|
Last Modified: 04-05-2023 |
6.11:8.1.0 |
Doc ID: RM100000000VJJL |
|
Model Year Start: 2016 |
Model: Sienna |
Prod Date Range: [12/2015 - 08/2016] |
|
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM(for Start Function): Engine does not Start; 2016 MY Sienna [12/2015 - 08/2016] |
DESCRIPTION
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.
WIRING DIAGRAM
Refer to "System Diagram" (See page
![2016 MY Sienna [12/2015 - 08/2016]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM(for Start Function): SYSTEM DIAGRAM](/t3Portal/stylegraphics/info.gif)
)
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(
).
-
If the smart key system is disabled through the customize function, enable the system before performing troubleshooting (See page
).
-
Inspect the fuses of circuits related to this system before performing the following inspection procedure.
-
When replacing the steering lock actuator assembly (steering lock ECU), certification ECU (smart key ECU assembly), registration must be performed (See page
).
-
If the steering lock actuator assembly (steering lock ECU) is replaced, be sure to confirm that the steering lock is unlocked by turning the steering wheel to the left and right before starting the engine. If the steering lock is locked for any reason, open and close a door with the engine switch off, and then unlock the steering lock by pressing the engine switch. This prevents the engine from starting while the steering lock is locked.
-
After completing repairs, confirm that the problem does not occur.
Related Data List and Active Test Items
|
Problem Symptom
|
Data List Item
|
Active Test Item
|
|
Engine does not start
|
Power Source Control
-
Power Supply Open
-
Starter SW
-
Stop Light Switch1
-
Steering Unlock Switch
-
Power Supply Condition
-
IG1 Relay Monitor(Inside)
-
IG2 Relay Monitor(Inside)
-
IG1 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
-
Immobiliser
Starting Control
-
Ignition
-
Shift Position P or N
|
-
|
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.
PROCEDURE
(a) Measure the battery voltage.
Standard voltage:
11 to 14 V
HINT:
A simple method to determine whether the battery is depleted is to operate the horn.
|
OK
|
|
|
|
2.
|
READ VALUE USING TECHSTREAM (POWER SUPPLY OPEN) AND CHECK FOR DTC
|
(a) Read the value using the Techstream (Power Supply Open).
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / Smart Key / Data List.
(f) According to the display on the Techstream, read the Data List.
Smart Key
|
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
|
Power Supply Open
|
Record of malfunction of signal sent to steering lock actuator assembly (motor) from power management control ECU (open circuit) (DTC B2782 stored) /NG (PAST) or OK
|
NG (PAST): Record of malfunction (open circuit) exists
OK: No record of malfunction (open circuit)
|
This item records malfunctions in the circuit between the power management control ECU and steering lock actuator assembly (motor).
|
(g) Using the Techstream, confirm the output of DTCs for all systems.
Result
|
Result
|
Proceed to
|
|
No DTC is output and power supply open has not occurred in past
|
A
|
|
DTCs are output (except DTC B2782)
|
B
|
|
Power supply open has occurred in past and/or DTC B2782 is output
|
C
|
|
A
|
|
|
|
|
3.
|
CHECK ENGINE SWITCH CONDITION
|
(a) When the key is inside the vehicle and the shift lever is in P, push the engine switch with the brake pedal released and check that the power source mode changes.
Result
|
Result
|
Proceed to
|
|
Power source mode changes as follows (normal): off → on (ACC) → on (IG) → off
|
A
|
|
Power source mode does not change to on (IG) or on (ACC)
|
B
|
|
Power source mode does not change to on (IG) but does change to on (ACC)
|
C
|
|
Power source mode does not change to on (ACC) but does change to on (IG)
|
D
|
|
A
|
|
|
|
|
4.
|
CHECK CRANKING FUNCTION
|
(a) Get into the vehicle while carrying the key.
(b) Move the shift lever to P.
(c) Depress the brake pedal.
(d) Confirm that the engine switch indicator illuminates in green, and then press the engine switch and check that the engine cranks.
Result
|
Result
|
Proceed to
|
|
Engine does not crank
|
A
|
|
Engine cranks, but there is not initial combustion
|
B
|
|
Engine cranks, but is difficult to start
|
|
A
|
|
|
|
|
5.
|
CHECK SECURITY INDICATOR LIGHT (ENGINE IMMOBILISER SYSTEM UNSET)
|
(a) Get into the vehicle while carrying the key, move the shift lever to P, press the engine switch while not depressing the brake pedal and check that the security indicator light stops blinking and turns off at the same time the power source mode changes to on (ACC).
OK:
The security indicator light stops blinking and turns off at the same time the power source mode changes to on (ACC).
