Check the resistance and voltage of the connector.
If the result is not as specified, the steering lock ECU may have a malfunction.
Oscilloscope Waveforms:
e. Inspect using an oscilloscope.
Terminals Of Control Module / Pinouts:
3. CHECK DRIVER DOOR ECU
a. Disconnect the D25 ECU connector.
b. Measure the resistance and voltage of the wire harness side connector.
If the result is not as specified, there may be a malfunction on the wire harness side.
c. Reconnect the D25 ECU connector.
d. Measure the frequency and voltage of the connector.
If the result is not as specified, the driver door ECU may have a malfunction.
Terminals Of Control Module / Pinouts:
4. CHECK PASSENGER DOOR ECU
a. Disconnect the F17 ECU connector.
b. Measure the resistance and voltage of the wire harness side connector.
If the result is not as specified, there may be a malfunction on the wire harness side.
c. Reconnect the F17 ECU connector.
d. Measure the frequency and voltage of the connector.
If the result is not as specified, the passenger door ECU may have a malfunction.
Terminals Of Control Module / Pinouts:
5. CHECK REAR DOOR LH ECU
a. Disconnect the R12 and R13 ECU connectors.
b. Measure the resistance and voltage of the wire harness side connectors.
If the result is not as specified, there may be a malfunction on the wire harness side.
c. Reconnect the R23 and RB ECU connectors.
d. Measure the frequency and voltage of the connectors. Standard:
If the result is not as specified, the rear door LH ECU may have a malfunction.
Terminals Of Control Module / Pinouts:
6. CHECK REAR DOOR RH ECU
a. Disconnect the R14 and R15 ECU connectors.
b. Measure the resistance and voltage of the wire harness side connectors.
If the result is not as specified, there may be a malfunction on the wire harness side.
c. Reconnect the R14 and R15 ECU connectors.
d. Measure the frequency and voltage of the connectors
If the result is not as specified, the rear door RH ECU may have a malfunction.
Terminals Of Control Module / Pinouts:
7. CHECK LUGGAGE ROOM J/B ASSEMBLY (LUGGAGE ROOM J/B ECU)
a. Disconnect the LA and LL J/B, L12 and L14 ECU connectors.
b. Measure the resistance and voltage of the wire harness side connectors.
If the result is not as specified, there may be a malfunction on the wire harness side.
c. Reconnect the LA and LL J/B, L12 and L14 ECU connectors.
d. Measure the resistance of the connector
If the result is not as specified, the luggage room J/B ECU may have a malfunction.