RM35X0E _56 Audio / Visual / Telematics _078379 NAVIGATION / MULTI INFO DISPLAY _0380999 NAVIGATION SYSTEM C

NAVIGATION / MULTI INFO DISPLAY NAVIGATION SYSTEM B157D DAB Tuner Antenna Disconnected

DESCRIPTION

This DTC is stored when a malfunction occurs in the DAB tuner antenna which is connected to the radio and display receiver assembly.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B157D	DAB Tuner Antenna Disconnected	The DAB tuner antenna is not connected	· Windshield glass (DAB antenna) · No. 2 Antenna cord sub-assembly · Antenna cord sub-assembly · Radio and display receiver assembly

WIRING DIAGRAM

5.438,2.698 6.656,3.167 1.219,0.469 10 false Radio and Display Receiver Assembly 5.156,0.771 6.375,1.24 1.219,0.469 10 false DAB 5.177,1.51 6.396,1.979 1.219,0.469 10 false DAB 2.625,0.771 3.844,1.24 1.219,0.469 10 false A 2.604,1.51 3.823,1.979 1.219,0.469 10 false A 3.938,0.771 5.156,1.24 1.219,0.469 10 false B 3.958,1.521 5.177,1.99 1.219,0.469 10 false B 4.208,2.521 5.104,2.958 0.896,0.438 10 false Antenna Cord Sub-assembly 2.719,2.5 3.938,2.906 1.219,0.406 10 false No. 2 Antenna Cord Sub-assembly 1.5,2.156 2.604,2.698 1.104,0.542 10 false Windshield Glass (DAB Antenna) 2.625,0.563 3.844,1.031 1.219,0.469 10 false 1 2.583,1.292 3.802,1.76 1.219,0.469 10 false 1a 3.927,1.302 5.146,1.771 1.219,0.469 10 false 3a 3.948,0.573 5.167,1.042 1.219,0.469 10 false 3 5.25,0.563 6.469,1.031 1.219,0.469 10 false 1 5.229,1.302 6.448,1.771 1.219,0.469 10 false 1a 5.573,0.771 6.792,1.24 1.219,0.469 10 false DAB 5.583,1.521 6.802,1.99 1.219,0.469 10 false GND

CAUTION / NOTICE / HINT

NOTICE:: When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:; ·

A communication malfunction DTC may be stored.

·

The radio and display receiver assembly may not operate normally.

HINT:: Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.; Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>PRECAUTION201902,201906,_56,_078379,_0380999,RM100000001FWS5,201906,202107,_56,_078379,_0380999,RM100000001IFZS,202107,999999,_56,_078379,_0380999,RM100000001Y0KV,

PROCEDURE

1.CHECK DTC

Clear the DTCs.

Click hereAudio / Visual / Telematics>NAVIGATION / MULTI INFO DISPLAY>NAVIGATION SYSTEM>DTC CHECK / CLEAR201902,201906,_56,_078379,_0380999,RM100000001FWSD,201906,202006,_56,_078379,_0380999,RM100000001IG0D,202006,999999,_56,_078379,_0380999,RM100000001P0XH,

Body Electrical > Navigation System > Clear DTCs: 50002 212

Check for DTCs.

Body Electrical > Navigation System > Trouble Codes: 50001 212

OK:: No DTCs are output.

Result:

Proceed to
OK
NG

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING201902,999999,_V1,_078841,_0386803,RM100000001GTWY,

2.CHECK OPTIONAL COMPONENTS

Check if any optional components that may decrease reception capacity, such as a telephone antenna, are installed.

OK:: Optional components are installed.

NOTICE:: Do not remove optional components without permission of the customer.

Result:

Proceed to
OK
NG

REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

3.CHECK WINDSHIELD GLASS (DAB ANTENNA)

Check the windshield glass (DAB antenna).

