DESCRIPTION
This DTC is stored when a malfunction in the IG1 drive circuit, IG2 drive circuit or IG hold circuit in the certification ECU (smart key ECU assembly) is detected.
HINT
When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
| DTC No. | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2271 | Either condition is met (1-trip detection logic*1): The IG1 or IG2 drive 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. | AM2 NO. 2 fuse Certification ECU (smart key ECU assembly) Wire harness or connector | Turn the engine switch on (IG). HINT: To turn the engine switch on (IG), carry the key and press the engine switch twice with the shift lever in P or N*2 and the brake pedal*2 or clutch pedal*3 released. |
- *1: Only output while a malfunction is present and the engine switch is on (IG)
- *2: for Automatic Transmission
- *3: for Manual Transmission
HINT
- The IG1 and IG2 drive circuits activate the IG1 and IG2 relays.
- After the IG1 and IG2 drive circuits turn on, even if the certification ECU (smart key ECU assembly) operates incorrectly, the IG hold circuit maintains the engine switch on (IG) state.
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| The power source mode is not allowed to change to 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
| DTC No. | Data List Item | Active Test Item |
|---|---|---|
| B2271 | Power Source Control IG1 Relay Monitor (Inside) IG2 Relay Monitor (Inside) Latch Circuit Engine Ignition Status |
RELATED DATA LIST AND ACTIVE TEST ITEMS
Scheme 120
This DTC is stored when a malfunction in the ACC output circuit between the ACC output terminal of the certification ECU (smart key ECU assembly) and the ACC relay is detected.
HINT
When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
| DTC No. | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2274 | Malfunction in the ACC relay activation circuit in the certification ECU (smart key ECU assembly) or the external circuit (1-trip detection logic*1). HINT: When the voltage at terminal ACCD is not at the standard, the system is determined to be malfunctioning. | AM2 No. 2 fuse Instrument panel junction block assembly (ACC relay) 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. HINT: To turn the engine switch on (ACC), carry the key and press the engine switch with the shift lever in P or N*2 and the brake pedal*2 or clutch pedal*3 released. |
- *1: Only output while a malfunction is present and the engine switch is on (IG)
- *2: for Automatic Transmission
- *3: for Manual Transmission
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| If there is a malfunction when the relay is stuck on, the ACC relay does not turn off even though all the power 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. |
| DTC No. | Data List Item | Active Test Item |
|---|---|---|
| B2274 | Power Source Control ACC Relay Monitor Engine Ignition Status |
RELATED DATA LIST AND ACTIVE TEST ITEMS
Scheme 121
This DTC is stored when a circuit malfunction is detected in the engine start permission signal output circuit inside the certification ECU (smart key ECU assembly), or when an abnormal external engine start permission signal is detected.
HINT
When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
| DTC No. | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2275 | Circuit malfunction detected in the engine start permission output circuit inside the certification ECU (smart key ECU assembly) (1-trip detection logic*). External engine start permission signal malfunction (1-trip detection logic*). | Certification ECU (smart key ECU assembly) SFI system Wire harness or connector | Engine start operation is performed. |
- *: Only output 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. |
| DTC No. | Data List Item | Active Test Item |
|---|---|---|
| B2275 |
RELATED DATA LIST AND ACTIVE TEST ITEMS
Scheme 122
This DTC is stored when an input malfunction occurs in the ACC relay cut input signal circuit inside the certification ECU (smart key ECU assembly).
HINT
When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
| DTC No. | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2276 | When an input malfunction occurs in the ACC relay cut input signal circuit inside the certification ECU (smart key ECU assembly) (1-trip detection logic*) | Certification ECU (smart key ECU assembly) SFI system Wire harness or connector | Engine start operation is performed. |
- *: Only output while a malfunction is present and the engine switch is on (IG)
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| ACC is not turned off during cranking. The start assembly turns slowly. |
| DTC No. | Data List Item | Active Test Item |
|---|---|---|
| B2276 |
RELATED DATA LIST AND ACTIVE TEST ITEMS
Scheme 123
This DTC is stored when a malfunction in the water submersion detection circuit in the certification ECU (smart key ECU assembly) is detected.
| DTC No. | 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 10 seconds after connecting the battery cable. |
*: Only output 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 turned off and the engine cannot be started. | The power source mode changes to on (IG) and starter relay activation is prohibited. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
| DTC No. | Data List Item | Active Test Item |
|---|---|---|
| B2277 |
RELATED DATA LIST AND ACTIVE TEST ITEMS
DTC B2282 is stored when a mismatch between the vehicle speed signal from the direct line sent by the brake actuator assembly (skid control ECU) and the vehicle speed signal sent via CAN communication is detected.
DTC B2283 is stored when a malfunction in the vehicle speed sensor is detected.
