RM38T0EC _58 Vehicle Interior _115230 THEFT DETERRENT / KEYLESS ENTRY _0606511 SMART ENTRY AND START SYSTEM(for Entry Function, HEV Model) C

THEFT DETERRENT / KEYLESS ENTRY  SMART ENTRY AND START SYSTEM(for Entry Function, HEV 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 RH (electrical key antenna) at intervals of 0.25 seconds. For the front door outside handle assembly RH (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 RH (electrical key antenna) (between terminals CLG2 and ANT1, or terminals CG2B and ANT2).

DTC No. Detection Item INF Code DTC Detection Condition 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

E517954E02
1.323,0.76 1.719,0.938 0.396,0.177 10 false ANT1 1.313,1.917 1.708,2.083 0.396,0.167 10 false ANT2 5.052,2.542 5.865,2.76 0.813,0.219 10 false I222 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 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 5.031,0.74 5.25,0.917 0.219,0.177 10 false 10 5.094,1.885 5.313,2.063 0.219,0.177 10 false 9 0.51,2.74 2.177,3.313 1.667,0.573 10 false Front Door Outside Handle Assembly RH 0.51,2.552 0.823,2.719 0.313,0.167 10 false K19 5.052,2.719 6.594,3.375 1.542,0.656 10 false Certification ECU (Smart Key ECU Assembly) 6.479,1.896 6.698,2.073 0.219,0.177 10 false 29 0.094,0.115 4.313,0.354 4.219,0.24 12 false w/o Digital Key System:

E517954E04
1.323,0.771 1.719,0.948 0.396,0.177 10 false ANT1 1.313,1.917 1.708,2.083 0.396,0.167 10 false ANT2 5.083,2.573 6.208,2.844 1.125,0.271 10 false I222 5.302,0.76 5.844,0.969 0.542,0.208 10 false CLG2 5.292,1.896 5.896,2.094 0.604,0.198 10 false CG2B 5.844,1.375 6.052,1.542 0.208,0.167 10 false IC 6.26,2.01 6.417,2.177 0.156,0.167 10 false E 1.802,0.792 1.927,0.958 0.125,0.167 10 false 4 1.76,1.917 1.885,2.083 0.125,0.167 10 false 6 5.042,0.75 5.26,0.927 0.219,0.177 10 false 10 5.094,1.896 5.313,2.073 0.219,0.177 10 false 9 0.469,2.698 2.135,3.156 1.667,0.458 10 false Front Door Outside Handle Assembly RH 0.469,2.542 0.781,2.708 0.313,0.167 10 false K23 5.083,2.76 6.615,3.438 1.531,0.677 10 false Certification ECU (Smart Key ECU Assembly) 6.479,1.896 6.698,2.073 0.219,0.177 10 false 29 0.146,0.125 2.417,0.438 2.271,0.313 12 false w/ Digital Key System:

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 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, HEV Model)>HOW TO PROCEED WITH TROUBLESHOOTING

·

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
a.

Check that the connectors are properly connected to the certification ECU (smart key ECU assembly) and front door outside handle assembly RH.

OK:

Connectors are properly connected.



Result:
Proceed to
OK
NG



OK

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

NG

CONNECT CONNECTORS PROPERLY

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

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


b.

Disconnect the K19*1 or K23*2 front door outside handle assembly RH connector.

*1: w/o Digital Key System

*2: w/ Digital Key System



c.

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

Standard Resistance:
w/o Digital Key System
Tester Connection Condition Specified Condition
I222-10 (CLG2) - K19-4 (ANT1) Always Below 1 Ω
I222-9 (CG2B) - K19-6 (ANT2) Always Below 1 Ω


Standard Resistance:
w/ Digital Key System
Tester Connection Condition Specified Condition
I222-10 (CLG2) - K23-4 (ANT1) Always Below 1 Ω
I222-9 (CG2B) - K23-6 (ANT2) Always Below 1 Ω


Result:
Proceed to
OK
NG



d.

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



OK

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

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (OUTPUT TO FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH)
B574612C54
4.76,0.354 5.156,0.583 0.396,0.229 5.833,1.979 5.292,1.083 true 4.563,1.927 5.198,1.094 true 4.063,1.938 4.583,1.167 true 0.25,0.24 0.563,0.438 0.313,0.198 10 false *a 4.844,0.385 5.156,0.583 0.313,0.198 10 false I222 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 0.75,3.365 1.281,3.615 0.531,0.25 10 false GND 3.833,3.354 4.365,3.604 0.531,0.25 10 false GND 3.833,5.333 4.365,5.583 0.531,0.25 10 false GND 0.76,5.333 1.292,5.583 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 - -


a.

Using an oscilloscope, check the waveform.

OK:
Tester Connection Condition Tool Setting Specified Condition
I222-10 (CLG2) - I222-29 (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)
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)
I222-9 (CG2B) - I222-29 (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)
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:

*: For details about the entry function detection area, refer to Operation Check.

Click hereVehicle Interior>THEFT DETERRENT / KEYLESS ENTRY>SMART ENTRY AND START SYSTEM (for Entry Function, HEV Model)>OPERATION CHECK



Result:
Proceed to
OK
NG



OK

REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH

Click hereVehicle Exterior>DOOR / HATCH>FRONT DOOR>DISASSEMBLY


NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)