DESCRIPTION
This DTC is stored when a malfunction in the IG1 circuit, IG2 circuit or IG hold circuit in the certification ECU (smart key ECU assembly) is detected.
HINT
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2271 | When either of the following conditions is met (1-trip detection logic*): The IG1 or IG2 circuit in the certification ECU (smart key ECU assembly) is malfunctioning. The IG hold circuit in the certification ECU (smart key ECU assembly) is malfunctioning. | SMART fuse Certification ECU (smart key ECU assembly) Wire harness or connector | IG ON |
- *: Only detected while a malfunction is present and the engine switch is on (IG).
HINT
- The IG1 and IG2 circuits activate the IG1 and IG2 relays.
- After the IG1 and IG2 circuits turn on, even if the CPU operates incorrectly, the IG hold circuit maintains the power source mode in on (IG).
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| The engine switch cannot be turned on (IG) (the engine cannot be started). | The power source mode cannot be changed to on (IG). |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 65
This DTC is stored when a malfunction in the ACC output circuit is detected. The ACC output circuit is the circuit that goes from the ACC output terminal of the certification ECU (smart key ECU assembly) to the ACC relay.
HINT
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2274 | Malfunction in the ACC relay circuit in the certification ECU (smart key ECU assembly) or in the external circuit (1-trip detection logic*). HINT: When the voltage at terminal ACCD is not at the standard, the system is determined to be malfunctioning. | SMART fuse ACC relay (Instrument panel junction block assembly) Certification ECU (Smart key ECU assembly) Wire harness or connector | Wait 10 seconds after turning the engine switch on (ACC) or on (IG), and then wait another 10 seconds after turning the engine switch off. |
- *: Only detected while a malfunction is present.
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| If there is a malfunction due to the relay being stuck on, the ACC relay does not turn off even though the engine switch is off. If there is a malfunction due to the relay being stuck off, the ACC relay does not turn on even though the engine switch is on (ACC). HINT: The engine switch can be turned on (IG) and the engine can be started. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 66
This DTC is stored when a malfunction in the water submersion detection circuit in the certification ECU (smart key ECU assembly) is detected.
HINT
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2277 | The water submersion detection circuit in the certification ECU (smart key ECU assembly) detects water submersion (1-trip detection logic*). | Submersion of certification ECU (smart key ECU assembly) in water Certification ECU (smart key ECU assembly) | Wait 300 seconds after connecting the cable to the negative (-) battery terminal. |
- *: Only detected while a malfunction is present.
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| The engine switch cannot be turned off and the engine cannot be started. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
DTC B2282 is stored when the vehicle speed signal sent by the combination meter assembly via direct line and the vehicle speed signal sent via CAN communication do not match.
DTC B2283 is stored when a malfunction in the vehicle speed sensor is detected.
HINT
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2282 | The vehicle speed signal sent by the combination meter assembly via direct line and the vehicle speed signal sent via CAN communication (1-trip detection logic*) do not match. | SMART fuse Meter/gauge system Certification ECU (smart key ECU assembly) Junction connector Wire harness or connector | Drive the vehicle for 20 seconds at a vehicle speed of 25 km/h (16 mph) or more, and then drive the vehicle at a vehicle speed of less than 5 km/h (3 mph) for 20 seconds. |
| B2283 | Either of the of the following malfunctions is detected (a vehicle speed sensor malfunction is detected) (1-trip detection logic*) Vehicle speed signal malfunction detection 1: Excessive deceleration is detected Vehicle speed signal malfunction detection 2: Engine speed linked detection | SMART fuse Meter/gauge system Certification ECU (smart key ECU assembly) Junction connector Wire harness or connector | Run the engine at an engine speed of 2000 rpm or more for 330 seconds. |
- *: Only detected while a malfunction is present and the engine switch is on (IG).
| DTC Code | Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|---|
| B2282 | When the signal sent via either direct line or CAN communication is malfunctioning and indicates that the vehicle speed is 0 km/h (0 mph), there is no effect on vehicle behavior. When the signal sent via either direct line or CAN communication is malfunctioning and indicates that the vehicle is moving, the engine switch cannot be turned from on (IG) to off. | |
| B2283 | The power source mode is changed to off (the engine is stopped) by pressing the engine switch while the vehicle is being driven. With the electrical key transmitter sub-assembly in the cabin, even if an engine start operation is performed, the engine does not start. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 67
HINT
- A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter. The signal is changed to a pulse signal at the transistor in the combination meter. Each ECU controls the respective system based on the pulse signal.
