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Smart Key System (For Start Function) (Diagnostic Codes & Symptom Tests): Overview Toyota Corolla XI

Door Locks & Anti-Theft Systems 8 illustrations ~874 words

DESCRIPTION

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.

DTC No.Detection ItemDTC Detection ConditionTrouble AreaNote
B2282Vehicle Speed Signal MalfunctionThe vehicle speed signal sent by the combination meter assembly via direct line and the vehicle speed signal sent via CAN communication do not match. (1-trip detection logic*)AM2 fuse Meter/gauge system Certification ECU (smart key ECU assembly) Wire harness or connectorDTC Output Confirmation Operation 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.
B2283Vehicle Speed Sensor MalfunctionEither 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 detectionAM2 fuse Meter/gauge system Certification ECU (smart key ECU assembly) Wire harness or connectorDTC Output Confirmation Operation Run the engine at an engine speed of 2000 RPM or more for 330 seconds.
  1. *: Only detected while a malfunction is present and the engine switch is on (IG).
DTC CodeVehicle Condition when Malfunction DetectedFail-safe Function when Malfunction Detected
B2282When 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 engine switch cannot be turned from on (IG) to off.
B2283The 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.Steering lock motor operation is prohibited.

VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED

DTC No.Data List ItemActive Test Item
B2282 B2283Power Source Control Vehicle Speed Signal Engine Condition Power Supply Condition Starting Control Engine Speed Combination Meter Vehicle Speed Meter

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Scheme 216

Scheme 216: WIRING DIAGRAM

This DTC is stored when the brake signal sent via direct line and the brake signal sent via CAN communication do not match.

DTC No.Detection ItemDTC Detection ConditionTrouble AreaNote
B2284Brake Signal MalfunctionThe brake signal sent via direct line and the brake signal sent via CAN communication do not match. (1-trip detection logic*)SFI system AM2 fuse STOP fuse Certification ECU (smart key ECU assembly) Wire harness or connector Stop light switch assemblyDTC Output Confirmation Operation 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.
  1. *: Only detected while a malfunction is present and the engine switch is on (IG).
Vehicle Condition when Malfunction DetectedFail-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). 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

DTC No.Data List ItemActive Test Item
B2284Power Source Control Stop Light Switch Engine and ECT ST1

RELATED DATA LIST AND ACTIVE TEST ITEMS

Scheme 217

Scheme 217: WIRING DIAGRAM

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.

DTC No.Detection ItemDTC Detection ConditionTrouble AreaNote
B2285Steering Lock Position Signal Circuit MalfunctionThe 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. (1-trip detection logic*)AM2 fuse Steering lock ECU (steering lock actuator assembly) Certification ECU (smart key ECU assembly) Wire harness or connectorDTC Output Confirmation Operation 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 locked), then turn the engine switch on (ACC) (with the steering unlocked) and wait 40 seconds or more.
  1. *: Only detected while a malfunction is present and the engine switch is on (IG).
Vehicle Condition when Malfunction DetectedFail-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

DTC No.Data List ItemActive Test Item
B2285Power Source Control Steering Unlock Switch Smart Key Power Supply Short Motor Driver Short Lock Bar Stuck Error

RELATED DATA LIST AND ACTIVE TEST ITEMS

Scheme 218

Scheme 218: WIRING DIAGRAM

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.

DTC No.Detection ItemDTC Detection ConditionTrouble AreaNote
U0100Lost Communication with ECM / PCMCAN communication error between the certification ECU (smart key ECU assembly) and ECM (1-trip detection logic*)ECMDTC Output Confirmation Operation Turn the engine switch on (IG) and wait 10 seconds or more.
U0140Lost Communication with Main Body ECUCAN communication error between the certification ECU (smart key ECU assembly) and main body ECU (1-trip detection logic*)Main body ECU (multiplex network body ECU)DTC Output Confirmation Operation Always
U0142Lost Communication with Main Body ECUCAN communication error between the certification ECU (smart key ECU assembly) and main body ECU (1-trip detection logic*)Main body ECU (multiplex network body ECU)DTC Output Confirmation Operation Always
U0155Lost Communication with Combination MeterCAN communication error between the certification ECU (smart key ECU assembly) and combination meter assembly (1-trip detection logic*)Combination meter assemblyDTC Output Confirmation Operation Turn the engine switch on (IG) and wait 10 seconds or more.
  1. *: Only detected while a malfunction is present and the engine switch is on (IG).
DTC CodeVehicle Condition when Malfunction DetectedFail-safe Function when Malfunction Detected
U0100There is no effect on vehicle behavior.If the following conditions are met, it is 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 is 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 U0142Doors cannot be locked or unlocked. The warning (wireless buzzer) does not sound.
U0155The warning (meter buzzer) does not sound and the meter does not indicate a warning.

VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED

DTC No.Data List and Active TestActive Test Item
U0100 U0140 U0142 U0155

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This DTC is stored when a malfunction in the IG circuit, IG2 circuit or IG hold circuit in the certification ECU (smart key ECU assembly) is detected.

DTC No.Detection ItemDTC Detection ConditionTrouble AreaNote
B2271Ignition Hold Monitor MalfunctionWhen either of the following conditions is met (1-trip detection logic*1): The IG 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.AM2 fuse Certification ECU (smart key ECU assembly) Wire harness or connectorDTC Output Confirmation Turn the engine switch on (IG). HINT: To turn the engine switch on (IG), carry an electrical key transmitter sub-assembly and press the engine switch twice with the shift lever in P and the brake pedal*2 or clutch pedal*3 released.
  1. *1: Only detected while a malfunction is present and the engine switch is on (IG).
  2. *2: except Manual Transaxle
  3. *3: for Manual Transaxle

HINT

  1. The IG and IG2 circuits activate the IG and IG2 relays.
  2. After the IG 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 DetectedFail-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

DTC No.Data List ItemActive Test Item
B2271Power Source Control IG Relay Monitor (Inside) IG2 Relay Monitor (Inside) Latch Circuit Starting Control Ignition

RELATED DATA LIST AND ACTIVE TEST ITEMS

Scheme 219

Scheme 219: WIRING DIAGRAM

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.

