RM36D0EC _58 Vehicle Interior _083094 THEFT DETERRENT / KEYLESS ENTRY _0403000 SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model) C

THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Start Function, Gasoline Model) B27A613 Rear Floor Electrical Key Oscillator Circuit Open

DESCRIPTION

The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the No. 2 indoor electrical key antenna assembly (rear floor). For the No. 2 indoor electrical key antenna assembly (rear floor) to detect when the electrical key transmitter sub-assembly is in the cabin, the signal from the certification ECU (smart key ECU assembly) requesting a response from the electrical key transmitter sub-assembly is transmitted inside the vehicle. DTC B27A613 is stored by the certification ECU (smart key ECU assembly) when an open is detected between the certification ECU (smart key ECU assembly) and No. 2 indoor electrical key antenna assembly (rear floor) (between terminals CLG6 and ANTE6, or terminals CG6B and CLGB).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B27A613	Rear Floor Electrical Key Oscillator Circuit Open	An open is detected in the circuit between the certification ECU (smart key ECU assembly) and No. 2 indoor electrical key antenna assembly (rear floor) (CLG6 - ANTE6, CG6B - CLGB) (1 trip detection logic*).	· Certification ECU (smart key ECU assembly) · No. 2 indoor electrical key antenna assembly (rear floor) · Wire harness or connector	DTC Output Confirmation Operation: Any time

*: Only output while a malfunction is present.

Vehicle Condition and Fail-safe Operation when Malfunction Detected
Vehicle Condition when Malfunction Detected	Fail-safe Operation when Malfunction Detected
When electrical key transmitter sub-assembly is in rear seat area: · Power source mode does not change when engine switch pressed · Electrical key transmitter sub-assembly locked inside vehicle	-

Related Data List and Active Test
DTC No.	Data List and Active Test
B27A613	Key diagnostic mode can be used to perform troubleshooting

WIRING DIAGRAM

4.927,0.865 5.385,1.063 0.458,0.198 10 false M59 5.813,1.375 6.125,1.573 0.313,0.198 10 false IC 6.24,2.042 6.396,2.24 0.156,0.198 10 false E 1.167,0.75 1.938,0.948 0.771,0.198 10 false ANTE6 1.292,1.906 2.063,2.104 0.771,0.198 10 false CLGB 1.802,0.74 1.958,0.938 0.156,0.198 10 false 1 1.823,1.896 1.979,2.094 0.156,0.198 10 false 2 0.271,2.688 2.469,3.073 2.198,0.385 10 false No. 2 Indoor Electrical Key Antenna Assembly (Rear Floor) 0.271,2.521 0.729,2.719 0.458,0.198 10 false N67 5.073,2.563 6.594,2.948 1.521,0.385 10 false Certification ECU (Smart Key ECU Assembly) 5.313,1.906 6.083,2.104 0.771,0.198 10 false CG6B 5.333,0.74 6.104,0.938 0.771,0.198 10 false CLG6 6.438,2.01 6.896,2.208 0.458,0.198 10 false G170 5.01,0.646 5.167,0.844 0.156,0.198 10 false 1 5,1.802 5.156,2 0.156,0.198 10 false 2 6.521,1.802 6.833,2 0.313,0.198 10 false 29 4.927,2.01 5.385,2.208 0.458,0.198 10 false M59

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 the vehicle type under manual mode and enter the following menus: Body Electrical / Entry&Start. 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)>HOW TO PROCEED WITH TROUBLESHOOTING202409,999999,_58,_083094,_0403000,RM100000002NSSW,

·

Before replacing the certification ECU (smart key ECU assembly), refer to Service Bulletin.

·

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

PROCEDURE

1.CHECK CONNECTOR CONNECTION

Check that the connectors are properly connected to the certification ECU (smart key ECU assembly) and No. 2 indoor electrical key antenna assembly (rear floor).

OK:: Connectors are properly connected.

Result:

Proceed to
OK
NG

2.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR))

CONNECT CONNECTORS PROPERLY

2.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR))

Pre-procedure1

Disconnect the M59 certification ECU (smart key ECU assembly) connector.

Disconnect the N67 No. 2 indoor electrical key antenna assembly (rear floor) connector.

Procedure1

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
M59-1 (CLG6) - N67-1 (ANTE6)	Always	Below 1 Ω
M59-2 (CG6B) - N67-2 (CLGB)	Always	Below 1 Ω

Result:

Proceed to
OK
NG

Post-procedure1

Connect the M59 certification ECU (smart key ECU assembly) connector.

3.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR))

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR))

Using an oscilloscope, check the waveform.

4.76,0.406 5.156,0.677 0.396,0.271 3.406,0.417 3.813,0.667 0.406,0.25 5.375,2.49 5.198,2.49 5.198,2.49 4.583,1.26 true 3.281,2.458 3.51,2.458 3.51,2.458 4.073,1.073 true 2.99,2.302 3.219,2.302 3.219,2.302 3.958,1.083 true 0.156,0.167 0.469,0.323 0.313,0.156 10 false *a 2.438,3.115 2.75,3.271 0.313,0.156 10 false *b 3.104,4.427 3.417,4.583 0.313,0.156 10 false *c 2.354,3.698 3.042,4.042 0.688,0.344 10 false GND 4.208,4.438 4.521,4.594 0.313,0.156 10 false *d 2.583,2.219 3.271,2.563 0.688,0.344 10 false CG6B 2.885,2.396 3.573,2.74 0.688,0.344 10 false CLG6 5.448,2.406 6.135,2.75 0.688,0.344 10 false E 4.802,0.469 5.49,0.813 0.688,0.344 10 false G170 3.469,0.479 4.156,0.823 0.688,0.344 10 false M59

*a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))	*b	Waveform
*c	For 30 seconds after any door closed	*d	After 30 seconds or more have elapsed since any door closed

OK:

Tester Connection	Condition	Tool Setting	Specified Condition
M59-1 (CLG6) - G170-29 (E)	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly not inside vehicle 3. Within 30 seconds of closing any door	5 V/DIV., 500 ms/DIV.	Pulse generation (See waveform 1)
M59-2 (CG6B) - G170-29 (E)	Procedure: 1. Ignition switch off 2. Electrical key transmitter sub-assembly not inside vehicle 3. Within 30 seconds of closing any door	5 V/DIV., 500 ms/DIV.	Pulse generation (See waveform 2)

Result:

Proceed to
OK
NG

REPLACE NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR)

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REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)