Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Telephone Sub Antenna Circuit Short to Ground (B153711,B153713)

Toyota Corolla Cross (2022-2025) Service Manual / Audio & Visual & Telematics / Cellular Communication / Safety Connect System / Telephone Sub Antenna Circuit Short to Ground (B153711,B153713)

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B153711

Telephone Sub Antenna Circuit Short to Ground

Navigation antenna assembly impedance (Ω) is lower than the malfunction threshold for 10 seconds or more when the ignition switch is ON

(Short circuit)
  • DCM (telematics transceiver)
  • Navigation antenna assembly
  • Antenna cord sub-assembly

B153713

Telephone Sub Antenna Circuit Open

Navigation antenna assembly impedance (Ω) is higher than the malfunction threshold for 10 seconds or more when the ignition switch is ON

(Open circuit)
  • DCM (telematics transceiver)
  • Navigation antenna assembly
  • Antenna cord sub-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 Telematics System.

    Click here

  • When replacing the DCM (telematics transceiver), make sure to replace it with a new one.

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Telematics > Clear DTCs
NEXT

2.

CHECK DTC

(a) Turn the ignition switch to ON and wait for 10 seconds or more.

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

Body Electrical > Telematics > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTC B153711 or B153713 is output

B
A

USE SIMULATION METHOD TO CHECK

B

3.

INSPECT NAVIGATION ANTENNA ASSEMBLY

(a) Remove the navigation antenna assembly.

Click here

(b) Inspect the navigation antenna assembly.

Click here

NG

REPLACE NAVIGATION ANTENNA ASSEMBLY

OK

4.

INSPECT ANTENNA CORD SUB-ASSEMBLY

(a) Disconnect the antenna cord sub-assembly from the navigation antenna assembly.

*a

Front view of wire harness connector

(to Navigation Antenna Assembly)

*b

Front view of wire harness connector

(to DCM (Telematics Transceiver))

(b) Disconnect the antenna cord sub-assembly from the DCM (telematics transceiver).

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

A-4 - C-1

Always

Below 1 Ω

A-4a - C-1a

Always

Below 1 Ω

A-4 - Body ground

Always

10 kΩ or higher
NG

REPLACE ANTENNA CORD SUB-ASSEMBLY

OK

5.

REPLACE DCM(TELEMATICS TRANSCEIVER)

(a) Replace the DCM (Telematics Transceiver) with a new one.

HINT:

Click here

NEXT

PERFORM DCM ACTIVATION

    READ NEXT:

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    DESCRIPTION This DTC is stored when the DCM (telematics transceiver) detects a malfunction in the telephone microphone assembly circuit. DTC No. Detection Item DTC

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     Cleaning and protecting the vehicle exterior

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