Scheme 120
- CHECK POWER SOURCE MODE CHANGE FUNCTION Check the function of the engine switch. Check that power source mode changes in accordance with the conditions of the shift position and brake pedal. Brake Pedal Shift Lever Power Source Mode Pattern Depressed P or N When the engine switch is pushed once. off --> engine start Not depressed P Each time the engine switch is pushed. off --> on (ACC) --> on (IG) --> off Except P Each time the engine switch is pushed. off --> on (ACC) --> on (IG) --> on (ACC) - P When the engine switch is pushed in the on (IG) condition (engine running). on (IG) --> off - Except P When the engine switch is pushed in the on (IG) condition (engine running). on (IG) --> on (ACC) Check that the power source mode changes without pressing the engine switch. With power source mode on (ACC) and the shift lever in P, wait for at least 1 hour. Check that the power source mode changes from on (ACC) to off automatically.
- CHECK INDICATOR CONDITION TEXT IN ILLUSTRATION *1 Indicator Light Check the indicator light on the engine switch. Check that the engine switch indicator turns on and changes color according to the table below. Power Source Mode/Condition Indicator Light Condition Brake Pedal Released Brake Pedal Depressed, Shift Lever in P or N off off Turns on (Green) on (ACC, IG) Turns on (Amber) Turns on (Green) Engine running off off Steering lock not unlocked Flashes (Green) for 15 sec. Flashes (Green) for 15 sec. System malfunction Flashes (Amber) for 15 sec. Flashes (Amber) for 15 sec.
DESCRIPTION
This DTC is stored when a malfunction in the IG1 drive circuit, IG2 drive circuit or IG hold circuit in the power management control ECU is detected.
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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 Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2271 | Either condition is met (1-trip detection logic*): The IG1 or IG2 drive circuit in the power management control ECU is malfunctioning. The IG hold circuit in the power management control ECU is malfunctioning. | AM2 No. 2 fuse Power management control ECU 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 and the brake pedal released. |
- *: Only output while a malfunction is present and the engine switch is on (IG)
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 power management control ECU 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
Scheme 121
This DTC is stored when a malfunction in the ACC output circuit between the ACC output terminal of the power management control ECU and the ACC relay is detected.
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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 Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2274 | Malfunction in the ACC relay activation circuit in the power management control ECU or 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 No. 2 fuse Instrument panel junction block assembly (ACC relay) Power management control ECU 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 and the brake pedal released. |
- *: 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 |
|---|---|
| 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 when the relay is off, the ACC relay does not turn on even though the power source mode is on (ACC). HINT: The power source can change to on (IG) and the engine can be started. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 122
This DTC is stored when a malfunction in the water submersion detection circuit in the power management control ECU is detected.
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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 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 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 B2282 is stored when a mismatch between the vehicle speed signal from the direct line sent by the combination meter 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 power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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 Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2282 | Mismatch between the vehicle speed signal from the direct line sent by the combination meter and the vehicle speed signal sent via CAN communication (1-trip detection logic*). | CAN communication system Power management control ECU Meter/gauge system 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*): Vehicle speed signal malfunction detection 1: Large decrease in speed is detected. Vehicle speed signal malfunction detection 2: Engine speed-linked detection. |
- *: 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 |
|---|---|---|
| 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 key 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
Scheme 123
This DTC is stored when a mismatch between the brake signal from the direct line and the brake signal sent via CAN communication is detected.
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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 Code | 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 ECU via CAN communication are inconsistent (1-trip detection logic*). | STOP fuse AM2 No. 2 fuse Stop light switch assembly Engine control system Power management control ECU 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. |
- *: 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 key is inside the vehicle, the engine does not start even though an engine start operation is performed (the engine switch indicator 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
Scheme 124
This DTC is stored when a mismatch between the steering lock position signal from the direct line sent by the steering lock ECU and the steering lock position signal sent via LIN communication is detected.
