Smart Key System (for Entry Function)

THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Entry Function): TERMINALS OF ECU

1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Disconnect the D25 certification ECU (smart key 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.





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 voltage and check for pulses 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.

2. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

(a) Disconnect the 2C and 2F main body ECU (driver side junction block assembly) connectors.





(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 the connector disconnected.





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

(c) Reconnect the 2C and 2F main body ECU (driver side junction block assembly) connectors.

(d) Measure the voltage and check for pulses according to the value(s) in the table below.









*1: w/o Back Door Closer System

*2: w/ Back Door Closer System

If the result is not as specified, the main body ECU (driver side junction block assembly) may have a malfunction.