DTC B2286: Runnable Signal Malfunction; DTC P0335: Crankshaft Position Sensor Circuit Malfunction (NE Signal) [09/2015 - ]: 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.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B2286	Runnable Signal Malfunction	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 connector	DTC 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.
P0335	Crankshaft 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 connector	DTC Output Confirmation Operation: 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 a malfunction occurs and the vehicle speed signal sent via either direct line or CAN communication indicates no vehicle speed, there is no effect on vehicle behavior. (A malfunction is detected after the engine switch is turned on (IG).) When a malfunction occurs and the vehicle speed signal sent via either direct line or CAN communication 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 a malfunction occurs and the vehicle speed signal sent via either direct line or CAN communication 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 can be determined that the malfunction is not in the CAN communication system 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 the CAN communication system. 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 the CAN communication system 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 cranks for up to 30 seconds.

Vehicle Condition when Malfunction Detected

Fail-safe Function when Malfunction Detected

When a malfunction occurs and the vehicle speed signal sent via either direct line or CAN communication indicates no vehicle speed, there is no effect on vehicle behavior. (A malfunction is detected after the engine switch is turned on (IG).)
When a malfunction occurs and the vehicle speed signal sent via either direct line or CAN communication 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 a malfunction occurs and the vehicle speed signal sent via either direct line or CAN communication 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 can be determined that the malfunction is not in the CAN communication system 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 the CAN communication system.
- 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 the CAN communication system 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 cranks for up to 30 seconds.

RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC No.	Data List and Active Test
B2286 P0335	Power Source Control Engine Condition Starting Control Engine Speed

DTC No.

Data List and Active Test

B2286
P0335

Power Source Control

Engine Condition

Starting Control

Engine Speed