RM38N0EC _58 Vehicle Interior _111832 THEFT DETERRENT / KEYLESS ENTRY _0509383 SMART ENTRY AND START SYSTEM(for Entry Function, Gasoline Model) C

THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Entry Function, Gasoline Model) B27A213 Front Passenger Side Electrical Antenna Circuit Open

DESCRIPTION

The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the front door outside handle assembly (for front passenger door) (electrical key antenna) at intervals of 0.25 seconds. For the front door outside handle assembly (for front passenger door) (electrical key antenna) to detect when the electrical key transmitter sub-assembly is brought close to the vehicle, a signal requesting a response from the electrical key transmitter sub-assembly is transmitted within approximately 1 m (3.28 ft.) of the front passenger door at intervals of 0.25 seconds. DTC B27A213 is stored by the certification ECU (smart key ECU assembly) when an open is detected between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for front passenger door) (electrical key antenna) (between terminals CLG2 and ANT1, or terminals CG2B and ANT2).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B27A213	Front Passenger Side Electrical Antenna Circuit Open	An open is detected in the circuit between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for front passenger door) (CLG2 - ANT1, CG2B - ANT2) (This is detected by the malfunction detection circuit in the certification ECU (smart key ECU assembly)) (1 trip detection logic*).	· Certification ECU (smart key ECU assembly) · Front door outside handle assembly (for front passenger door) · 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
Entry lock/unlock operation cannot be performed for front passenger door	-

Related Data List and Active Test
DTC No.	Data List and Active Test
B27A213	Key diagnostic mode can be used to perform troubleshooting

WIRING DIAGRAM

1.208,0.76 1.823,0.969 0.615,0.208 10 false ANTE2 1.219,1.917 1.854,2.177 0.635,0.26 10 false ANTB2 4.948,0.865 5.615,1.042 0.667,0.177 10 false E52 4.938,2.01 5.75,2.229 0.813,0.219 10 false E52 5.323,0.771 5.719,0.948 0.396,0.177 10 false CLG2 5.323,1.906 5.719,2.083 0.396,0.177 10 false CG2B 5.844,1.375 6.052,1.542 0.208,0.167 10 false IC 6.281,2.01 6.438,2.177 0.156,0.167 10 false E 6.5,2.01 6.823,2.271 0.323,0.26 10 false E52 1.771,0.771 1.896,0.938 0.125,0.167 10 false 4 1.76,1.917 1.885,2.083 0.125,0.167 10 false 6 4.99,0.667 5.208,0.844 0.219,0.177 10 false 10 5.021,1.813 5.24,1.99 0.219,0.177 10 false 9 0.552,2.729 2.854,3.281 2.302,0.552 10 false Front Door Outside Handle Assembly (for front passenger door) 0.563,2.552 0.875,2.719 0.313,0.167 10 false G7 5.01,2.573 6.552,3.229 1.542,0.656 10 false Certification ECU (Smart Key ECU Assembly) 6.542,1.813 6.76,1.99 0.219,0.177 10 false 29

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

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, Gasoline Model)>HOW TO PROCEED WITH TROUBLESHOOTING202111,999999,_58,_111832,_0509383,RM10000000204X8,

·

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 front door outside handle assembly (for front passenger door).

OK:: Connectors are properly connected.

Result:

Proceed to
OK
NG

2.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR))

CONNECT CONNECTORS PROPERLY

2.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR))

Pre-procedure1

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

Disconnect the G7 front door outside handle assembly (for front passenger door) connector.

Procedure1

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
Click Location & Routing(E52,G7)Location & Routingewd_type=routing;type=c,c;code=E52,G7 Click Connector(E52)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Smart Key ECU Assemblyewd_type=component;type=c;code=E52;pinno=10,9 Click Connector(G7)Body>Front Door Wire RH / Front Door Wire LH>Electrical Key Antenna (Front Door Outside Handle Assembly RH)ewd_type=component;type=c;code=G7;pinno=4,6
E52-10 (CLG2) - G7-4 (ANTE2)	Always	Below 1 Ω
E52-9 (CG2B) - G7-6 (ANTB2)	Always	Below 1 Ω

Tester Connection

Condition

Specified Condition

Click Location & Routing(E52,G7)Location & Routingewd_type=routing;type=c,c;code=E52,G7

