DESCRIPTION
The certification ECU (smart key ECU assembly) generates a request signal and sends it to the door electrical key oscillator built into the front door outside handle assembly (for driver side) at 0.25-second intervals. To detect a key near the driver door, the front door outside handle assembly (for driver side) creates a detection area with a radius of approximately 1.0 m (3.28 ft.) from the driver door at 0.25-second intervals.
DTC B27A1 is detected by the certification ECU (smart key ECU assembly) if an open circuit is detected between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for driver side) terminals (between CLG1 and ANT1, or CG1B and ANT2).
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B27A1 | Open circuit detected between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for driver side) terminals (between CLG1 and ANT1, or CG1B and ANT2). | Front door outside handle assembly (for driver side) Certification ECU (smart key ECU assembly) Wire harness or connector |
Scheme 179
The certification ECU (smart key ECU assembly) generates a request signal and sends it to the door electrical key oscillator built into the front door outside handle assembly (for front passenger side) at 0.25-second intervals. To detect a key near the front passenger door, the front door outside handle assembly (for front passenger side) creates a detection area with a radius of approximately 1.0 m (3.28 ft.) from the front passenger door at 0.25-second intervals.
DTC B27A2 is detected by the certification ECU (smart key ECU assembly) if an open circuit is detected between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for front passenger side) terminals (between CLG2 and ANT1, or CG2B and ANT2).
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B27A2 | Open circuit detected between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for front passenger side) terminals (between CLG2 and ANT1, or CG2B and ANT2). | Front door outside handle assembly (for front passenger side) Certification ECU (smart key ECU assembly) Wire harness or connector |
Scheme 180
The certification ECU (smart key ECU assembly) generates a request signal and sends it to the indoor electrical key oscillator (for front floor). To detect the key inside the cabin, the indoor electrical key oscillator (for front floor) creates a detection area in the cabin.
DTC B27A5 is detected by the certification ECU (smart key ECU assembly) when an open circuit occurs between the certification ECU (smart key ECU assembly) and indoor electrical key oscillator (for front floor) terminals (between CLG5 and CLG3, or CG5B and CLGB).
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B27A5 | Open circuit detected between the certification ECU (smart key ECU assembly) and indoor electrical key oscillator (for front floor) terminals (between CLG5 and CLG3, or CG5B and CLGB). | Indoor electrical key oscillator (for front floor) Certification ECU (smart key ECU assembly) Wire harness or connector |
Scheme 181
The certification ECU (smart key ECU assembly) generates a request signal and sends it to the indoor electrical key oscillator (for rear floor). To detect the key inside the cabin, the indoor electrical key oscillator (for rear floor) creates a detection area in the cabin.
DTC B27A6 is detected by the certification ECU (smart key ECU assembly) when an open circuit occurs between the certification ECU (smart key ECU assembly) and indoor electrical key oscillator (for rear floor) terminals (between CLG6 and CLG4, or CG6B and CLGB).
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B27A6 | Open circuit detected between the certification ECU (smart key ECU assembly) and indoor electrical key oscillator (for rear floor) terminals (between CLG6 and CLG4, or CG6B and CLGB). | Indoor electrical key oscillator (for rear floor) Certification ECU (smart key ECU assembly) Wire harness or connector |
Scheme 182
The certification ECU (smart key ECU assembly) generates a request signal and sends it to the indoor electrical key oscillator (for luggage compartment). To detect the key inside the cabin, the indoor electrical key oscillator (for luggage compartment) creates a detection area in the cabin.
DTC B27A7 is detected by the certification ECU (smart key ECU assembly) when an open circuit occurs between the certification ECU (smart key ECU assembly) and indoor electrical key oscillator (for luggage compartment) terminals (between CLG7 and CLG7, or CG7B and CG7B).
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B27A7 | Open circuit detected between the certification ECU (smart key ECU assembly) and indoor electrical key oscillator (for luggage compartment) terminals (between CLG7 and CLG7, or CG7B and CG7B). | Indoor electrical key oscillator (for luggage compartment) Certification ECU (smart key ECU assembly) Wire harness or connector |
Scheme 183
The certification ECU (smart key ECU assembly) generates a request signal and sends it to the outside electrical key oscillator (for luggage compartment). To detect the key near the driver door, the outside electrical key oscillator (for luggage compartment) creates a detection area towards the area approximately 1.0 m (3.28 ft.) from the luggage compartment door.
