Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: GNSS Antenna Circuit Short to Ground (B154711,B154713)

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

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

Navigation System

A

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

PROCEDURE

1.

INSPECT NAVIGATION ANTENNA ASSEMBLY

Click here

NG

REPLACE NAVIGATION ANTENNA ASSEMBLY

OK

2.

INSPECT ANTENNA CORD SUB-ASSEMBLY

(a) Disconnect the navigation antenna assembly connector.

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

(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 - Body ground

Always

10 kΩ or higher

A-1a - Body ground

Always

10 kΩ or higher

Result:

Proceed to

OK

NG

*a

Component without harness connected

(to Navigation Antenna Assembly)

*b

Component without harness connected

(to Radio and Display Receiver Assembly)

OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPLACE ANTENNA CORD SUB-ASSEMBLY

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