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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 Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2285 | Mismatch between the steering lock position signal from the direct line sent by the steering lock ECU and the steering lock position signal sent via LIN communication (1-trip detection logic*). | AM2 No. 2 fuse Steering lock actuator assembly (steering lock ECU) Power management control ECU LIN communication system 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 lock locked), and then turn the engine switch on (ACC) (steering lock 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
Scheme 125
These DTCs are stored when a mismatch between the engine speed signal from the direct line sent by the ECM and the engine speed signal sent via CAN communication is detected.
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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 Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2286 | Mismatch between the engine speed signal from the direct line sent by the ECM and the engine speed signal sent via CAN communication (1-trip detection logic). | AM2 No. 2 fuse Engine control system Power management control ECU 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. |
| P0335 | Mismatch between the engine speed signal from the direct line sent by the ECM and the engine speed signal sent via CAN communication (1-trip detection logic). | AM2 No. 2 fuse Engine control system Power management control ECU Harness or connector | Wait for 10 seconds or more with the engine idling. |
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| When a malfunction occurs in the direct line or CAN communication signal while a trip is not being performed, there is no effect on vehicle behavior. When a malfunction occurs in the direct line or CAN communication signal while a trip is being performed, the engine cannot be started when the power source mode is on (IG). However, when the power source mode is not on (IG), the engine can be started. | When a malfunction occurs in the direct line or CAN communication signal while a trip is being performed, there is no fail-safe function. When a malfunction occurs in the direct line or CAN communication signal while a trip is not being performed, the fail-safe function behaves as follows: CAN communication is normal and the engine speed signal from the direct line is abnormal: If the engine switch is pressed briefly, cranking is stopped based on the starter OFF permission flag received via CAN communication. If the engine switch is pressed and held, cranking stops according to the engine speed signal sent via CAN communication. CAN communication is abnormal and the engine speed signal from the direct line is normal: If the engine switch is pressed briefly, cranking stops according to the engine speed signal from the direct line. If the engine switch is pressed and held, cranking stops according to the engine speed signal from the direct line. Both CAN communication and the engine speed signal from the direct line are abnormal: If the engine switch is pressed briefly, cranking stops after 6 seconds elapse. If the engine switch is pressed and held, cranking is maintained for a maximum of 30 seconds. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
Scheme 126
This DTC is stored when a malfunction in the CAN communication between the power management control ECU and ECM is detected.
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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 Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| U0100 | CAN communication malfunction between the power management control ECU and ECM (1-trip detection logic*). | CAN communication system Power management control ECU | Wait 4 seconds or more after turning the engine switch on (IG). |
- *: 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 |
|---|---|
| No effect on vehicle behavior. | CAN communication is normal and the engine speed signal from the direct line is abnormal: If the engine switch is pressed briefly, cranking stops when the starter OFF permission flag is received via CAN communication. If the engine switch is pressed and held, cranking stops according to the engine speed signal sent via CAN communication. CAN communication is abnormal and the engine speed signal from the direct line is normal: If the engine switch is pressed briefly, cranking stops according to the engine speed signal from the direct line. If the engine switch is pressed and held, cranking stops according to the engine speed signal from the direct line. Both CAN communication and the engine speed signal from the direct line are abnormal: If the engine switch is pressed briefly, cranking stops after 6 seconds elapse. If the engine switch is pressed and held, cranking is maintained for a maximum of 30 seconds. |
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
When the key is in the vehicle and the engine 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 or N and the brake pedal is depressed, the engine can be started by pressing the engine switch.
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.
When the key is in the vehicle and the engine switch is pressed, the power management control ECU receives a signal and changes the power source mode.
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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 127
When the engine switch is pushed with the key in the cabin, the power management control ECU receives signals to switch the power source mode.
Use this troubleshooting procedure when the power source mode does not change to on (IG) but does change to on (ACC).
HINT
- When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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 key is in the vehicle and the engine switch is pressed, the power management control ECU 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 power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).
- 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.
See also:
• REMOVAL