RM38N0EC _58 Vehicle Interior _111832 THEFT DETERRENT / KEYLESS ENTRY _0509385 SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model) J

THEFT DETERRENT / KEYLESS ENTRY  SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model)  Engine does not Start  


DESCRIPTION

When the electrical key transmitter sub-assembly is in the cabin and the engine 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 engine can be started by pressing the engine switch.

Related Data List and Active Test Items
Problem Symptom Data List and Active Test
Engine does not start
Power Source Control
·

Stop Light Switch

·

Shift P Signal

·

Starter Relay Driving Request (Starting Control)

·

Starter Relay

·

Power Supply Condition


Entry&Start
·

Immobiliser

·

L Code Check

·

S Code Check



WIRING DIAGRAM

B681316E01
5.938,1.917 6.396,2.115 0.458,0.198 10 false STP 5.938,2.208 6.396,2.406 0.458,0.198 10 false P2 5.729,1.802 6.188,2 0.458,0.198 10 false 4 5.719,2.208 6.177,2.406 0.458,0.198 10 false 3 5.615,2.708 6.073,2.906 0.458,0.198 10 false E25 5.604,2.875 7.021,3.302 1.417,0.427 10 false Shift Lock Control Unit Assembly 5.583,3.667 6.042,3.865 0.458,0.198 10 false 14 5.594,4.177 6.052,4.375 0.458,0.198 10 false 21 5.552,3.885 6.01,4.083 0.458,0.198 10 false E52 5.552,4.385 6.01,4.583 0.458,0.198 10 false A15 5.917,4.271 6.375,4.469 0.458,0.198 10 false STP1 5.948,3.896 6.406,4.094 0.458,0.198 10 false P 6.583,4.469 7.042,4.667 0.458,0.198 10 false IC 5.542,5.125 7.073,5.552 1.531,0.427 10 false Certification ECU (Smart Key ECU Assembly) 1.375,0.396 1.833,0.594 0.458,0.198 10 false 41 1.375,1.813 1.833,2.01 0.458,0.198 10 false 34 0.125,0.844 0.583,1.042 0.458,0.198 10 false A40 0.104,1.021 3.125,1.438 3.021,0.417 10 false Skid Control ECU (Brake Actuator Assembly) 0.865,2.313 2.073,2.729 1.208,0.417 10 false ECM 0.479,2.313 0.938,2.51 0.458,0.198 10 false A109 0.969,0.51 1.427,0.708 0.458,0.198 10 false STP 0.979,1.938 1.438,2.135 0.458,0.198 10 false STP 0.229,4.146 1.115,4.625 0.885,0.479 10 false from Auxiliary Battery 1.656,4.333 2.115,4.531 0.458,0.198 10 false STOP 2.156,4.052 2.615,4.25 0.458,0.198 10 false 7 2.156,4.417 2.615,4.615 0.458,0.198 10 false 2 2.354,4.188 2.813,4.385 0.458,0.198 10 false B 2.344,4.542 2.802,4.74 0.458,0.198 10 false GND 2.781,4.385 3.24,4.583 0.458,0.198 10 false IC 3.115,4.281 3.573,4.479 0.458,0.198 10 false L 3.302,4.281 3.76,4.479 0.458,0.198 10 false 3 2.094,4.969 2.552,5.167 0.458,0.198 10 false A43 2.083,5.135 4.344,5.479 2.26,0.344 10 false Stop Light Switch Assembly

