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 L62 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 L62 certification ECU (smart key ECU assembly) connector.

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

* *: w/ Entry System Back Door Open Function

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 (MULTIPLEX NETWORK BODY ECU)

(a) Disconnect the 2B and 2C junction block connectors.

Text in Illustration

(b) Disconnect the A and L8* main body ECU connector.

(c) 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 connectors disconnected.

*: LED Headlight Type

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

(d) Reconnect the 2B and 2C junction block connectors.

(e) Reconnect the A main body ECU connector.

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

* *1: w/o Entry System Back Door Open Function

If the result is not as specified, the main body ECU (multiplex network body ECU) may have a malfunction.

3. COMBINATION METER ASSEMBLY

(a) Disconnect the L27 combination meter 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 L27 combination meter assembly connector.

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

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