HINT:
If the security indicator light stops blinking and turns off at the same time the power source mode changes to on (ACC), the engine immobiliser function can be presumed to be normal.
|
OK
|
|
|
|
|
6.
|
CHECK ENGINE SWITCH INDICATOR LIGHT
|
(a) Get into the vehicle while carrying the key, move the shift lever to P, press the engine switch while depressing the brake pedal and check that the engine switch indicator changes.
OK:
The indicator illuminates in green.
HINT:
If the engine switch indicator illuminates in green when the procedure above is performed, the P, N and brake signals can be considered to be normal.
|
OK
|
|
|
|
|
7.
|
READ VALUE USING TECHSTREAM (STARTER SW)
|
(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 / Starting Control / Data List.
(e) Get into the vehicle while carrying the key, move the shift lever to P, press the engine switch while depressing the brake pedal and confirm that the Data List item changes.
Starting Control
|
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
|
Starter SW
|
Power management control ECU starter activation command/ON or OFF
|
ON: Starter on
OFF: Starter off
|
When there is a malfunction, the engine cannot be cranked.
|
OK:
The Data List item changes.
|
OK
|
|
|
|
|
(a) Remove the ST relay from the engine room relay block.
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection
|
Condition
|
Specified Condition
|
|
3 - 5
|
Battery voltage not applied
|
10 kΩ or higher
|
|
Battery voltage applied to terminals 1 and 2
|
Below 1 Ω
|
(c) Reinstall the ST relay to the engine room relay block.
| NG |
|
REPLACE ST RELAY
|
|
OK
|
|
|
|
|
9.
|
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)
|
(a) Disconnect the A35 power management control ECU connector.
(b) Move the shift lever to P or N.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection
|
Condition
|
Specified Condition
|
|
A35-3 (STAR) - Body ground
|
20°C (68°F)
|
93.8 to 136.4 Ω
|
|
A35-2 (STA) - Body ground
|
Text in Illustration
|
*a
|
Rear view of wire harness connector
(to Power Management Control ECU)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|
OK
|
|
|
|
|
10.
|
INSPECT STARTER ASSEMBLY
|
(a) Inspect the starter assembly (See page
).
|
OK
|
|
|
|
|
11.
|
CHECK HARNESS AND CONNECTOR (BATTERY - STARTER AND ENGINE ROOM RELAY BLOCK)
|
(a) Remove the starter assembly from the vehicle to perform an inspection.
(b) Remove the ST relay from the engine room relay block.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection
|
Condition
|
Specified Condition
|
|
h1-1 - Body ground
|
Always
|
11 to 14 V
|
|
5 - Body ground
|
Always
|
11 to 14 V
|
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection
|
Condition
|
Specified Condition
|
|
3 - B6-1
|
Always
|
Below 1 Ω
|
|
3 or B6-1 - Body ground
|
Always
|
10 kΩ or higher
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|
12.
|
READ VALUE USING TECHSTREAM (S CODE CHECK)
|
(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 / Smart Key / Data List.
(e) According to the display on the Techstream, read the Data List.
Smart Key
|
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
|
S Code Check
|
Verification result between certification ECU (smart key ECU assembly)/NG or OK
|
OK: Verification result normal
NG: Verification result abnormal
|
When a malfunction is present:
-
The ID code for the certification ECU (smart key ECU assembly) is not registered or the certification ECU (smart key ECU assembly) is malfunctioning.
-
The steering lock cannot be locked.
-
The steering lock cannot be unlocked (the engine cannot be started).
|
OK:
OK (S code certification result normal) appears on the screen.
|
OK
|
|
|
|
(a) Check that the steering lock unlocks when the engine switch is turned on (ACC).
OK:
The steering lock unlocks.
|
OK
|
|
|
|
|
14.
|
READ VALUE USING TECHSTREAM (IMMOBILISER)
|
(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 / Smart Key / Data List.
(e) According to the display on the Techstream, read the Data List.
Smart Key
|
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
|
Immobiliser
|
State of immobiliser system determined by certification ECU (smart key ECU assembly)/Set or Unset
|
Unset: Engine immobiliser unset (engine switch on [ACC] or on [IG])
Set: Engine immobiliser set (engine switch off)
|
-
When the immobiliser cannot be unset, this item can be used to determine whether the certification ECU (smart key ECU assembly) is part of the problem.
-
The engine cannot be started when this item displays "Set".
HINT:
-
The state of the immobiliser (whether it is set or unset) can be determined through the certification ECU (smart key ECU assembly). If this item displays "Set", the certification ECU (smart key ECU assembly) can be determined to be normal.