B681315E01
6.583,3.885 6.896,4.083 0.313,0.198 10 false IC 5.896,1.302 6.302,1.5 0.406,0.198 10 false STA 6.125,3.26 6.438,3.458 0.313,0.198 10 false +B 5.698,1.219 5.896,1.417 0.198,0.198 10 false 3 5.646,3.604 6.042,3.875 0.396,0.271 10 false 10 5.885,3.604 6.448,3.99 0.563,0.385 10 false STAR 5.469,4.646 5.76,4.833 0.292,0.188 10 false A15 5.469,4.823 7,5.26 1.531,0.438 10 false Certification ECU (Smart Key ECU Assembly) 5.833,5.729 6.688,6.115 0.854,0.385 10 false from Auxiliary Battery 4.51,5.76 4.75,5.938 0.24,0.177 10 false B9 4.542,5.542 4.667,5.74 0.125,0.198 10 false 1 3.719,5.375 4.031,5.573 0.313,0.198 10 false 2 3.344,5.365 3.656,5.563 0.313,0.198 10 false C80 3.521,5.615 3.833,5.813 0.313,0.198 10 false ST 3.167,6.313 4.302,6.521 1.135,0.208 10 false Starter Assembly 4.25,5.635 4.563,5.833 0.313,0.198 10 false B 4.094,4.021 4.667,4.219 0.573,0.198 10 false ST NO.1 3.698,4.365 4.458,4.646 0.76,0.281 10 false ST NO.1 3.104,4.688 3.229,4.906 0.125,0.219 10 false 1 3.354,4.688 3.49,4.885 0.135,0.198 10 false 3 3.083,4.021 3.396,4.219 0.313,0.198 10 false 2 3.344,4.021 3.656,4.219 0.313,0.198 10 false 5 1.365,1.219 1.552,1.396 0.188,0.177 10 false 81 1.344,3.615 1.563,3.813 0.219,0.198 10 false 18 0.958,3.729 1.292,3.927 0.333,0.198 10 false STA 0.844,1.302 1.604,1.688 0.76,0.385 10 false PPOS 0.385,4.823 1.104,5.302 0.719,0.479 10 false A109 0.875,4.833 1.24,5.031 0.365,0.198 10 false ECM 4.688,2.365 5.146,2.594 0.458,0.229 10 false A106 4.698,2.542 5.74,2.948 1.042,0.406 10 false Engine Stop and Start ECU 4.083,2.823 4.427,3 0.344,0.177 10 false STA 4.26,3.052 4.469,3.24 0.208,0.188 10 false 21

CAUTION / NOTICE / HINT

NOTICE:
·

When using the GTS with the ignition switch off, perform lock and unlock operations using the door control switch of the multiplex network master switch assembly at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins, and then select the vehicle model manually.

Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start (CAN). While using the GTS, periodically perform lock and unlock operations using the door control switch of the multiplex network master switch assembly 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)>HOW TO PROCEED WITH TROUBLESHOOTING

·

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

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model)>CUSTOMIZE PARAMETERS

·

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

·

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

·

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

·

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



HINT:
·

If the ignition switch is changed from ON to ACC with the shift lever in any position other than P, and then the shift lever is moved to P and the engine switch is pressed with the brake pedal depressed, the ignition switch will turn off.

·

If the brake pedal is repeatedly depressed while the engine is stopped, the brake booster pressure will be released and the force required to depress the brake pedal to illuminate the stop lights will increase.



PROCEDURE

1.CHECK WHETHER ENGINE STARTS
a.

Using an electrical key transmitter sub-assembly which is registered to the vehicle, turn the ignition switch to ON.


b.

Check that the engine can be started 5 seconds after the ignition switch turned to ON.

OK:

Engine starts normally.



Result:
Proceed to
OK
NG



OK

CHECK VEHICLE CONTROL HISTORY (ROB)

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Start Function, Gasoline Model)>CHECK FOR INTERMITTENT PROBLEMS


NG

2.CHECK SECURITY INDICATOR LIGHT (IMMOBILISER FUNCTION UNSET)
2.CHECK SECURITY INDICATOR LIGHT (IMMOBILISER FUNCTION UNSET)
a.

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


b.

Move the shift lever to P.


c.

Press the engine 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



OK

3.CHECK FOR DTC

NG

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, Gasoline Model)>Immobiliser System does not Operate Properly


3.CHECK FOR DTC
a.

Using the GTS, check if LIN communication DTC B278588 and B278987 are output.

Body Electrical > Entry&Start > Trouble Codes
50001 440
OK:

DTC B278588 and B278987 are not output.