DTC No.Detection ItemDTC Detection ConditionTrouble AreaNote
B2286Runnable Signal MalfunctionThe engine speed signal sent by the ECM via direct line and the engine speed signal sent via CAN communication do not match. (1-trip detection logic*)AM2 fuse SFI system Certification ECU (smart key ECU assembly) Wire harness or connectorDTC Output Confirmation Operation 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.
P0335Crankshaft Position Sensor Circuit Malfunction (NE Signal)The engine speed signal sent by the ECM via direct line and the engine speed signal sent via CAN communication do not match. (1-trip detection logic*)AM2 fuse SFI system Certification ECU (smart key ECU assembly) Wire harness or connectorDTC Output Confirmation Operation Allow the engine to idle for 10 seconds or more.
  1. *: Only detected while a malfunction is present and the engine switch is on (IG).
Vehicle Condition when Malfunction DetectedFail-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 (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 is 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 is 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

DTC No.Data List ItemActive Test Item
B2286 P0335Power Source Control Engine Condition Starting Control Engine Speed

RELATED DATA LIST AND ACTIVE TEST ITEMS

Scheme 220

Scheme 220: WIRING DIAGRAM

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.

DTC No.Detection ItemDTC Detection ConditionTrouble AreaNote
B2274ACC Monitor MalfunctionMalfunction in the ACC relay circuit in the certification ECU (smart key ECU assembly) or in 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 fuse ACC relay (Driver side junction block assembly) Certification ECU (smart key ECU assembly) Wire harness or connectorDTC Output Confirmation Operation 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 an electrical key transmitter sub-assembly and press the engine switch with the shift lever in P and the brake pedal*2 or clutch pedal*3 released.
  1. *1: Only detected while a malfunction is present.
  2. *2: except Manual Transaxle
  3. *3: for Manual Transaxle
Vehicle Condition when Malfunction DetectedFail-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

DTC No.Data List ItemActive Test Item
B2274Power Source Control ACC Relay Monitor Starting Control Ignition

RELATED DATA LIST AND ACTIVE TEST ITEMS

Scheme 221

Scheme 221: WIRING DIAGRAM

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.Detection ItemDTC Detection ConditionTrouble AreaNote
B2277Detecting Vehicle SubmersionThe 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)DTC Output Confirmation Operation Wait 300 seconds after connecting the cable to the negative (-) battery terminal.
  1. *: Only detected while a malfunction is present.
Vehicle Condition when Malfunction DetectedFail-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 No.Data List ItemActive Test Item
B2277

RELATED DATA LIST AND ACTIVE TEST ITEMS

When the key 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*1 and the brake pedal*1 or clutch pedal*2 is depressed, the engine can be started by pressing the engine switch.

  1. *1: except Manual Transaxle
  2. *2: for Manual Transaxle
Problem SymptomData List ItemActive Test Item
Engine does not startPower Source Control Stop Light Switch Steering Unlock Switch Power Supply Condition IG Relay Monitor (Inside) IG2 Relay Monitor(Inside) IG Relay Monitor(Outside) IG2 Relay Monitor(Outside) Latch Circuit Shift P Signal Neutral SW/ Clutch SW Starter Request Signal Smart Key S Code Check L Code Check Engine Start Request Immobilizer Starting Control Ignition Starter SW Shift Position P or N

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HINT

If the brake pedal is repeatedly depressed while the engine is stopped, the brake booster pressure is released and the force required to depress the brake pedal to illuminate the stop lights increases.

If any of the following operations are performed, the certification ECU (smart key ECU assembly) receives a signal, and changes the power source mode.

  1. With the electrical key transmitter sub-assembly in the cabin, the engine switch is pressed.
  2. When the battery of the electrical key transmitter sub-assembly is depleted, the brake pedal*1 or clutch pedal*2 is depressed and the electrical key transmitter sub-assembly is held near the engine switch.
  3. When the smart key cancel function has been canceled on the customization menu, the brake pedal*1 or clutch pedal*2 is depressed and the electrical key transmitter sub-assembly is held near the engine switch.
  1. *1: except Manual Transaxle
  2. *2: for Manual Transaxle
Problem SymptomData List ItemActive Test Item
Power source mode does not change to on (IG) or on (ACC)Power Source Control Start Switch Start Switch2 Power Supply Condition IG Relay Monitor(Inside) IG2 Relay Monitor(Inside) IG Relay Monitor(Outside) IG2 Relay Monitor(Outside) Latch Circuit ACC Relay Monitor

RELATED DATA LIST AND ACTIVE TEST ITEMS

Scheme 222

Scheme 222: WIRING DIAGRAM

Scheme 223

Scheme 223

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.

Problem SymptomData List ItemActive Test Item
Power source mode does not change to on (IG) but does change to on (ACC)Power Source Control Power Supply Condition IG Relay Monitor (Inside) IG2 Relay Monitor (Inside) IG Relay Monitor (Outside) IG2 Relay Monitor (Outside) IG Circuit IG2 Circuit

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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.

Problem SymptomData List ItemActive Test Item
Power source mode does not change to on (ACC) but does change to on (IG)Power Source Control Power Supply Condition ACC Relay Monitor

RELATED DATA LIST AND ACTIVE TEST ITEMS