DTC B2286: Runnable Signal Malfunction; DTC P0335: Crankshaft Position Sensor Circuit Malfunction (NE Signal) (07/2015 -): Description

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.	AM2 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.	AM2 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 AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED

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 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.