HINT
When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
| DTC No. | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2282 | Mismatch between the vehicle speed signal from the direct line sent by the brake actuator assembly (skid control ECU) and the vehicle speed signal sent via CAN communication (1-trip detection logic*1). | AM2 NO. 2 fuse Vehicle stability control system Certification ECU (smart key ECU assembly) 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 that is less than 5 km/h (3 mph) for 20 seconds. |
| B2283 | Either condition is met (vehicle speed sensor malfunction is detected) (1-trip detection logic*1): Vehicle speed signal malfunction detection 1: Large decrease in speed is detected. Vehicle speed signal malfunction detection 2: Malfunction detected using engine speed-linked detection. | AM2 No. 2 fuse Vehicle stability control system Certification ECU (smart key ECU assembly) Wire harness or connector | Run the engine at an engine speed of 2000 RPM or more for 330 seconds. |
- *1: Only output while a malfunction is present and the engine switch is on (IG)
| DTC No. | Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|---|
| B2282 | When the signal from the direct line or CAN communication is malfunctioning and indicates no vehicle speed, there is no effect on vehicle behavior. When the signal from the direct line or CAN communication is malfunctioning and indicates that the vehicle is moving, the power source mode cannot be turned from on (IG) to off. | |
| B2283 | If the engine switch is pressed while the vehicle is being driven, the engine switch turns off (the engine stops). When the electrical key transmitter sub-assembly is inside the vehicle, the engine does not start even though an engine start operation is performed. | Steering lock motor operation is prohibited. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
| DTC No. | Data List Item | Active Test Item |
|---|---|---|
| B2282 B2283 | Power Source Control Vehicle Speed Signal Engine Condition Power Supply Condition Engine Engine Speed ABS/VSC/TRC Vehicle Speed |
RELATED DATA LIST AND ACTIVE TEST ITEMS
Scheme 124
The certification ECU (smart key ECU assembly) receives brake signal information from 2 sources. It receives a signal from the stop light switch assembly via a direct line, and a signal from the main body ECU (network gateway ECU) via CAN. If the information from these 2 sources is inconsistent, this DTC will be stored.
HINT
When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
| DTC No. | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2284 | The brake signal information from the direct line and the brake signal information from the main body ECU (network gateway ECU) via CAN communication are inconsistent (1-trip detection logic*). | AM2 NO. 2 fuse STOP fuse Certification ECU (smart key ECU assembly) Main body ECU (network gateway ECU) Wire harness or connector | Connect the cable to the negative (-) battery terminal, turn the brakes off for 20 seconds or more and then turn them on for 20 seconds or more. Then depress the brake pedal for 20 seconds or more. |
*: Only output 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 electrical key transmitter sub-assembly is inside the vehicle, the engine does not start even though an engine start operation is performed (the entry key indicator in the combination meter assembly does not illuminate in green). However, if the engine switch is pressed and held for a certain period of time after the power source mode is changed to on (ACC), the engine can be started. When a direct line ON malfunction is present, the engine can be started by pressing the engine switch even if the brakes are off. When a direct line OFF malfunction is present, the engine cannot be started by pressing the engine switch even if the brakes are on. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
| DTC No. | Data List Item | Active Test Item |
|---|---|---|
| B2284 | Power Source Control Stop Light Switch1 Main Body Stop Light SW |
RELATED DATA LIST AND ACTIVE TEST ITEMS
Scheme 125
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 battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
| DTC No. | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2285 | The steering lock position signal sent by the steering lock ECU via direct line and the steering lock position signal sent via LIN communication (1-trip detection logic*) do not match. | AM2 NO. 2 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 reconnect the cable to the negative (-) battery terminal. Wait another 40 seconds or more with the engine switch off (steering locked), and then turn the engine switch on (ACC) (steering unlocked) and wait 40 seconds or more. |
*: Only output 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. | An engine start command is not output. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
| DTC No. | Data List Item | Active Test Item |
|---|---|---|
| B2285 | Power Source Control Steering Unlock Switch Smart Key Power Supply Short Lock Bar Stuck Error Motor Driver Short |
RELATED DATA LIST AND ACTIVE TEST ITEMS
Scheme 126
These DTC is 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 battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
| DTC No. | 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. | AM2 NO. 2 fuse Certification ECU (smart key ECU assembly) SFI system 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, and then start the engine. Make sure that the engine speed is 1000 RPM or more for 20 seconds or more after starting the engine. |
*: Only output 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 is moving: If the following conditions are met, it is determined that the malfunction is not in CAN communication but in the direct line (TACH). 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 is determined that the malfunction is not in the direct line (TACH) 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 is determined that there is a malfunction in both CAN communication and the direct line (TACH). 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
| DTC No. | Data List Item | Active Test Item |
|---|---|---|
| B2286 | Power Source Control Engine Condition Engine Engine Speed |
RELATED DATA LIST AND ACTIVE TEST ITEMS
Scheme 127
These DTCs are stored when there is a CAN communication error between the certification ECU (smart key ECU assembly) and the ECM, TCM, main body ECU (network gateway ECU), combination meter assembly or brake actuator assembly (skid control ECU).