DTC B27A8 is detected by the certification ECU (smart key ECU assembly) when an open circuit occurs between the certification ECU (smart key ECU assembly) and outside electrical key oscillator (for luggage compartment) terminals (between CLG8 and CLG3, or CG8B and CLGB).
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B27A8 | Open circuit detected between the certification ECU (smart key ECU assembly and outside electrical key oscillator (for luggage compartment) terminals (between CLG8 and CLG3, or CG8B and CLGB). | Outside electrical key oscillator (for luggage compartment) Certification ECU (smart key ECU assembly) Wire harness or connector |
Scheme 184
The smart access system with push-button start uses the wireless door lock buzzer assembly to perform various vehicle exterior warnings. When the conditions for each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer request signal to the main body ECU (multiplex network body ECU) via CAN communication. The wireless door lock assembly sounds the buzzer according to the signal from the main body ECU (multiplex network body ECU).
When the entry door lock and unlock functions and wireless door lock and unlock functions do not operate, radio wave interference, or a malfunction in the key or signal circuit between the door control receiver and certification ECU (smart key ECU assembly) is suspected. The signal circuit is shared by the entry function and wireless door lock function.
Scheme 185
When the wireless door lock and unlock functions operate, the communication circuit between the door lock receiver and certification ECU (smart key ECU assembly) is normal. When the entry lock and unlock functions do not operate, radio wave interference, a customized entry cancel function, or a communication error between the key and vehicle in the smart communication circuit, is suspected.
If the driver door entry lock function operates normally, but its entry unlock function does not, this means that the request code from the driver door is being output normally. In this case, a malfunction in the touch sensor circuit (from the certification ECU (smart key ECU assembly) to the front door outside handle assembly (touch sensor)) is suspected.
Scheme 186
If the front passenger door entry lock function operates normally, but its entry unlock function does not, this means that the request code from the front passenger door is being output normally. In this case, a malfunction in the touch sensor circuit (from the certification ECU (smart key ECU assembly) to the front door outside handle assembly (touch sensor)) is suspected.
Scheme 187
When the entry lock and unlock functions do not operate only for the driver door, an error in output request codes from the driver door or malfunction in the front door outside handle assembly is suspected. If the entry functions for the other doors operate normally, then the communication circuit between the key and door control receiver is functioning normally. In this case, radio wave interference or a malfunction in the request code sending circuit (from the certification ECU (smart key ECU assembly) to the front door outside handle assembly (for driver side)) is suspected.
Scheme 188
When the entry lock and unlock functions do not operate only for the front passenger door, an error in output request codes from the front passenger door or malfunction in the front door outside handle assembly is suspected. If the entry functions for the other doors operate normally, then the communication circuit between the key and door control receiver is functioning normally. In this case, radio wave interference or a malfunction in the request code sending circuit (from the certification ECU (smart key ECU assembly) to the front door outside handle assembly (for front passenger side)) is suspected.
Scheme 189
If the driver door entry unlock function operates normally, but its entry lock function does not, this means that the request code from the driver door is being output normally. In this case, a malfunction in the lock sensor circuit (from the certification ECU (smart key ECU assembly) to the front door outside handle assembly (lock sensor)) is suspected.
Scheme 190
If the front passenger door entry unlock function operates normally, but its entry lock function does not, this means that the request code from the front passenger door is being output normally. In this case, a malfunction in the lock sensor circuit (from the certification ECU (smart key ECU assembly) to the front door outside handle assembly (lock sensor)) is suspected.
Scheme 191
If the room oscillator does not recognize a key, either of the following may be the cause: 1) communication between the indoor electrical key oscillator (for front floor) and key cannot be performed; or 2) communication between the indoor electrical key oscillator (for rear floor) and key cannot be performed.
Scheme 192
When the luggage compartment door entry unlock function does not operate, one of the following may be the cause: 1) luggage compartment door opener outer switch malfunction; 2) communication malfunction between the outside electrical key oscillator (for luggage compartment) and certification ECU (smart key ECU assembly); 3) the main body ECU (multiplex network body ECU) receives the luggage compartment door opener outer switch ON signal, but is unable to send the signal to the certification ECU (smart key ECU assembly) through CAN communication; or 4) certification ECU (smart key ECU assembly) malfunction.
Scheme 193
If the entry luggage compartment lock-in prevention function does not operate, either of the following may be the cause: 1) communication between the indoor electrical key oscillator (for luggage compartment) and electrical key antenna cannot be performed; or 2) a malfunction in the certification ECU (smart key ECU assembly).
Scheme 194
The smart access system with push-button start 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.