Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Voice Recognition Microphone2 Circuit Open (B154913)

DESCRIPTION

The telephone microphone assembly RH is connected to the radio and display receiver assembly via voice recognition microphone 2 signal detection line.

This DTC is stored when the radio and display receiver assembly detects disconnection of telephone microphone assembly RH.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

Priority

B154913

Voice Recognition Microphone2 Circuit Open

Voice recognition microphone 2 terminal (SNS2) disconnected

(2 trip detection logic)

  • Telephone microphone assembly RH
  • Radio and display receiver assembly
  • Harness or connector

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.

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY RH)

(a) Disconnect the I254 radio and display receiver assembly connector.

(b) Disconnect the T34 telephone microphone assembly RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

T34-5 (SNS2) - I254-21 (SNS2)

Always

Below 1 Ω

T34-4 (MO2-) - I254-18 (MI2-)

Always

Below 1 Ω

T34-5 (SNS2) - Body ground

Always

10 kΩ or higher

T34-4 (MO2-) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

INSPECT RADIO & DISPLAY RECEIVER ASSEMBLY (MI2-)

(a) With the radio and display receiver assembly connectors connected, disconnect the T34 telephone microphone assembly RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

T34-4 (MO2-) - Body ground

Always

Below 1 Ω

NG

REPLACE RADIO & DISPLAY RECEIVER ASSEMBLY

OK

3.

INSPECT TELEPHONE MICROPHONE ASSEMBLY RH (SNS2, MO2-)

(a) Remove the telephone microphone assembly RH.

*a

Component without harness connected

(Telephone microphone assembly RH)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

5 (SNS2) - 4 (MO2-)

Always

Below 1 Ω

OK

REPLACE RADIO & DISPLAY RECEIVER ASSEMBLY

NG

REPLACE TELEPHONE MICROPHONE ASSEMBLY RH

    READ NEXT:

     HD-RADIO Tuner Component Internal Failure (B155196,B158D87,B15A096,B15AD96,B15B396,B15B796,B15BA96)

    DESCRIPTION These DTCs are stored when a malfunction occurs in the radio and display receiver assembly. DTC No. Detection Item DTC Detection Condition T

     Voice Recognition Microphone1 Circuit Open (B157913)

    DESCRIPTION The telephone microphone assembly LH is connected to the radio and display receiver assembly via voice recognition microphone 1 signal detection line. This DTC is stored when the rad

     Stereo Component Amplifier Missing Message (B15A387)

    DESCRIPTION This DTC is stored when the radio and display receiver assembly detects that the stereo component amplifier assembly has disconnected. DTC No. Detection Item

    SEE MORE:

     Hybrid/EV Battery System Discharge Time Too Long (P0C7600)

    DTC SUMMARY MALFUNCTION DESCRIPTION When the ignition switch is turned from ON (READY) to off, the hybrid vehicle control ECU detects that the high-voltage capacitor inside the inverter with converter assembly is not discharged. The cause of this malfunction may be one of the following: Inverter

     Body

    BODY TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY (a) If necessary, tighten the bolts and nuts on the chassis parts listed below. Front axle and suspension Drivetrain Rear axle and suspension Brake system Engine mounts Other chassis parts (b) If necessary, tighten the bolts an

    © 2020-2024 Copyright www.tcorollacross.com