-
The security indicator light operation is only linked with the state of the immobiliser (set/unset), and is not related to the steering lock operation (lock/unlock), when the immobiliser is set, the security indicator light blinks.
|
OK:
The Data List item changes to "unset" when the engine switch is turned on (ACC) or on (IG).
|
OK
|
|
|
|
|
15.
|
READ VALUE USING TECHSTREAM (STARTER REQUEST SIGNAL)
|
(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 / 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
|
|
Starter Request Signal
|
Condition of engine start command signal/ON or OFF
|
ON: Engine switch pressed and held while carrying key with shift lever in P and brake pedal depressed
OFF: Engine switch released after approximately 1 second elapses
|
-
This item displays "ON" when cranking the engine.
-
The engine cannot be started when this item is "OFF".
|
OK:
The display changes in response to the operation of the engine switch.
NOTICE:
Make sure that the engine switch indicator is illuminated in green before pressing the engine switch.
| OK |
|
END
|
|
16.
|
READ VALUE USING TECHSTREAM (SHIFT P SIGNAL, NEUTRAL SW/ CLUTCH SW, SHIFT POSITION P OR N)
|
(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 / Smart Key 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
|
|
Shift P Signal
|
Shift position (P)/ON or OFF
|
ON: Shift lever in P
OFF: Shift lever not in P
|
-
Use this item to determine if the shift position switch is malfunctioning.
-
The engine cannot be started when this item is "OFF".
|
|
Neutral SW/ Clutch SW
|
Shift position (P, N) /ON or OFF
|
ON: Shift lever in P or N
OFF: Shift lever not in P or N
|
-
Use this item to help determine if the park/neutral position switch is malfunctioning.
-
The engine cannot be started when this item is "OFF".
|
Starting Control
|
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
|
Shift Position P or N
|
Condition of park/neutral position switch/ON or OFF
|
ON: Shift lever in P or N
OFF: Shift lever not in P or N
|
When there is a malfunction, the engine cannot be cranked.
|
OK:
The item in the Data List changes according to the shift position.
|
OK
|
|
|
|
|
17.
|
READ VALUE USING TECHSTREAM (STOP LIGHT SWITCH1)
|
(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 / 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
|
|
Stop Light Switch1
|
Stop light switch 1/ON or OFF
|
ON: Brake pedal depressed
OFF: Brake pedal released
|
-
|
OK:
The item in the Data List changes when the brake pedal is depressed and released.
Result
|
Result
|
Proceed to
|
|
OK
|
A
|
|
NG (for Bulb Type Stop Light)
|
B
|
|
NG (for LED Type Stop Light)
|
C
|
|
18.
|
INSPECT PARK/NEUTRAL POSITION SWITCH
|
(a) Disconnect the B3 park/neutral position switch connector.
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection
|
Condition
|
Specified Condition
|
|
4 (B) - 5 (L)
|
Shift lever in P or N
|
Below 1 Ω
|
|
Shift lever not in P or N
|
10 kΩ or higher
|
Text in Illustration
|
*a
|
Component without harness connected
(Park/Neutral Position Switch)
|
|
|
|
OK
|
|
|
|
|
19.
|
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - PARK/NEUTRAL POSITION SWITCH)
|
(a) Disconnect the A35 power management control ECU connector.
(b) Disconnect the B3 park/neutral position switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection
|
Condition
|
Specified Condition
|
|
A35-3 (STAR) - B3-4 (B)
|
Always
|
Below 1 Ω
|
|
A35-3 (STAR) - Body ground
|
Always
|
10 kΩ or higher
|
(d) Reconnect the park/neutral position switch connector.
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection
|
Condition
|
Specified Condition
|
|
A35-3 (STAR) - Body ground
|
Engine switch pressed and held with brake pedal depressed (starter on) → Engine switch released after approximately 1 second elapses (starter off)
|
6 V or more* → 1.8 V or less
|
HINT:
*: When the engine is cranking, the battery voltage may momentarily drop to approximately 6 V.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|
20.
|
INSPECT STOP LIGHT SWITCH ASSEMBLY
|
(a) Disconnect the A58 stop light switch assembly connector.
(b) Inspect the stop light switch assembly (See page
).
|
OK
|
|
|
|
|
21.
|
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - STOP LIGHT SWITCH ASSEMBLY)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|
22.
|
CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - POWER SOURCE AND BODY GROUND)
|
|
(a) Disconnect the stop light switch assembly connector.
|
|
(b) Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage
|
Tester Connection
|
Switch Condition
|
Specified Condition
|
|
A59-1 (B) - A59-3 (GND)
|
Engine switch off
|
11 to 14 V
|
Standard Resistance
|
Tester Connection
|
Condition
|
Specified Condition
|
|
A59-3 (GND) - Body ground
|
Always
|
Below 1 Ω
|
Text in Illustration
|
*a
|
Front view of wire harness connector
(to Stop Light Switch Assembly)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|
OK
|
|
|
|
|
23.
|
INSPECT STOP LIGHT SWITCH ASSEMBLY
|
|
(a) Reconnect the stop light switch assembly connector.
