RM38T0EC _58 Vehicle Interior _115230 THEFT DETERRENT / KEYLESS ENTRY _0606512 SMART ENTRY AND START SYSTEM(for Start Function, HEV Model) J

THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Start Function, HEV Model) Power Source Mode does not Change to ON (READY)

DESCRIPTION

When the electrical key transmitter sub-assembly is in the cabin and the power switch is pressed, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode. Additionally, when the shift lever is in P and the brake pedal is depressed, the hybrid control system can be started by pressing the power switch. The hybrid control system can also be started by pressing the power switch with the shift lever in P and the brake pedal depressed.

Related Data List and Active Test Items
Problem Symptom	Data List and Active Test
Power source mode does not change to ON (READY)	Power Source Control · Stop Light Switch · Shift P Signal · Power Supply Condition Entry&Start · Immobiliser · Start Request · S Code Check · L Code Check

WIRING DIAGRAM

1.656,0.719 2.115,0.917 0.458,0.198 10 false I18 1.646,0.885 3.896,1.167 2.25,0.281 10 false Shift Lock Control Unit Assembly 2.875,0.26 3.188,0.458 0.313,0.198 10 false P2 3.135,0.26 3.292,0.458 0.156,0.198 10 false 5 5.177,2 5.792,2.198 0.615,0.198 10 false I223 5.167,4.958 5.781,5.156 0.615,0.198 10 false I223 5.167,0.365 5.781,0.563 0.615,0.198 10 false I222 1.479,3.573 2.094,3.771 0.615,0.198 10 false A197 1.51,4.958 1.979,5.219 0.469,0.26 10 false I278 1.708,2.594 2.167,2.792 0.458,0.198 10 false A53 1.698,2.76 3.948,3.042 2.25,0.281 10 false Stop Light Switch Assembly 1.531,1.927 2.146,2.125 0.615,0.198 10 false STOP 0.135,1.76 1.01,2.323 0.875,0.563 10 false from Auxiliary Battery 2.01,1.667 2.167,1.865 0.156,0.198 10 false 7 2,2.031 2.156,2.229 0.156,0.198 10 false 2 3.146,1.896 3.302,2.094 0.156,0.198 10 false 3 2.177,1.781 2.333,1.979 0.156,0.198 10 false B 2.167,2.146 2.625,2.344 0.458,0.198 10 false GND 2.958,1.896 3.115,2.094 0.156,0.198 10 false L 5.229,1.802 5.563,2.094 0.333,0.292 10 false 21 5.573,1.896 6.188,2.094 0.615,0.198 10 false STP1 5.219,0.177 5.531,0.375 0.313,0.198 10 false 14 5.583,0.365 5.74,0.563 0.156,0.198 10 false P 6.406,2.115 6.719,2.313 0.313,0.198 10 false IC 6.417,5.146 6.625,5.406 0.208,0.26 10 false IC 5.25,4.76 5.406,4.958 0.156,0.198 10 false 2 5.74,4.594 6.052,4.792 0.313,0.198 10 false +B 5.563,4.844 6.021,5.042 0.458,0.198 10 false ST2 5.521,5.958 7.031,6.385 1.51,0.427 10 false Certification ECU (Smart Key ECU Assembly) 1.563,4.76 1.875,4.958 0.313,0.198 10 false 11 1.563,3.375 1.875,3.573 0.313,0.198 10 false 22 1.083,3.552 1.542,3.75 0.458,0.198 10 false STP 1.104,4.844 1.563,5.042 0.458,0.198 10 false ST2 0.167,5.99 4.146,6.188 3.979,0.198 10 false Hybrid Vehicle Control ECU 3.25,3.917 3.865,4.115 0.615,0.198 10 false A151 3.25,4.073 4.792,4.573 1.542,0.5 10 false Skid Control ECU (Brake Actuator Assembly) 3.594,3.458 3.906,3.656 0.313,0.198 10 false 43 3.854,3.573 4.469,3.771 0.615,0.198 10 false STP

CAUTION / NOTICE / HINT

NOTICE:: ·

When using the GTS with the ignition 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, HEV Model)>HOW TO PROCEED WITH TROUBLESHOOTING202307,999999,_58,_115230,_0606512,RM100000002C24Z,

·

If the smart entry and start system (for Start Function) has been canceled, enable the system before performing troubleshooting.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, HEV Model)>CUSTOMIZE PARAMETERS202307,999999,_58,_115230,_0606512,RM100000002C252,

·

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

·

Before replacing the certification ECU (smart key ECU assembly) or electrical key transmitter sub-assembly, refer to Service Bulletin.

