Last Modified: 04-05-2023 |
6.11:8.1.0 |
Doc ID: RM100000000ZNFE |
Model Year Start: 2017 |
Model: Sienna |
Prod Date Range: [08/2016 -
] |
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM(for Start Function): B2286,P0335; Runnable Signal Malfunction; 2017 - 2020 MY Sienna [08/2016 - ] |
DTC
|
B2286
|
Runnable Signal Malfunction
|
DTC
|
P0335
|
Crankshaft Position Sensor Circuit Malfunction (NE Signal)
|
DESCRIPTION
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 and Fail-safe Function when Malfunction Detected
Vehicle Condition when Malfunction Detected
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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.
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When using the Techstream with the engine switch off, perform either of the following: 1) Turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and vehicle begins, or 2) connect the Techstream to the vehicle, select the vehicle type under manual mode, and then enter the following menus: Body Electrical / Smart Key / Trouble Codes.
-
The smart key system uses multiplex communication. First perform the inspections in "How to Proceed with Troubleshooting" to confirm that there are no communication malfunctions before proceeding with troubleshooting (See page
).
-
Inspect the fuses of circuits related to this system before performing the following inspection procedure.
-
After performing repairs, perform the operation that fulfills the DTC output confirmation operation, and then confirm that no DTCs are output again.
-
If P0335 is output together with P2286, perform inspections and repairs for P0335 first.
Related Data List and Active Test Items
DTC
|
Data List Item
|
Active Test Item
|
B2286
|
|
-
|
P0335
|
|
-
|
PROCEDURE
1.
|
READ VALUE USING TECHSTREAM (ENGINE CONDITION, ENGINE SPEED)
|
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Power Source Control or Starting Control / Data List.
(e) According to the display on the Techstream, read the Data List.
Power Source Control
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
Engine Condition
|
Condition of engine/Stop or Run
|
Run: Engine running
Stop: Engine stopped
|
-
|
Starting Control
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
Engine Speed
|
Engine speed/0 to 16383 r/min
|
Changes according to engine speed
|
-
|
OK:
ON (engine stopped) or OFF (engine running) appears on the screen according to the engine condition.
NG
|
|
|
2.
|
CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE
|
OK
|
|
|
3.
|
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
4.
|
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - ECM)
|
(a) Disconnect the A35 power management control ECU connector.
(b) Disconnect the A69 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A35-4 (NE) - A69-30 (NEO)
|
Always
|
Below 1 Ω
|
A35-4 (NE) or A69-30 (NEO) - Body ground
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
5.
|
INSPECT POWER MANAGEMENT CONTROL ECU
|
(a) Reconnect the power management control ECU connectors.
*a
|
Component with harness connected
(Power Management Control ECU)
|
-
|
-
|
(b) Check the engine speed input signal waveform at the terminal of the power management control ECU.
Standard Frequency:
Tester Connection
|
Condition
|
Specified Condition
|
A35-4 (NE) - Body ground
|
Engine stopped
|
No pulse generated
|
Engine running
|
Pulse generated
(1000 rpm: 200 Hz)
|
OK |
|
REPLACE POWER MANAGEMENT CONTROL ECU
(See page
)
|
|