DESCRIPTION
This DTC is stored when a malfunction in the IG1 circuit, IG2 circuit or IG hold circuit in the power management control ECU is detected.
HINT
When the cable is disconnected and reconnected to the negative (-) auxiliary 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 power management control ECU is malfunctioning. The IG hold circuit in the power management control ECU is malfunctioning. | AM2 fuse Power management control ECU Wire harness or connector | Turn the power switch on (IG). HINT: To turn the power switch on (IG), carry the electrical key transmitter sub-assembly and press the power switch twice with the shift lever in P and the brake pedal released. |
- *: Only detected while a malfunction is present and the power 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 power switch cannot be turned on (IG) (the hybrid control system cannot be started). | The power source mode cannot be changed to on (IG). |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 232
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 power management control ECU to the ACC relay.
HINT
When the cable is disconnected and reconnected to the negative (-) auxiliary 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 power management control ECU 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. | AM2 fuse ACC relay (Instrument panel junction block assembly) Power management control ECU Wire harness or connector | Wait 10 seconds after turning the power switch on (ACC) or on (IG), and then wait another 10 seconds after turning the power 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 power 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 power switch is on (ACC). HINT: The power switch can be turned on (IG) and the hybrid control system can be started. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 233
This DTC is stored when a malfunction is detected in the starter circuit inside the power management control ECU.
HINT
When the cable is disconnected and reconnected to the negative (-) auxiliary 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 |
|---|---|---|---|
| B2275 | Power management control ECU internal HV activation request output circuit malfunction or external circuit malfunction (1-trip detection logic*) | AM2 fuse Steering lock system Power management control ECU Wire harness or connector | Turn the power switch on (IG) and wait 10 seconds or more, then start the hybrid control system 3 times. |
- *: Only detected while a malfunction is present.
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| The power source mode changes to on (READY) even though the hybrid control system is not started. The power source mode does not change to on (READY) even though the hybrid control system is started. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 234
This DTC is stored when a malfunction in the water submersion detection circuit in the power management control ECU is detected.
HINT
When the cable is disconnected and reconnected to the negative (-) auxiliary 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 power management control ECU detects water submersion (1-trip detection logic*). | Submersion of power management control ECU in water Power management control ECU | Wait 300 seconds after connecting the cable to the negative (-) auxiliary battery terminal. |
- *: Only detected while a malfunction is present.
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| The power switch cannot be turned off and the hybrid control system 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 (-) auxiliary 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. | AM2 fuse Meter/gauge system Power management control ECU 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 | Vehicle speed signal malfunction detection : Excessive deceleration is detected (1-trip detection logic*) | AM2 fuse Meter/gauge system Power management control ECU Junction Connector Wire harness or connector | Drive the vehicle for 30 seconds or more at a vehicle speed of 50 km/h (31 mph) or more. |
- *: Only detected while a malfunction is present and the power switch is on (IG)
| DTC Code | 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 that the vehicle speed is 0 km/h (0 mph), 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 switch cannot be turned from on (IG) to off. | |
| B2283 | The power source mode is changed to off (the hybrid control system is stopped) by pressing the power switch while the vehicle is being driven. With the electrical key transmitter sub-assembly in the cabin, even if a hybrid control system start operation is performed, the hybrid control system does not start. | Steering lock operation is prohibited. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 235
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 (-) auxiliary 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. | AM2 fuse STOP fuse Brake control system Power management control ECU Wire harness or connector | Connect the cable to the negative (-) auxiliary 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 power 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 hybrid control system start operation is performed, the hybrid control system does not start (the multi-information display message (smart warning light) is not displayed). However, the hybrid control system can be started by turning the power switch on (ACC) and then pressing and holding it. If there is a malfunction when the direct line is on, the hybrid control system can be started by pressing the power switch with the brake pedal released. If there is a malfunction when the direct line is off, the hybrid control system cannot be started by pressing the power switch with the brake pedal depressed. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 236
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 (-) auxiliary 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. | AM2 fuse Steering lock ECU (steering lock actuator assembly) Power management control ECU Wire harness or connector | Disconnect the cable from the negative (-) auxiliary battery terminal, wait 30 seconds and then reconnect the cable to the negative (-) auxiliary battery terminal. Wait 40 seconds or more with the power switch off (with the steering wheel locked), then turn the power switch on (ACC) (with the steering unlocked) and wait 40 seconds or more. |
- *: Only detected while a malfunction is present and the power switch is on (IG)
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| The hybrid control system cannot be started. | The ECU does not send an hybrid control system start request. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 237
This DTC is stored when a malfunction is detected in the READY signal circuit inside the power management control ECU.
