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 D88 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 the connector disconnected.





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

(c) Reconnect the D88 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 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU

(a) Turn the ignition switch off.









(b) Remove the main body ECU from the instrument panel junction block assembly Removal.

HINT
The instrument panel junction block assembly connectors must all be connected.

(c) Measure the voltage and resistance 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 or the instrument panel junction block assembly.

(d) Reinstall the main body ECU Removal.









(e) Reconnect the D12 and D13 main body ECU connectors.

(f) 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.

HINT
Measure the values on the wire harness side with the connectors disconnected.

(g) Reconnect the main body ECU connectors.

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









If the result is not as specified, the main body ECU or instrument panel junction block assembly may have a malfunction.

3. ACCESSORY METER ASSEMBLY

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









If the result is not as specified, the accessory meter assembly may have a malfunction.

4. CHECK SLIDE DOOR MOTOR UNIT LH (POWER SLIDE DOOR ECU LH)

(a) Disconnect the J9 connector from the power slide door ECU LH.





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





5. CHECK SLIDE DOOR MOTOR UNIT RH (POWER SLIDE DOOR ECU RH)

(a) Disconnect the I8 connector from the power slide door ECU RH.





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