·

After completing repairs, confirm that the problem does not recur.

·

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

PROCEDURE

1.CHECK POWER SWITCH CONDITION

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

Move the shift lever to P.

With the brake pedal released, check that pressing the power switch causes the power source mode to change.

Result:

Result	Proceed to
Power source mode changes : Off → ACC → ON → off	A
Power source mode does not change to ACC or ON	B
Power source mode changes to ON but not to ACC	C
Power source mode changes to ACC but not to ON	D

2.READ VALUE USING GTS (STOP LIGHT SWITCH)

GO TO OTHER PROBLEM (Power Source Mode does not Change to ON (IG and ACC))

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, HEV Model)>Power Source Mode does not Change to ON (IG and ACC)202307,999999,_58,_115230,_0606512,RM100000002C25V,

GO TO OTHER PROBLEM (Power Source Mode does not Change to ON (ACC))

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, HEV Model)>Power Source Mode does not Change to ON (ACC)202307,999999,_58,_115230,_0606512,RM100000002C25X,

GO TO OTHER PROBLEM (Power Source Mode does not Change to ON (IG))

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, HEV Model)>Power Source Mode does not Change to ON (IG)202307,999999,_58,_115230,_0606512,RM100000002C25W,

2.READ VALUE USING GTS (STOP LIGHT SWITCH)

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
Stop Light Switch	State of brake pedal	OFF or ON	OFF: Brake pedal released ON: Brake pedal depressed	· Use this item to determine if the stop light switch assembly is malfunctioning. · The hybrid control system cannot be started when this item is OFF. · If the stop light switch assembly is malfunctioning, the hybrid control system can be started by pressing and holding the power switch for a certain period of time.

Body Electrical > Power Source Control > Data List

Tester Display
Stop Light Switch

50003 454 206

OK:: The GTS display changes correctly in response to the brake pedal operation.

Result:

Proceed to
OK
NG

3.READ VALUE USING GTS (SHIFT P SIGNAL)

11.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - POWER SOURCE AND BODY GROUND)

3.READ VALUE USING GTS (SHIFT P SIGNAL)

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
Shift P Signal	Shift position P	OFF or ON	OFF: Shift lever not in P ON: Shift lever in P	· Use this item to determine if the shift position switch is malfunctioning. · The hybrid control system cannot be started when this item is OFF.

Body Electrical > Power Source Control > Data List

Tester Display
Shift P Signal

50003 454 205

OK:: The GTS display changes correctly in response to the shift lever operation.

Result:

Proceed to
OK
NG

4.READ VALUE USING GTS (POWER SUPPLY CONDITION)

8.CHECK SHIFT LOCK CONTROL UNIT ASSEMBLY

4.READ VALUE USING GTS (POWER SUPPLY CONDITION)

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
Power Supply Condition	Power supply state	OFF, ACC ON, IGR ON, IGP ON or Starter ON	OFF: Ignition switch off ACC ON: Ignition switch ACC IGR ON: Ignition switch ON IGP ON: Ignition switch ON Starter ON: Sending hybrid control system start request signal	-

Body Electrical > Power Source Control > Data List

Tester Display
Power Supply Condition

50003 454 405

NOTICE:: Check that the key indicator display is displayed on the multi-information display in the combination meter assembly, and then press the power switch.

OK:: The GTS display changes correctly in response to the power switch operation.

Result:

Proceed to
OK
NG

5.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - HYBRID VEHICLE CONTROL ECU)

7.CHECK SECURITY INDICATOR LIGHT (IMMOBILISER FUNCTION UNSET)

5.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - HYBRID VEHICLE CONTROL ECU)

Disconnect the I223 certification ECU (smart key ECU assembly) connector.

Disconnect the I278 hybrid vehicle control ECU connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
I223-2 (ST2) - I278-11 (ST2)	Always	Below 1 Ω
I223-2 (ST2) or I278-11 (ST2) - Other terminals and body ground	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

6.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

Connect the I223 certification ECU (smart key ECU assembly) connector.

Connect the I278 hybrid vehicle control ECU connector.

