Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM100000001S3YQ
Model Year Start: 2021 Model: Camry Prod Date Range: [10/2020 -           ]
Title: NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: B15C0,B15C1; GPS Antenna Connection Malfunction(short); 2021 - 2024 MY Camry [10/2020 -        ]

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 No.

Detection Item

DTC Detection Condition

Trouble Area

B15C0

GPS Antenna Connection Malfunction(short)

Navigation antenna malfunction

  • Navigation antenna assembly
  • Antenna cord sub-assembly (for Navigation Antenna)
  • Antenna cord sub-assembly (for Front Side)
  • Navigation ECU

B15C1

GPS Antenna Connection Malfunction(break)

Navigation antenna power source malfunction

  • Navigation antenna assembly
  • Antenna cord sub-assembly (for navigation antenna)
  • Antenna cord sub-assembly (for Front Side)
  • Navigation ECU

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the navigation ECU, always replace it with a new one. If a navigation ECU which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC may be stored.
    • The navigation ECU may not operate normally.

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

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

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

USE SIMULATION METHOD TO CHECK 2021 MY Camry [10/2020 - 08/2021]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING 2022 - 2024 MY Camry [08/2021 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

NG

2.

INSPECT ANTENNA CORD SUB-ASSEMBLY (for Front Side)

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

Click here 2021 - 2024 MY Camry [10/2020 -        ]; NAVIGATION / MULTI INFO DISPLAY: ANTENNA CORD: REMOVAL

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A-3 - B-3

Always

Below 1 Ω

A-3a - B-3a

Always

Below 1 Ω

A-3 or B-3 - Body ground

Always

10 kΩ or higher

*a

Component without harness connected

(Antenna Cord Sub-assembly (for Front Side))

*a

Component without harness connected

(Antenna Cord Sub-assembly (for Front Side))

NG

REPLACE ANTENNA CORD SUB-ASSEMBLY (for Front Side)

OK

3.

INSPECT ANTENNA CORD SUB-ASSEMBLY (for Navigation Antenna)

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

Click here 2021 - 2024 MY Camry [10/2020 -        ]; NAVIGATION / MULTI INFO DISPLAY: ANTENNA CORD: REMOVAL

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C-3 - D-1

Always

Below 1 Ω

C-3a - D-1a

Always

Below 1 Ω

C-3 or D-1 - Body ground

Always

10 kΩ or higher

*a

Component without harness connected

(Antenna Cord Sub-assembly (for Navigation Antenna))

*a

Component without harness connected

(Antenna Cord Sub-assembly (for Navigation Antenna))

NG

REPLACE ANTENNA CORD SUB-ASSEMBLY (for Navigation Antenna)

OK

4.

INSPECT NAVIGATION ANTENNA ASSEMBLY

(a) Remove the navigation antenna assembly.

Click here 2021 - 2024 MY Camry [10/2020 -        ]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION ANTENNA: REMOVAL

(b) Inspect the navigation antenna assembly.

Click here 2020 - 2024 MY Camry [09/2019 -        ]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION ANTENNA: INSPECTION

OK

REPLACE NAVIGATION ECU

NG

REPLACE NAVIGATION ANTENNA ASSEMBLY