RM3660EC _58 Vehicle Interior _080747 THEFT DETERRENT / KEYLESS ENTRY _0586354 SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model (NR Series)) C

THEFT DETERRENT / KEYLESS ENTRY  SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model (NR Series))  B2285  Steering Lock Position Signal Circuit Malfunction  


DESCRIPTION

This DTC is stored when the steering lock position signal sent by the steering lock ECU (steering lock actuator or upper bracket assembly) via direct line and the steering lock position signal sent via LIN communication do not match.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B2285 Steering Lock Position Signal Circuit Malfunction The steering lock position signal sent by the steering lock ECU (steering lock actuator or upper bracket assembly) via direct line and the steering lock position signal sent via LIN communication do not match. (1-trip detection logic*)
·

LIN communication system

·

Steering lock ECU (steering lock actuator or upper bracket assembly)

·

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 then reconnect the cable to the negative (-) battery terminal. Wait at least 40 seconds with the engine switch off (wait is the steering locked), then turn the engine switch on (IG) (steering unlocked) and wait at least 40 seconds.



*: 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
The engine cannot be started. The ECU does not send an engine start request.

Related Data List and Active Test Items
DTC No. Data List and Active Test
B2285
Power Source Control

Steering Unlock Switch


Entry&Start
·

Power Supply Short

·

Motor Driver Short

·

Lock Bar Stuck Error



WIRING DIAGRAM

B463084E29
5.927,0.667 6.24,0.865 0.313,0.198 10 false +B 6.417,1.375 6.729,1.573 0.313,0.198 10 false IC 5.635,1.302 6,1.51 0.365,0.208 10 false SLP 5.375,1.281 5.74,1.49 0.365,0.208 10 false 12 5.406,2.521 6.094,2.76 0.688,0.24 10 false I1 5.406,2.688 6.927,3.083 1.521,0.396 10 false Certification ECU (Smart Key ECU Assembly) 0.563,5.448 2.865,5.635 2.302,0.188 10 false : LIN Communication Line 1.26,4.5 3.563,4.688 2.302,0.188 10 false I72 1.24,4.698 3.323,4.969 2.083,0.271 10 false Telematics Transceiver* 2.24,3.99 2.688,4.198 0.448,0.208 10 false SLPD 2.688,3.885 3.135,4.094 0.448,0.208 10 false 30 0.365,2.688 3.052,3.083 2.688,0.396 10 false Steering Lock ECU (Steering Lock Actuator or Upper Bracket Assembly) 0.365,2.521 2.198,2.865 1.833,0.344 10 false I59 0.854,2.135 1.885,2.542 1.031,0.406 10 false Unlock Sensor 1.771,0.802 2.083,1 0.313,0.198 10 false +B 2.26,1.281 2.979,1.625 0.719,0.344 10 false SLP1 2.719,1.281 3.083,1.49 0.365,0.208 10 false 4 3.583,4.708 6.615,4.917 3.031,0.208 10 false *: w/ Engine Start and Stop Function

CAUTION / NOTICE / HINT

NOTICE:
·

When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

·

The smart entry and start system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart entry and start system (for Start Function) after confirming that the communication systems are functioning properly.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model (NR Series))>HOW TO PROCEED WITH TROUBLESHOOTING

·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

Before replacing the certification ECU (smart key ECU assembly) or steering lock ECU (steering lock actuator or upper bracket assembly), refer to Service Bulletin.

·

After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".



PROCEDURE

1.CHECK FOR DTC
a.

Check for DTCs.

Body Electrical > Entry&Start > Trouble Codes
50001 125
HINT:
·

If the steering cannot be unlocked, the engine switch cannot be turned on (IG) and the engine cannot be started.

·

If LIN communication is not available, the steering cannot be locked or unlocked.



OK:

LIN communication system DTC B2785 is not output simultaneously.



Result:
Proceed to
OK
NG



OK

2.READ VALUE USING GTS (STEERING UNLOCK SWITCH)

NG

GO TO LIN COMMUNICATION SYSTEM (DTC B2785)

Click herePower Source / Network>NETWORKING>LIN COMMUNICATION SYSTEM (for NR Series Engine)>B2785


2.READ VALUE USING GTS (STEERING UNLOCK SWITCH)
a.