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage
|
Tester Connection
|
Switch Condition
|
Specified Condition
|
|
A59-2 (L) - A59-3 (GND)
|
Engine switch off, Brake pedal not depressed
|
Below 1 Ω
|
|
A59-2 (L) - A59-3 (GND)
|
Engine switch off, Brake pedal depressed
|
11 to 14 V
|
Text in Illustration
|
*a
|
Component with harness connected
(Stop Light Switch Assembly)
|
|
OK
|
|
|
|
|
24.
|
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - STOP LIGHT SWITCH ASSEMBLY)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|
25.
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
|
(a) Replace the certification ECU (smart key ECU assembly) with a new one (See page
).
(b) Perform the registration procedures (See page
).
(c) Use the Data List to check if S code certification is functioning properly again.
Smart Key
|
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
|
S Code Check
|
Verification result between certification ECU (smart key ECU assembly)/NG or OK
|
OK: Verification result normal
NG: Verification result abnormal
|
When a malfunction is present:
-
The ID code for the certification ECU (smart key ECU assembly) is not registered or the certification ECU (smart key ECU assembly) is malfunctioning.
-
The steering lock cannot be locked.
-
The steering lock cannot be unlocked (the engine cannot be started).
|
| NEXT |
|
END
|
|
26.
|
READ VALUE USING TECHSTREAM (STEERING UNLOCK SWITCH)
|
(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 / 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
|
|
Steering Unlock Switch
|
State of steering unlock sensor signal output from steering lock actuator assembly/ON or OFF
|
ON: Steering lock unlocked
OFF: Steering lock locked
|
-
When the shift lever is in P and the engine switch is off, if any door is opened or closed, the steering lock is locked.
-
When the key is inside the vehicle and the engine switch is turned on (ACC) or on (IG), the steering lock unlocks.
-
The engine cannot be started when the steering unlock signal is off.
|
OK:
The item in the Data List indicates "OFF" (the steering lock is locked).
|
NG
|
|
|
|
|
27.
|
READ VALUE USING TECHSTREAM (L CODE CHECK)
|
(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 / Smart Key / Data List.
(e) According to the display on the Techstream, read the Data List.
Smart Key
|
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
|
L Code Check
|
Verification result between certification ECU (smart key ECU assembly) and steering lock actuator assembly/NG or OK
|
OK: Verification result normal
NG: Verification result abnormal
|
When a malfunction is present:
-
The ID code for the certification ECU (smart key ECU assembly) or steering lock actuator assembly is not registered or the certification ECU (smart key ECU assembly) or steering lock actuator is malfunctioning.
-
The steering lock cannot be locked.
-
The steering lock cannot be unlocked (the engine cannot be started).
|
OK:
The Data List item changes to "OK" when the key is inside the vehicle.
HINT:
Reasons for verification failure:
-
The steering lock ECU or certification ECU (smart key ECU assembly) is malfunctioning.
-
There is a problem with the communication between ECUs.
-
An ECU is replaced, but is not registered.
-
An ECU is replaced with an ECU which has a code already stored in it.
|
OK
|
|
|
|
|
28.
|
INSPECT STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)
|
| NEXT |
|
END
|
|
29.
|
REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)
|
(a) Replace the steering lock actuator assembly (steering lock ECU) with a new one (See page
).
(b) Perform the registration procedures (See page
).
(c) Use the Data List to check if L code certification is functioning properly again.
Smart Key
|
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
|
L Code Check
|
Verification result between certification ECU (smart key ECU assembly) and steering lock actuator assembly/NG or OK
|
OK: Verification result normal
NG: Verification result abnormal
|
When a malfunction is present:
-
The ID code for the certification ECU (smart key ECU assembly) or steering lock actuator assembly is not registered or the certification ECU (smart key ECU assembly) or steering lock actuator is malfunctioning.
-
The steering lock cannot be locked.
-
The steering lock cannot be unlocked (the engine cannot be started).
|
OK:
OK (L code certification result normal) appears on the screen.
| OK |
|
END
|
|
NG
|
|
|
|
|
30.
|
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
|
(a) Replace the certification ECU (smart key ECU assembly) with a new one (See page
).
(b) Perform the registration procedures (See page
).
(c) Use the Data List to check if S code certification is functioning properly again.
Smart Key
|
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
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S Code Check
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Verification result between certification ECU (smart key ECU assembly)/NG or OK
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OK: Verification result normal
NG: Verification result abnormal
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When a malfunction is present:
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The ID code for the certification ECU (smart key ECU assembly) is not registered or the certification ECU (smart key ECU assembly) is malfunctioning.
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The steering lock cannot be locked.
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The steering lock cannot be unlocked (the engine cannot be started).
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END
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