Click Connector(E52)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Smart Key ECU Assemblyewd_type=component;type=c;code=E52;pinno=10,9

Click Connector(G7)Body>Front Door Wire RH / Front Door Wire LH>Electrical Key Antenna (Front Door Outside Handle Assembly RH)ewd_type=component;type=c;code=G7;pinno=4,6

E52-10 (CLG2) - G7-4 (ANTE2)

Always

Below 1 Ω

E52-9 (CG2B) - G7-6 (ANTB2)

Always

Below 1 Ω

Result:

Proceed to
OK
NG

Post-procedure1

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

3.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR))

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR))

4.76,0.354 5.156,0.583 0.396,0.229 5.833,1.969 5.292,1.073 false 4.563,1.927 5.198,1.094 false 4.063,1.938 4.583,1.167 false 0.25,0.24 0.563,0.438 0.313,0.198 10 false *a 4.844,0.406 5.156,0.604 0.313,0.198 10 false E52 0.76,2.604 1.073,2.802 0.313,0.198 10 false *b 4.104,2.583 4.417,2.781 0.313,0.198 10 false *c 4.365,2 4.896,2.25 0.531,0.25 10 false CLG2 5.688,2.01 6.219,2.26 0.531,0.25 10 false CG2B 4,1.969 4.292,2.177 0.292,0.208 10 false E 0.698,3.396 1.229,3.646 0.531,0.25 10 false GND 3.781,3.375 4.313,3.625 0.531,0.25 10 false GND 3.792,5.365 4.323,5.615 0.531,0.25 10 false GND 0.729,5.365 1.26,5.615 0.531,0.25 10 false GND 0.781,4.656 1.094,4.854 0.313,0.198 10 false *d 4.063,4.615 4.375,4.813 0.313,0.198 10 false *e

*a	Component with harness connected (Certification ECU (Smart Key ECU Assembly))	*b	Waveform 1
*c	Waveform 2	*d	Waveform 3
*e	Waveform 4	-	-

Using an oscilloscope, check the waveform.

OK:

Tester Connection	Condition	Tool Setting	Specified Condition
Click Location & Routing(E52)Location & Routingewd_type=routing;type=c;code=E52 Click Connector(E52)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Smart Key ECU Assemblyewd_type=component;type=c;code=E52;pinno=10,29,9
E52-10 (CLG2) - E52-29 (E)	Procedure: 1. Ignition switch off 2. All doors closed 3. Electrical key transmitter sub-assembly not inside vehicle 4. All doors locked through wireless operation (electrical key transmitter sub-assembly brought inside detection area*)	5 V/DIV., 500 ms./DIV.	Pulse generation (See waveform 1)
E52-10 (CLG2) - E52-29 (E)	Procedure: 1. Ignition switch off 2. All doors closed 3. Electrical key transmitter sub-assembly not inside vehicle 4. All doors locked through wireless operation (electrical key transmitter sub-assembly brought outside detection area*)	5 V/DIV., 500 ms./DIV.	Pulse generation (See waveform 2)
E52-9 (CG2B) - E52-29 (E)	Procedure: 1. Ignition switch off 2. All doors closed 3. Electrical key transmitter sub-assembly not inside vehicle 4. All doors locked through wireless operation (electrical key transmitter sub-assembly brought inside detection area*)	5 V/DIV., 500 ms./DIV.	Pulse generation (See waveform 3)
E52-9 (CG2B) - E52-29 (E)	Procedure: 1. Ignition switch off 2. All doors closed 3. Electrical key transmitter sub-assembly not inside vehicle 4. All doors locked through wireless operation (electrical key transmitter sub-assembly brought outside detection area*)	5 V/DIV., 500 ms./DIV.	Pulse generation (See waveform 4)

HINT:: Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, Gasoline Model)>OPERATION CHECK202203,999999,_58,_111832,_0509383,RM1000000022FON,; *: For details about the entry function detection area, refer to Operation Check.

Result:

Proceed to
OK
NG

REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR FRONT PASSENGER DOOR)

Click hereVehicle Exterior>DOOR / HATCH>FRONT DOOR>DISASSEMBLY202303,202406,_59,_111831,_0501457,RM100000002B0QO,202406,999999,_59,_111831,_0501457,RM100000002MT7N,

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)