HINT
When the cable is disconnected and reconnected to the negative (-) auxiliary 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 | READY signal error inside the power management control ECU (1-trip detection logic*) | AM2 fuse Power management control ECU Wire harness or connector | Turn the power switch on (IG) and wait 20 seconds or more. |
- *: Only detected while a malfunction is present and the power switch is on (IG)
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| The power source mode does not change to on (READY). |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
These DTCs are stored when there is a CAN communication error between the power management control ECU and the certification ECU (smart key ECU assembly).
HINT
When the cable is disconnected and reconnected to the negative (-) auxiliary 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 power switch on (IG) and wait 10 seconds or more. |
| U0140 | CAN communication error between the power management control ECU and main body ECU (1-trip detection*) | Main body ECU (multiplex network body ECU) | Always |
| 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 power management control ECU or certification ECU (smart key ECU assembly) and combination meter assembly (1-trip detection*) | Combination meter assembly | Turn the power switch on (IG) and wait 10 seconds or more. |
| U0293 | CAN communication error between the certification ECU (smart key ECU assembly) and power management control ECU (1-trip detection*) | Power management control ECU | Turn the power switch on (IG) and wait 10 seconds or more. |
- *: Only detected while a malfunction is present and the power 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. | |
| U0140 | The warning (meter buzzer) does not sound and the meter does not indicate a warning. | |
| U0142 | Doors cannot be locked or unlocked. The warning (wireless buzzer) does not sound. The warning (meter buzzer) does not sound and the meter does not indicate a warning. | |
| U0155 | The warning (meter buzzer) does not sound and the meter does not indicate a warning. (When the smart key ECU stores the DTC.) There is no effect on vehicle behavior. (When the power management control ECU stores the DTC.) | |
| U0293 | The warning (meter buzzer) does not sound and the meter does not indicate a warning. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
This DTC is stored when the power management control ECU detects a CAN communication error inside the power management control ECU (power control section - HV control section).
HINT
When the cable is disconnected and reconnected to the negative (-) auxiliary 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 |
|---|---|---|---|
| U0293 | CAN communication error inside the power management control ECU (power control section - HV control section). (1-trip detection logic*) | AM2 fuse Power management control ECU Wire harness or connector | Turn the power switch on (IG) and wait 10 seconds or more. |
- *: Only detected while a malfunction is present.
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| There is no effect on vehicle behavior. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 238
If any of the following operations are performed, the power management control ECU receives a signal, and changes the power source mode.
- With the electrical key transmitter sub-assembly in the cabin, the power switch is pressed.
- When the auxiliary 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 power switch.
- When the smart key system cancel function has been canceled on the customization menu, the brake pedal is depressed and the electrical key transmitter sub-assembly is held near the power 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 key, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly). Refer to «OPERATION HISTORY LIST [12/2013 - ]»(ref-651398-S30150201452014081900000).
- If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether or not the malfunction was caused by wave interference.
| Problem Symptom | Data List Item |
|---|---|
| Operating Engine Switch / Key RF Signal Interference | When the power 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 key, the possibility of wave interference is high. |
RADIO WAVE INTERFERENCE
Scheme 239
If the power switch is pressed with the electrical key transmitter sub-assembly in the cabin, the power management control ECU receives a signal and changes the power source mode.
HINT
When the cable is disconnected and reconnected to the negative (-) auxiliary battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
Scheme 240
If the power switch is pressed with the electrical key transmitter sub-assembly in the cabin, the power management control ECU receives a signal and changes the power source mode.
HINT
When the cable is disconnected and reconnected to the negative (-) auxiliary battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
Scheme 241
When the electrical key transmitter sub-assembly is in the vehicle and the power switch is pressed, the power management control ECU receives a signal and changes the power source mode. In addition, when the shift lever is in P and the brake pedal is depressed, the hybrid control system can be started by pressing the power switch.
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) auxiliary battery terminal, the power source mode changes to on (IG).
- When the auxiliary battery cable is disconnected and reconnected, the power source returns to the mode it was in before the auxiliary battery cable was disconnected.
See also:
• REMOVAL [12/2013 - ]
• REPLACEMENT [12/2013 - ]