Result:
Proceed to
OK
NG



OK

4.CHECK ENGINE CRANKING OPERATION

NG

GO TO LIN COMMUNICATION SYSTEM (DTC B278588)

Click herePower Source / Network>NETWORKING>LIN COMMUNICATION SYSTEM>B278588


4.CHECK ENGINE CRANKING OPERATION
a.

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


b.

Move the shift lever to P.


c.

Check that the key indicator display is displayed on the multi-information display in the combination meter assembly, and then press the engine switch and check that the engine cranks.


Result:
Result Proceed to
Engine cranks and initial combustion occurs A
Engine cranks but initial combustion does not occur B
Engine does not crank C



A

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, Gasoline Model)>Immobiliser System does not Operate Properly


B

GO TO SFI SYSTEM

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>SFI SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


C

5.CHECK ENGINE SWITCH CONDITION
5.CHECK ENGINE SWITCH CONDITION
a.

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


b.

Move the shift lever to P.


c.

With the brake pedal released, check that pressing the engine 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



A

6.READ VALUE USING GTS (STOP LIGHT SWITCH1)

B

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, Gasoline Model)>Power Source Mode does not Change to ON (IG and ACC)


C

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, Gasoline Model)>Power Source Mode does not Change to ON (ACC)


D

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, Gasoline Model)>Power Source Mode does not Change to ON (IG)


6.READ VALUE USING GTS (STOP LIGHT SWITCH1)
a.

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 engine cannot be started when this item is OFF.

·

If the stop light switch assembly is malfunctioning, the engine can be started by pressing and holding the engine 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



OK

7.READ VALUE USING GTS (SHIFT P SIGNAL)

NG

22.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - POWER SOURCE AND BODY GROUND)
7.READ VALUE USING GTS (SHIFT P SIGNAL)
a.

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 engine 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



OK

8.READ VALUE USING GTS (POWER SUPPLY CONDITION)

NG

20.CHECK SHIFT LOCK CONTROL UNIT ASSEMBLY
8.READ VALUE USING GTS (POWER SUPPLY CONDITION)
a.

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 engine 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 engine switch.


OK:

The GTS display changes correctly in response to the engine switch operation.



Result:
Proceed to
OK
NG



OK

9.INSPECT ECM (PPOS TERMINAL)

NG

19.CHECK SECURITY INDICATOR LIGHT (IMMOBILISER FUNCTION UNSET)
9.INSPECT ECM (PPOS TERMINAL)
a.

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

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(A15)Location & Routing

Click Connector(A15)Instrument Panel>Engine Room Main Wire>Smart Key ECU Assembly

A15-3 (STA) - Body ground Shift lever in P/N → Shift lever not in P/N 11 to 14 V → 1.0 V or less



Result:
Proceed to
OK
NG



OK

10.INSPECT ST NO. 1 RELAY

NG

18.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ECM)
10.INSPECT ST NO. 1 RELAY

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (STARTING)>RELAY>INSPECTION

Result:
Proceed to
OK
NG



OK

11.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ST NO. 1 RELAY)

NG

REPLACE ST NO. 1 RELAY

11.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ST NO. 1 RELAY)
a.
C378519C02
0.156,0.125 0.521,0.469 0.365,0.344 10 false *1
*1 No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly
(ST NO. 1 Relay Holder)


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

Standard Voltage:
Tester Connection Condition Specified Condition
No. 1 engine room relay block and No. 1 junction block assembly ST NO. 1 relay terminal 2 - Body ground Engine switch pressed and held with brake pedal depressed (starter on) → Approximately 1 second after engine switch released (starter off) 6 V or higher* → 1.0 V or less


HINT:

*: While the engine is cranking, the auxiliary battery voltage may drop to approximately 6 V.



