Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026K8D
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Single Knob Type): B154711,B154713; GNSS Antenna Circuit Short to Ground; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]

DTC

B154711

GNSS Antenna Circuit Short to Ground

DTC

B154713

GNSS Antenna Circuit Open

DESCRIPTION

These DTCs are stored when the radio and display receiver assembly detects an open or short in GNSS antenna assembly.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

Priority

B154711

GNSS Antenna Circuit Short to Ground

Short in GNSS antenna assembly

(2 trip detection logic)

  • Navigation antenna assembly
  • Radio and display receiver assembly
  • Antenna cord sub-assembly*1
  • No. 2 Antenna cord sub-assembly*2

Navigation System

A

B154713

GNSS Antenna Circuit Open

Open in GNSS antenna assembly

(2 trip detection logic)

  • Navigation antenna assembly
  • Radio and display receiver assembly
  • Antenna cord sub-assembly*1
  • No. 2 Antenna cord sub-assembly*2

Navigation System

A

  • *1: for Sedan Model
  • *2: for Hatchback Model

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.

Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Single Knob Type): PRECAUTION

PROCEDURE

1.

INSPECT NAVIGATION ANTENNA ASSEMBLY

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION ANTENNA: INSPECTION 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION ANTENNA: INSPECTION

NG

REPLACE NAVIGATION ANTENNA ASSEMBLY 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION ANTENNA: REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION ANTENNA: REMOVAL

OK

2.

CHECK MODEL

(a) Choose the model to be inspected.

Result

Proceed to

for Hatchback Model

A

for Sedan Model

B

B

GO TO STEP 4

A

3.

INSPECT NO. 2 ANTENNA CORD SUB-ASSEMBLY

(a) Disconnect the navigation antenna assembly connector.

*a

Front view of No. 2 antenna cord sub-assembly connector

(to Navigation Antenna Assembly)

(b) Disconnect the radio and display receiver assembly connector.

*a

Front view of No. 2 antenna cord sub-assembly connector

(to Radio and Display Receiver assembly)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D-3 - A-1

Always

Below 1 Ω

D-3a - A-1a

Always

Below 1 Ω

D-3a or A-1a - Body ground

Always

10 kΩ or higher

OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

NG

REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; AUDIO / VIDEO: RADIO ANTENNA CORD (for Hatchback): REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; AUDIO / VIDEO: RADIO ANTENNA CORD (for Hatchback): REMOVAL

4.

INSPECT ANTENNA CORD SUB-ASSEMBLY

(a) Disconnect the navigation antenna assembly connector.

*a

Front view of antenna cord sub-assembly connector

(to Navigation Antenna Assembly)

(b) Disconnect the radio and display receiver assembly connector.

*a

Front view of antenna cord sub-assembly connector

(to Radio and Display Receiver assembly)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D-3 - A-1

Always

Below 1 Ω

D-3a - A-1a

Always

Below 1 Ω

D-3a or A-1a - Body ground

Always

10 kΩ or higher

OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

NG

REPLACE ANTENNA CORD SUB-ASSEMBLY 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; AUDIO / VIDEO: RADIO ANTENNA CORD (for Sedan): REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; AUDIO / VIDEO: RADIO ANTENNA CORD (for Sedan): REMOVAL