PRECAUTION
- PRECAUTION FOR DISCONNECTING THE BATTERY CABLE NOTE: When disconnecting the battery negative (-) terminal, initialize the following system after the terminal is reconnected: System See procedure Power back door system Refer to «INITIALIZATION»(ref-422289-S16028026952011092600000)
- PRECAUTIONS WHEN WORKING ON STEERING LOCK SYSTEM After replacing the steering lock actuator assembly (steering lock ECU), perform the key ID code registration. If the steering lock actuator assembly is replaced, open and close the driver's door. The engine may not start until the driver's door is opened or closed. HINT: Opening and closing the driver's door causes the steering lock actuator assembly (steering lock ECU) to memorize the correct steering lock bar position. If checking for DTCs of the smart key system or if checking the DATA LIST with the engine switch off, make sure that the driver's door is open. HINT: When the engine switch is off, the main body ECU may be in sleep mode. If the main body ECU is in this sleep mode, it will not be possible for Techstream to communicate with it. Opening and closing the driver's door will cause the ECU to exit sleep mode.
- PRECAUTIONS FOR STEERING LOCK ACTUATOR NOTE: If the steering lock actuator assembly (steering lock ECU) is replaced, with the engine switch off and the shift lever in the N position, open and close the driver's door to record the current steering lock position into the steering lock ECU. If this is not performed, the engine may not start.
Scheme 53
Scheme 54
Scheme 55
| Transmitting ECU (transmitter) | Receiving ECU | Signals | Communication Method |
|---|---|---|---|
| Main Body ECU | Steering Lock ECU | Power supply status (to steering lock motor) | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Sleep available status | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Lock / Unlock sensor status | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Steering lock status | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Motor control status | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Diagnostic response status | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Lock / Unlock sensor malfunction | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Power supply malfunction (to steering lock motor) | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Motor driver malfunction | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Lock bar (stuck) status | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Push start status | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Lock / Unlock relay drive status | LIN |
| Steering Lock ECU | Certification ECU (Smart key ECU assembly) Main Body ECU ID Code Box (Immobiliser code ECU) | Engine start control status | LIN |
INPUT AND OUTPUT SIGNALS OF EACH ECU
INITIALIZATION
HINT
In vehicles equipped with the smart key system, the starting function may not operate after recharging or while jump-starting a discharged battery. This condition is most common if the battery voltage drops below 9 V. The following procedure has been developed to address this condition.
Scheme 56
- INITIALIZATION PROCEDURE Confirm that the SHORT fuse is installed. HINT: If the SHORT fuse is not installed, install it at this time. Move the shift lever to the N position. Turn the engine switch off. Open the driver's door. HINT: Opening the driver's door will start an initialization process between the steering lock ECU and the engine room junction block. Depress the brake pedal. Press the "START STOP" switch.