Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018FBE
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: B15C0,B15C1; GPS Antenna Connection Malfunction(short); 2018 - 2020 MY Sienna [11/2017 -        ]

DTC

B15C0

GPS Antenna Connection Malfunction(short)

DTC

B15C1

GPS Antenna Connection Malfunction(break)

DESCRIPTION

These DTCs are stored when a malfunction occurs in the navigation antenna assembly.

DTC Code

DTC Code

DTC Detection Condition

Trouble Area

B15C0

Navigation antenna malfunction

  • Antenna cord sub-assembly (for navigation antenna)
  • Radio and display receiver assembly

B15C1

Navigation antenna power source malfunction

  • Antenna cord sub-assembly (for navigation antenna)
  • Radio and display receiver assembly

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.

    Click here 2018 - 2020 MY Sienna [11/2017 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: PRECAUTION

  • 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 occurs:
    • A communication malfunction DTC may be stored.
    • The radio and display receiver assembly may not operate normally.
  • Check that the antenna cord sub-assembly (for Navigation Antenna) is properly installed and does not have any sharp bends, pinching or loose connections before performing following procedure.

    Click here 2018 - 2020 MY Sienna [11/2017 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DTC CHECK / CLEAR

(b) Recheck for DTCs and check that no DTCs are output.

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: DTC CHECK / CLEAR

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

INSPECT NAVIGATION ANTENNA ASSEMBLY

(a) Remove the antenna cord sub-assembly (for navigation antenna).

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION ANTENNA: REMOVAL

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

GP-1 - 1a

Always

50 to 500 Ω

*a

Front view of wire harness connector

(to Radio Receiver Assembly)

OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPLACE ANTENNA CORD SUB-ASSEMBLY (for Navigation Antenna)