- If a short occurs in an ECU, all systems in the diagram above will not operate normally.
This DTC is stored when the brake signal sent via direct line and the brake signal sent via CAN communication do not match.
HINT
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2284 | The brake signal sent via direct line and the brake signal sent via CAN communication (1-trip detection logic*) do not match. | ECU-B NO. 1fuse STOP fuse Certification ECU (smart key ECU assembly) Wire harness or connector | Connect the cable to the negative (-) battery terminal, release the brake pedal and wait 20 seconds or more. Then depress the brake pedal for 20 seconds or more. |
- *: Only detected while a malfunction is present and the engine switch is on (IG).
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| With the electrical key transmitter sub-assembly in the cabin, even if an engine start operation is performed, the engine does not start (the indicator in the combination meter is not illuminated in green). However, the engine can be started by turning the engine switch on (ACC) and then pressing and holding it. If there is a malfunction when the direct line is on, the engine can be started by pressing the engine switch with the brake pedal released. If there is a malfunction when the direct line is off, the engine cannot be started by pressing the engine switch with the brake pedal depressed. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 68
This DTC is stored when the steering lock position signal sent by the steering lock ECU (steering lock actuator assembly) via direct line and the steering lock position signal sent via LIN communication do not match.
HINT
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2285 | The steering lock position signal sent by the steering lock ECU (steering lock actuator assembly) via direct line and the steering lock position signal sent via LIN communication (1-trip detection logic*) do not match. | SMART fuse Steering lock ECU (steering lock actuator assembly) Certification ECU (smart key ECU assembly) Wire harness or connector | Disconnect the cable from the negative (-) battery terminal, wait 30 seconds and then reconnect the cable to the negative (-) battery terminal. Wait 40 seconds or more with the engine switch off (with the steering wheel locked), then turn the engine switch on (ACC) (with the steering unlocked) and wait 40 seconds or more. |
- *: Only detected while a malfunction is present and the engine switch is on (IG).
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| The engine cannot be started. | The ECU does not send an engine start request. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 69
These DTCs are stored when the engine speed signal sent by the ECM via direct line and the engine speed signal sent via CAN communication do not match.
HINT
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2286 | The engine speed signal sent by the ECM via direct line and the engine speed signal sent via CAN communication (1-trip detection logic*) do not match. | SMART fuse Engine control system Certification ECU (Smart key ECU assembly) Wire harness or connector | Disconnect the cable from the negative (-) battery terminal, wait 30 seconds and reconnect the cable to the negative (-) battery terminal. Wait 20 seconds or more with the engine switch off, then start the engine and maintain an engine speed of 1000 rpm or more for 20 seconds or more. |
| P0335 | The engine speed signal sent by the ECM via direct line and the engine speed signal sent via CAN communication (1-trip detection logic*) do not match. | SMART fuse Engine control system Certification ECU (Smart key ECU assembly) Wire harness or connector | Allow the engine to idle for 10 seconds or more. |
- *: Only detected while a malfunction is present and the engine switch is on (IG).
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| When the signal sent via either the direct line or CAN communication is malfunctioning and indicates no vehicle speed, there is no effect on vehicle behavior. (A malfunction is detected after the engine switch is turned on (IG).) When the signal sent via either direct line or CAN communication is malfunctioning and indicates that the vehicle is moving, the engine cannot be started. However, the engine can be started after the engine switch has been turned off. | When the signal sent via either direct line or CAN communication is malfunctioning and indicates no vehicle speed, there is no effect on vehicle behavior. When the signal sent via either direct line or CAN communication is malfunctioning and indicates that the vehicle can be moving: If the following conditions are met, it can be determined that the malfunction is not in CAN communication but in the direct line (NE). When the engine switch is pressed, the system controls the engine based on the starter OFF permission flag (perfect injection signal judgment) via CAN communication, causing the engine to stop cranking. When the engine switch is pressed and held, the system controls the engine based on the engine speed signal via CAN communication, causing the engine to stop cranking. If the following conditions are met, it can be determined that the malfunction is not in the direct line (NE) but in CAN communication. When the engine switch is pressed, the system controls the engine based on the engine speed signal via direct line, causing the engine to stop cranking. When the engine switch is pressed and held, the system controls the engine based on the engine speed signal via direct line, causing the engine to stop cranking. If the following conditions are met, it can be determined that there is a malfunction in both CAN communication and the direct line (NE). When the engine switch is pressed, the engine stops cranking after 6 seconds. When the engine switch is pressed and held, the engine remains cranking for up to 30 seconds. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 70
These DTCs are stored when there is a CAN communication error between the certification ECU (smart key ECU assembly) and the ECM, main body ECU (multiplex network body ECU) or combination meter assembly.