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>WINDOW GLASS ANTENNA WIRE>ON-VEHICLE INSPECTION201902,999999,_56,_078377,_0380043,RM100000001FSEM,

Result:

Proceed to
OK
NG

4.CHECK ANTENNA CORD SUB-ASSEMBLY

REPAIR WINDSHIELD GLASS (DAB ANTENNA)

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>WINDOW GLASS ANTENNA WIRE>REPAIR201902,999999,_56,_078377,_0380043,RM100000001FSEN,

4.CHECK ANTENNA CORD SUB-ASSEMBLY

0.667,0.635 1.083,0.875 0.417,0.24 1.479,1.646 1.896,1.885 0.417,0.24 1.844,0.896 2.156,1.396 2.156,1.396 2.385,1.396 true 1.906,2.885 1.833,3.271 1.833,3.271 1.604,3.271 true 1.01,0.292 1.208,0.292 1.208,0.292 1.677,0.896 true 0.74,0.688 1.115,0.948 0.375,0.26 10 false DAB 0.219,0.219 0.531,0.417 0.313,0.198 10 false *a 1.646,1.688 1.958,1.885 0.313,0.198 10 false B 0.208,1.479 0.521,1.677 0.313,0.198 10 false *b 2.427,1.302 2.74,1.5 0.313,0.198 10 false 1a 1.396,3.177 1.708,3.375 0.313,0.198 10 false 3a 2.604,1.313 3.125,1.552 0.521,0.24 10 false (GND) 0.667,0.219 1.188,0.458 0.521,0.24 10 false DAB

*a	Front view of wire harness connector (to Radio and Display Receiver Assembly)
*b	Front view of wire harness connector (to No. 2 Antenna Cord Sub-assembly)

Disconnect the antenna connector from the radio and display receiver assembly.

Disconnect the antenna connector from the No. 2 antenna cord sub-assembly.

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
DAB-1 (DAB) - B-3	Always	Below 1 Ω
DAB-1a (GND) - B-3a	Always	Below 1 Ω
DAB-1 (DAB) or B-3 - Body ground	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

5.CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY

REPLACE ANTENNA CORD SUB-ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO ANTENNA CORD (for Instrument Panel Side)>REMOVAL201902,201906,_56,_078377,_0380028,RM100000001FRTS,201906,202107,_56,_078377,_0380028,RM100000001IHO8,202107,999999,_56,_078377,_0380028,RM100000001WMH7,

5.CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY

1.552,0.125 1.896,0.365 0.344,0.24 1.542,1.813 1.885,2.052 0.344,0.24 1.698,1.271 1.938,1.635 1.938,1.635 2.115,1.635 true 1.854,2.781 2.25,2.427 2.25,2.427 2.427,2.427 true 0.271,0.25 0.5,0.448 0.229,0.198 10 false *a 0.281,1.906 0.51,2.104 0.229,0.198 10 false *b 1.667,0.167 1.802,0.344 0.135,0.177 10 false B 1.656,1.844 1.792,2.021 0.135,0.177 10 false A 2.177,1.552 2.406,1.75 0.229,0.198 10 false 3a 2.49,2.333 2.719,2.531 0.229,0.198 10 false 1a

*a	Front view of wire harness connector (to Antenna Cord Sub-assembly)
*b	Front view of wire harness connector (to Windshield Glass [DAB Antenna])

Disconnect the antenna connector from the antenna cord sub-assembly.

Disconnect the antenna connector from the windshield glass (DAB Antenna).

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
B-3 - A-1	Always	Below 1 Ω
B-3a - A-1a	Always	Below 1 Ω
B-3 or A-1 - Body ground	Always	10 kΩ or higher

Result:

Proceed to
OK
NG

6.CHECK WINDSHIELD GLASS (DAB ANTENNA)

REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO ANTENNA CORD (for Roof Side)>REMOVAL201902,201906,_56,_078377,_0380030,RM100000001FZE7,201906,202107,_56,_078377,_0380030,RM100000001IHIG,202107,999999,_56,_078377,_0380030,RM100000001WMGZ,

6.CHECK WINDSHIELD GLASS (DAB ANTENNA)

Replace the windshield glass (DAB antenna).

Click hereVehicle Exterior>WINDOW / GLASS>WINDSHIELD GLASS>REMOVAL201902,201906,_59,_079318,_0384710,RM100000001GI0N,201906,999999,_59,_079318,_0384710,RM100000001IUII,

Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs: 50002 212

Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes: 50001 212

OK:: No DTCs are output.

Result:

Proceed to
OK
NG

END (WINDSHIELD GLASS [DAB ANTENNA] IS DEFECTIVE)

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO RECEIVER>REMOVAL201902,202006,_56,_078377,_0380009,RM100000001FRAH,202006,999999,_56,_078377,_0380009,RM100000001P9CA,