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 No. | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| U0073 | CAN communication system malfunction (1-trip detection logic*). | CAN communication system | Turn the engine switch on (IG) and wait 10 seconds or more. |
| U0100 | CAN communication malfunction between the certification ECU (smart key ECU assembly) and ECM (1-trip detection logic*). | ECM | Turn the engine switch on (IG) and wait 10 seconds or more. |
| U0101 | CAN communication malfunction between the certification ECU (smart key ECU assembly) and TCM (1-trip detection logic*). | TCM | Turn the engine switch on (IG) and wait 10 seconds or more. |
| U0122 | CAN communication malfunction between the certification ECU (smart key ECU assembly) and brake actuator assembly (skid control ECU) (1-trip detection logic*). | Brake actuator assembly (skid control ECU) | Turn the engine switch on (IG) and wait 10 seconds or more. |
| U0140 | CAN communication malfunction between the certification ECU (smart key ECU assembly) and main body ECU (network gateway ECU) (1-trip detection logic*). | Main body ECU (network gateway ECU) | Turn the engine switch on (IG) and wait 10 seconds or more. |
| U0155 | CAN communication malfunction between the certification ECU (smart key ECU assembly) and combination meter assembly (1-trip detection logic*). | Combination meter assembly | Turn the engine switch on (IG) and wait 10 seconds or more. |
| U0401 | CAN communication malfunction between the certification ECU (smart key ECU assembly) and ECM (1-trip detection logic*). | ECM | Turn the engine switch on (IG) and wait 10 seconds or more. |
| U0422 | CAN communication malfunction between the certification ECU (smart key ECU assembly) and main body ECU (network gateway ECU) (1-trip detection logic*). | Main body ECU (network gateway ECU) | Turn the engine switch on (IG) and wait 10 seconds or more. |
*: Only output 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 |
|---|---|---|
| U0073 | There is no effect on vehicle behavior. | |
| U0100 | There is no effect on vehicle behavior. | If the following conditions are met, it is determined that the malfunction is not in the direct line (TACH) 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 is determined that there is a malfunction in both CAN communication and the direct line (TACH). 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. |
| U0101 | There is no effect on vehicle behavior. | |
| U0122 | There is no effect on vehicle behavior. | |
| U0140 | 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. | |
| U0401 | There is no effect on vehicle behavior. | |
| U0422 | Doors cannot be locked or unlocked. The warning (wireless buzzer) does not sound. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
| DTC | Data List Item | Active Test Item |
|---|---|---|
| U0073 U0100 U0101 U0122 U0140 U0155 U0401 U0422 |
RELATED DATA LIST AND ACTIVE TEST ITEMS
When the electrical key transmitter sub-assembly is in the vehicle 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*1 and the brake pedal*1 or clutch pedal*2 is depressed, the engine can be started by pressing the engine switch.
- *1: for Automatic Transmission
- *2: for Manual Transmission
HINT
- The engine can be started up with the shift lever in N only when the steering lock is unlocked*.
- If the engine switch is pressed when the power source mode is on (IG) and the shift lever is in a position other than P, the power source mode changes to on (ACC). If the shift lever is then moved to P and the engine switch is pressed while stepping on the brake pedal, the power source mode changes to off*.
- When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
- *: for Automatic Transmission
| Problem Symptom | Data List Item | Active Test Item |
|---|---|---|
| Engine does not start | Power Source Control Shift P Signal Steering Unlock Switch Stop Light Switch1 Neutral SW/ Clutch SW Latch Circuit IG1 Relay Monitor (Outside) IG1 Relay Monitor (Inside) IG2 Relay Monitor (Outside) IG2 Relay Monitor (Inside) Starter Request Signal Power Supply Condition Smart Key Immobiliser Engine Start Request S Code Check L Code Check Engine Shift SW Status (P Range) Shift SW Status (N Range) Ignition Status |
RELATED DATA LIST AND ACTIVE TEST ITEMS
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 transmitter battery in the electrical key transmitter sub-assembly is depleted, touch the electrical key transmitter sub-assembly to the surface of the engine switch while depressing the brake pedal*1 or clutch pedal*2.
- When the entry cancel function is set by customize operation, touch the electrical key transmitter sub-assembly to the surface of the engine switch while depressing the brake pedal*1 or clutch pedal*2. *1: for Automatic Transmission *2: for Manual Transmission
HINT
When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
| Problem Symptom | Data List Item | Active Test Item |
|---|---|---|
| Power source mode does not change to on (IG) or on (ACC) | Power Source Control Start Switch1 Start Switch2 Latch Circuit IG1 Relay Monitor (Outside) IG1 Relay Monitor (Inside) IG2 Relay Monitor (Outside) IG2 Relay Monitor (Inside) ACC Relay Monitor Power Supply Condition Engine Ignition Status |
RELATED DATA LIST AND ACTIVE TEST ITEMS
Scheme 128
If the engine switch is pressed with the electrical key transmitter sub-assembly is in the cabin, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode.
HINT
When the battery cable is disconnected and reconnected, the power source mode returns to the mode it was in before the battery cable was disconnected.
When the electrical key transmitter sub-assembly is in the vehicle and the engine switch is pressed, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode. Use this troubleshooting procedure when the power source mode does not change to on (ACC) but does change to on (IG).
HINT
When the battery cable is disconnected and reconnected, the power source mode returns to the mode it was in before the battery cable was disconnected.
Scheme 129
See also:
• REMOVAL [07/2013 - ]
• REPLACEMENT [12/2013 - ]