Result:
Proceed to
OK
NG



OK

12.CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - AUXILIARY BATTERY AND GROUND)

NG

15.INSPECT ENGINE STOP AND START ECU
12.CHECK HARNESS AND CONNECTOR (ST NO. 1 RELAY - AUXILIARY BATTERY AND GROUND)
a.
C378519C02
0.156,0.125 0.521,0.469 0.365,0.344 10 false *1
*1 No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly
(ST NO. 1 Relay Holder)


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

Standard Resistance:
Tester Connection Condition Specified Condition
No. 1 engine room relay block and No. 1 junction block assembly ST NO. 1 relay terminal 1 - Body ground Always Below 1 Ω



b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
No. 1 engine room relay block and No. 1 junction block assembly ST NO. 1 relay terminal 5 - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

13.CHECK HARNESS AND CONNECTOR (STARTER ASSEMBLY - ST NO. 1 RELAY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

13.CHECK HARNESS AND CONNECTOR (STARTER ASSEMBLY - ST NO. 1 RELAY)
a.

Disconnect the C80 starter assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(C80)Location & Routing

Click Connector(C80)Engine Compartment>Engine Wire>Starter Assembly

No. 1 engine room relay block and No. 1 junction block assembly ST NO. 1 relay terminal 3 - C80-2 (ST) Always Below 1 Ω
No. 1 engine room relay block and No. 1 junction block assembly ST NO. 1 relay terminal 3 or C80-2 (ST) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

14.CHECK HARNESS AND CONNECTOR (STARTER ASSEMBLY - AUXILIARY BATTERY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

14.CHECK HARNESS AND CONNECTOR (STARTER ASSEMBLY - AUXILIARY BATTERY)
a.

Disconnect the B9 starter assembly connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(B9)Location & Routing

Click Connector(B9)Engine Compartment>No. 4 Engine Room Wire / No. 2 Engine Wire / No. 3 Engine Wire / No. 5 Engine Wire / No. 6 Engine Wire / Sensor Wire>Starter Assembly

B9-1 (B) - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE STARTER ASSEMBLY

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (STARTING)>STARTER (for 1.7 kW Type)>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

15.INSPECT ENGINE STOP AND START ECU
a.

Disconnect the A106 engine stop and start ECU connector.


b.
C378519C02
0.156,0.125 0.521,0.469 0.365,0.344 10 false *1
*1 No. 1 Engine Room Relay Block and No. 1 Junction Block Assembly
(ST NO. 1 Relay Holder)


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

Standard Voltage:
Tester Connection Condition Specified Condition
No. 1 engine room relay block and No. 1 junction block assembly ST NO. 1 relay terminal 2 - Body ground Engine switch pressed and held with brake pedal depressed (starter on) → Approximately 1 second after engine switch released (starter off) 6 V or higher* → 1.0 V or less


HINT:

*: While the engine is cranking, the auxiliary battery voltage may drop to approximately 6 V.



Result:
Proceed to
OK
NG



OK

REPLACE ENGINE STOP AND START ECU

Click hereEngine / Hybrid System>STOP AND START>ENGINE STOP AND START ECU>REMOVAL


NG

16.INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
16.INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
a.

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

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(A15)Location & Routing

Click Connector(A15)Instrument Panel>Engine Room Main Wire>Smart Key ECU Assembly

A15-10 (STAR) - Body ground Engine switch pressed and held with brake pedal depressed (starter on) → Approximately 1 second after engine switch released (starter off) 6 V or higher* → 1.0 V or less


HINT:

*: While the engine is cranking, the auxiliary battery voltage may drop to approximately 6 V.



Result:
Proceed to
OK
NG



OK

17.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ST NO. 1 RELAY)

NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

17.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ST NO. 1 RELAY)
a.

Disconnect the A15 certification ECU (smart key ECU assembly) connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A15,A109,A106)Location & Routing

Click Connector(A15)Instrument Panel>Engine Room Main Wire>Smart Key ECU Assembly

Click Connector(A109)Engine Compartment>Engine Room Main Wire / Transmission Wire>ECM

Click Connector(A106)Instrument Panel>Engine Room Main Wire>Engine Stop and Start ECU

A15-10 (STAR) - No. 1 engine room relay block and No. 1 junction block assembly ST NO. 1 relay terminal 2 Always Below 1 Ω
A15-10 (STAR) or No. 1 engine room relay block and No. 1 junction block assembly ST NO. 1 relay terminal 2 - Other terminals and body ground Always 10 kΩ or higher
A15-10 (STAR) - A109-30 (STA) Always Below 1 Ω
A15-10 (STAR) or A109-30 (STA) - Other terminals and body ground Always 10 kΩ or higher
A15-10 (STAR) - A106-21 (STA) Always Below 1 Ω
A15-10 (STAR) or A106-21 (STA) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

18.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ECM)
a.