HINT
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| U0100 | CAN communication error between the certification ECU (smart key ECU assembly) and ECM (1-trip detection*) | ECM | Turn the engine switch on (IG) and wait 10 seconds or more. |
| U0140 U0142 | CAN communication error between the certification ECU (smart key ECU assembly) and main body ECU (1-trip detection*) | Main body ECU (multiplex network body ECU) | Always |
| U0155 | CAN communication error between the certification ECU (smart key ECU assembly) and combination meter assembly (1-trip detection*) | Combination meter assembly | Turn the engine switch on (IG) and wait 10 seconds or more. |
- *: Only detected while a malfunction is present and the engine switch is on (IG).
| DTC Code | Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|---|
| U0100 | There is no effect on vehicle behavior. | If the following conditions are met, it can be determined that the malfunction is not in the direct line (NE) but in CAN communication. When the engine switch is pressed, the system controls the engine based on the engine speed signal via direct line, causing the engine to stop cranking. When the engine switch is pressed and held, the system controls the engine based on the engine speed signal via direct line, causing the engine to stop cranking. If the following conditions are met, it can be determined that there is a malfunction in both CAN communication and the direct line (NE). When the engine switch is pressed, the engine stops cranking after 6 seconds. When the engine switch is pressed and held, the engine remains cranking for up to 30 seconds. |
| U0140 U0142 | Doors cannot be locked or unlocked. The warning (wireless buzzer) does not sound. | |
| U0155 | The warning (meter buzzer) does not sound and the meter does not indicate a warning. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
HINT
| DTC | Data List Item | Active Test Item |
|---|---|---|
| U0100 U0140 U0142 U0155 |
RELATED DATA LIST AND ACTIVE TEST ITEMS
When the electrical key transmitter sub-assembly is in the cabin and the engine switch is pressed, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode. In addition, when the shift lever is in P or N and the brake pedal is depressed, the engine can be started by pressing the engine switch.
If any of the following operations are performed, the certification ECU (smart key ECU assembly) receives a signal, and changes the power source mode.
- With the electrical key transmitter sub-assembly in the cabin, the engine switch is pressed.
- When the battery of the electrical key transmitter sub-assembly is depleted, the brake pedal is depressed and the electrical key transmitter sub-assembly is held near the engine switch.
- When the smart access system with push-button start cancel function has been turned on the customization menu, the brake pedal is depressed and the electrical key transmitter sub-assembly is held near the engine switch.
HINT
- When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
- If the room oscillator does not recognize the electrical key transmitter sub-assembly, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly). Refer to «OPERATION HISTORY LIST [06/2012 - ]»(ref-598699-S24942402392014021400000) .
- If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether the malfunction was caused by wave interference.
| Parameter Name | Cause of Problem and Countermeasure |
|---|---|
| Operating Engine Switch / Key RF Signal Interference | When the engine switch was operated, the electrical key transmitter sub-assembly could not be confirmed due to wave interference. Therefore, the output frequency was switched to the other channel (changed from channel 1 to channel 2 or from channel 2 to channel 1). If the cause of the malfunction has not been stored but any devices that can cause wave interference in the cabin have been removed and the room oscillator successfully recognizes the electrical key transmitter sub-assembly, the possibility of wave interference is high. |
RADIO WAVE INTERFERENCE
Scheme 71
Scheme 72
If the engine switch is pressed with the electrical key transmitter sub-assembly in the cabin, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode.
HINT
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
If the engine switch is pressed with the electrical key transmitter sub-assembly in the cabin, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode.
HINT
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
Scheme 73
See also:
• REMOVAL [06/2012 - ]