DESCRIPTION
The smart key system uses the combination meter buzzer to perform various vehicle interior warnings. When the conditions for each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer signal to the combination meter assembly, and the combination meter buzzer sounds.
CAUTION / NOTICE / HINT
NOTICE:
The smart key system (for entry function) uses a multiplex communication system
(LIN communication system) and CAN communication system. Inspect the communication
function by following How to Proceed with Troubleshooting (See page
). Troubleshoot the smart key system (for entry
function) after confirming that the communication system is functioning properly.
PROCEDURE
1. |
CHECK COMBINATION METER ASSEMBLY (OPERATION) |
(a) When the engine switch is on (IG) and the shift lever is in R, check that the combination meter buzzer sounds.
OK:
Combination meter buzzer sounds.
OK | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
NG | ![]() |
GO TO METER / GAUGE SYSTEM (Proceed to Problem Symptoms Table) |
MIL Circuit
DESCRIPTION
The MIL (Malfunction Indicator Lamp) is used to indicate vehicle malfunctions
detected by the ECM. By turning the ignition switch to ON, power is supplied to
the MIL circuit, and the ECM provides the circuit ground which illuminates the MIL.
...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / Trouble Codes.
(e) Check the details of the DTC(s) (See pa ...
Automatic High Beam System (B124B)
DESCRIPTION
The DTC is stored when the main body ECU (driver side junction block assembly)
detects malfunctions in the automatic high beam system.
DTC No.
DTC Detection Condition
Trouble Area
B124B
...