Connect the GTS to the DLC3.


b.

Turn the engine switch on (IG).


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Power Source Control / Data List.


e.

Read the Data List according to the display on the GTS.

Body Electrical > Power Source Control > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Steering Unlock Switch State of steering unlock sensor signal output from steering lock ECU (steering lock actuator or upper bracket assembly) OFF or ON OFF: Steering locked
ON: Steering unlocked
·

When the shift lever is in P and the engine switch is off, if any door is opened or closed, the steering is locked.

·

When the electrical key transmitter sub-assembly is in the cabin and the engine switch is turned on (ACC) or on (IG), the steering unlocks.

·

The engine cannot be started when the steering unlock signal is off.


Body Electrical > Power Source Control > Data List
Tester Display
Steering Unlock Switch
50003 223 2
OK:

The GTS display changes.



Result:
Proceed to
OK
NG



OK

REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY)

Click hereSteering>STEERING COLUMN>STEERING COLUMN ASSEMBLY>DISASSEMBLY


NG

3.CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY)
3.CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY)
a.
C342153C30
1.521,0.167 1.938,0.417 0.417,0.25 1.365,1.792 1.719,1.792 1.719,1.792 1.719,1.135 true 0.188,0.177 0.5,0.375 0.313,0.198 10 false *a 1.625,0.198 2.021,0.427 0.396,0.229 10 false I59 0.958,1.708 1.396,1.917 0.438,0.208 10 false SLP1
*a Component with harness connected
(Steering Lock ECU (Steering Lock Actuator or Upper Bracket Assembly))


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I59-4 (SLP1) - Body ground Positive (+) tester probe → I59-4 (SLP1)
Negative (-) tester probe → Body ground 		Steering locked → unlocked* 10 kΩ or higher → Below 1 Ω


HINT:
·

*: If any of the doors are opened with the engine switch off, the steering will be locked. If the engine switch is turned on (ACC) or on (IG) with the electrical key transmitter sub-assembly in the cabin, the steering will be unlocked.

·

DTC B2285 may be stored due to a malfunction in the steering lock ECU (steering lock actuator or upper bracket assembly). The steering lock position signal and unlock position signal are sent from the steering lock ECU (steering lock actuator or upper bracket assembly) to the certification ECU (smart key ECU assembly) individually.




Result:
Result Proceed to
OK (except Remote Engine Start and Stop Function) A
OK (for Remote Engine Start and Stop Function) B
NG C



A

4.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY))

B

5.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY) - DCM)

C

REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY)

Click hereSteering>STEERING COLUMN>STEERING COLUMN ASSEMBLY>DISASSEMBLY


4.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY))
a.

Disconnect the I1 certification ECU (smart key ECU assembly) connector.


b.

Disconnect the I59 steering lock ECU (steering lock actuator or upper bracket assembly) connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I1-12 (SLP) - I59-4 (SLP1) Always Below 1 Ω
I1-12 (SLP) or I59-4 (SLP1) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY) - DCM)
a.

Disconnect the I1 certification ECU (smart key ECU assembly) connector.


b.

Disconnect the I59 steering lock ECU (steering lock actuator or upper bracket assembly) connector.


c.

Disconnect the I72 telematics transceiver connector.


d.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I1-12 (SLP) - I59-4 (SLP1) Always Below 1 Ω
I59-4 (SLP1) - I72-30 (SLPD) Always Below 1 Ω
I1-12 (SLP), I59-4 (SLP1) or I72-30 (SLPD) - Other terminals and body ground Always 10 kΩ or higher



e.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
I1-12 (SLP), I59-4 (SLP1) or I72-30 (SLPD) - Body ground Always Below 1 V



Result:
Proceed to
OK
NG



OK

6.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
a.

Check the push-button start function.

i.

Enter the vehicle while carrying an electrical key transmitter sub-assembly.


ii.

Depress the brake pedal with the shift lever in P.


iii.

Check that the engine starts when the engine switch is pressed.



Result:
Result Proceed to
Engine starts A
Engine does not start B



A

REPLACE TELEMATICS TRANSCEIVER

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS TRANSCEIVER>REMOVAL


B

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)