Disconnect the A15 certification ECU (smart key ECU assembly) connector.


b.

Disconnect the A109 ECM connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A15,A109)Location & Routing

Click Connector(A15)Instrument Panel>Engine Room Main Wire>Smart Key ECU Assembly

Click Connector(A109)Engine Compartment>Engine Room Main Wire / Transmission Wire>ECM

A15-3 (STA) - A109-81 (PPOS) Always Below 1 Ω
A15-3 (STA) or A109-81 (PPOS) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE ECM

Click hereEngine / Hybrid System>M20C-FKS, M20D-FKS (ENGINE CONTROL)>ECM>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

19.CHECK SECURITY INDICATOR LIGHT (IMMOBILISER FUNCTION UNSET)
a.

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


b.

Move the shift lever to P.


c.

Press the engine 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



OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

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, Gasoline Model)>Immobiliser System does not Operate Properly


20.CHECK SHIFT LOCK CONTROL UNIT ASSEMBLY
a.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E52)Location & Routing

Click Connector(E52)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Smart Key ECU Assembly

E52-14 (P) - Body ground Shift lever in P → Shift lever not in P 30 kΩ or higher → Below 200 Ω



Result:
Proceed to
OK
NG



OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

NG

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

Disconnect the E52 certification ECU (smart key ECU assembly) connector.


b.

Disconnect the E25 shift lock control unit assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(E52,E25)Location & Routing

Click Connector(E52)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Smart Key ECU Assembly

Click Connector(E25)Instrument Panel>Instrument Panel Wire / Radio Wiring Sub-Assy / Telephone Computer Wire>Shift Lock Solenoid (Shift Lock Control Unit Assembly)

E52-14 (P) - E25-3 (P2) Always Below 1 Ω
E52-14 (P) or E25-3 (P2) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY

Click hereDrivetrain>K120 / K120F / K121 / K121F (CVT)>SHIFT LEVER>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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

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

Standard Voltage:
Tester Connection Condition Specified Condition

Click Location & Routing(A43)Location & Routing

Click Connector(A43)Instrument Panel>Engine Room Main Wire>Stop Light Switch Assembly

A43-7 (B) - Body ground Always 11 to 14 V


Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A43)Location & Routing

Click Connector(A43)Instrument Panel>Engine Room Main Wire>Stop Light Switch Assembly

A43-2 (GND) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

23.INSPECT STOP LIGHT SWITCH ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

23.INSPECT STOP LIGHT SWITCH ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>STOP LIGHT SWITCH>ON-VEHICLE INSPECTION

Result:
Proceed to
OK
NG



OK

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

NG

REPLACE STOP LIGHT SWITCH ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>STOP LIGHT SWITCH>REMOVAL


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

Disconnect the A15 certification ECU (smart key ECU assembly) connector.


b.

Disconnect the A43 stop light switch assembly connector.


c.

Disconnect the A109 ECM connector.


d.

Disconnect the A40 skid control ECU (brake actuator assembly) connector.


e.

Disconnect the E25 shift lock control unit assembly connector.


f.

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

Standard Resistance:
Tester Connection Condition Specified Condition

Click Location & Routing(A15,A43)Location & Routing

Click Connector(A15)Instrument Panel>Engine Room Main Wire>Smart Key ECU Assembly

Click Connector(A43)Instrument Panel>Engine Room Main Wire>Stop Light Switch Assembly

A15-21 (STP1) - A43-3 (L) Always Below 1 Ω
A15-21 (STP1) or A43-3 (L) - 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