1.313,0.031 1.729,0.271 0.417,0.24 1.115,1.865 2.104,0.698 true 0.146,0.073 0.458,0.271 0.313,0.198 10 false *a 1.396,0.052 1.844,0.24 0.448,0.188 10 false I223 0.813,1.792 1.125,1.99 0.313,0.198 10 false ST2

*a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
I223-2 (ST2) - Body ground	With the brake pedal depressed, the power switch is pressed and held → After approx. 3 sec. has elapsed, the power switch is released	8.5 V or higher → 1.0 V or less

Result:

Proceed to
OK
NG

GO TO HYBRID CONTROL SYSTEM

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING202307,999999,_51,_144957,_0604232,RM100000002BTK7,

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

7.CHECK SECURITY INDICATOR LIGHT (IMMOBILISER FUNCTION UNSET)

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

Move the shift lever to P.

Press the power switch with the brake pedal released and check that the security indicator light changes from blinking to off at the same time that the power source mode changes to ACC.

OK:: The security indicator light changes from blinking to off at the same time that the power source mode changes to ACC.

HINT:: The immobiliser function can be determined to be operating correctly if the security indicator light changes from blinking to off at the same time that the power source mode changes to ACC.

Result:

Proceed to
OK
NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

GO TO OTHER PROBLEM (Immobiliser System does not Operate Properly)

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, HEV Model)>Immobiliser System does not Operate Properly202307,999999,_58,_115230,_0606512,RM100000002C266,

8.CHECK SHIFT LOCK CONTROL UNIT ASSEMBLY

1.583,0.042 1.979,0.25 0.396,0.208 2.229,1.885 1.677,0.833 true 0.125,0.063 0.438,0.26 0.313,0.198 10 false *a 1.656,0.052 1.969,0.25 0.313,0.198 10 false I222 2.333,1.802 2.698,1.99 0.365,0.188 10 false P

*a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
I222-14 (P) - Body ground	Shift lever in P → Shift lever not in P	9 V or higher → 2.76 V or less

Result:

Proceed to
OK
NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

9.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - SHIFT LOCK CONTROL UNIT ASSEMBLY)

Disconnect the I222 certification ECU (smart key ECU assembly) connector.

Disconnect the I18 shift lock control unit assembly connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
I222-14 (P) - I18-5 (P2)	Always	Below 1 Ω
I222-14 (P) or I18-5 (P2) - Other terminals and body ground	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

10.CHECK SHIFT LOCK CONTROL UNIT ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.CHECK SHIFT LOCK CONTROL UNIT ASSEMBLY

*a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))

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

Standard Voltage:

Tester Connection	Condition	Specified Condition
I222-14 (P) - Body ground	Shift lever in P	9 V or higher

Result:

Proceed to
OK
NG

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

Click hereDrivetrain>PB10 (HYBRID TRANSMISSION / TRANSAXLE)>SHIFT LEVER>DISASSEMBLY202307,999999,_52,_144756,_0603123,RM100000002BO87,

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

11.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - POWER SOURCE AND BODY GROUND)

Disconnect the stop light switch assembly connector.

1.469,0.115 1.969,0.365 0.5,0.25 2.635,1.833 2.24,1.344 true 0.927,1.833 1.292,1.365 true 0.115,0.125 0.427,0.281 0.313,0.156 10 false *a 1.594,0.156 1.906,0.313 0.313,0.156 10 false A53 2.75,1.76 3.063,1.917 0.313,0.156 10 false B 0.583,1.76 1.031,1.969 0.448,0.208 10 false GND

*a	Front view of wire harness connector (to Stop Light Switch Assembly)

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

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
A53-7 (B) - Body ground	Ignition switch off	11 to 14 V

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
A53-2 (GND) - Body ground	Always	Below 1 Ω

Result:

Proceed to
OK
NG

12.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - STOP LIGHT SWITCH ASSEMBLY)

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - STOP LIGHT SWITCH ASSEMBLY)

Disconnect the A53 stop light switch assembly connector.

Disconnect the I223 certification ECU (smart key ECU assembly) connector.

Disconnect the A197 hybrid vehicle control ECU connector.

Disconnect the A151 skid control ECU (brake actuator assembly) connector.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
I223-21 (STP1) - A53-3 (L)	Always	Below 1 Ω
I223-21 (STP1) or A53-3 (L) - Other terminals and body ground	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

13.CHECK STOP LIGHT SWITCH ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

13.CHECK STOP LIGHT SWITCH ASSEMBLY

Check the stop light switch assembly.

Click hereVehicle Exterior>LIGHTING (EXT)>STOP LIGHT SWITCH>ON-VEHICLE INSPECTION202201,999999,_59,_112294,_0501115,RM100000001Z4Y6,

Result:

Proceed to
OK
NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

REPLACE STOP LIGHT SWITCH ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>STOP LIGHT SWITCH>REMOVAL202201,999999,_59,_112294,_0501115,RM100000001Z4Y5,