Toyota CH-R Service Manual: Telematics Transceiver Disconnected (B15DB)

Toyota CH-R Service Manual / Audio / Video / Audio And Visual System(for Radio And Display Type) / Telematics Transceiver Disconnected (B15DB)

DESCRIPTION

If the radio and display receiver assembly cannot detect the DCM (telematics transceiver) for a certain period of time (90 seconds) after the ignition switch is turned on (ACC) and the radio and display receiver assembly confirms that the information is missing by checking past DCM (telematics transceiver) recognition information (registered information), this DTC will be stored.

The telematics system uses USB communication between devices. If an open, short, short to +B or short to ground occurs in the USB circuit, communication is interrupted and the telematics system will not operate normally.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15DB

Telematics Transceiver Disconnected

DCM (telematics transceiver) disconnected
  • Harness or connector
  • DCM (telematics transceiver)
  • DCM (telematics transceiver) power source circuit
  • Radio and display receiver assembly

HINT:

This DTC may be stored due to environmental reasons such as electrical noise or interference.

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 Audio and Visual System.

    Click here

  • When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC is stored.
    • The radio and display receiver assembly may not operate normally.
  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • Before replacing the DCM (telematics transceiver), refer to Registration.

    Click here

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(b) Turn the ignition switch off.

(c) Turn the ignition switch to ON and wait for 90 seconds.

(d) 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

NG

2.

CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) POWER SOURCE)

(a) Disconnect the DCM (telematics transceiver) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

F134-4 (E) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

F134-1 (+B) - F134-4 (E)

Ignition switch off

11 to 14 V

F134-8 (ACC) - F134-4 (E)

Ignition switch ACC

11 to 14 V

F134-7 (IG2) - F134-4 (E)

Ignition switch to ON

11 to 14 V

*a

Front view of wire harness connector

(to DCM (Telematics Transceiver))
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

3.

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER))

(a) Disconnect the F130 radio and display receiver assembly connector.

(b) Disconnect the F133 DCM (telematics transceiver) connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

F130-10 (USBV) - F133-5 (USBV)

Always

Below 1 Ω

F130-11 (USBG) - F133-3 (USBG)

Always

Below 1 Ω

F130-10 (USBV) or F133-5 (USBV) - Body ground

Always

10 kΩ or higher

F130-11 (USBG) or F133-3 (USBG) - Body ground

Always

10 kΩ or higher
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

4.

INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

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

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

F130-11 (USBG) - Body ground

Always

Below 1 Ω

*a

Component without harness connected

(Radio and Display Receiver Assembly)

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

F130-10 (USBV) - F130-11 (USBG)

ignition switch ACC

4.75 to 5.25 V
NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

OK

5.

CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - RADIO AND DISPLAY RECEIVER ASSEMBLY)

(a) Disconnect the F133 DCM (telematics transceiver) connector.

(b) Disconnect the F136 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

F133-2 (USB+) - F136-1 (USB+)

Always

Below 1 Ω

F133-1 (USB-) - F136-2 (USB-)

Always

Below 1 Ω

F133-6 (USBS) - F136-3 (USBS)

Always

Below 1 Ω

F133-2 (USB+) or F136-1 (USB+) - Body ground

Always

10 kΩ or higher

F133-1 (USB-) or F136-2 (USB-) - Body ground

Always

10 kΩ or higher

F133-6 (USBS) or F136-3 (USBS) - Body ground

Always

10 kΩ or higher

*a

Front view of wire harness connector

(to DCM (telematics transceiver))

*b

Front view of wire harness connector

(to Radio and Display Receiver Assembly)
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

6.

CHECK DCM (TELEMATICS TRANSCEIVER)

(a) Replace the DCM (telematics transceiver) with a new one.

Click here

(b) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(c) Turn the ignition switch off.

(d) Turn the ignition switch to ON and wait for 90 seconds.

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

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

OK

END (DCM [TELEMATICS TRANSCEIVER] IS DEFECTIVE)
NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Air Conditioner ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)
    DESCRIPTION This DTC is stored when items controlled by the air conditioning amplifier assembly cannot be customized via the audio and visual system vehicle customization screen. HINT: The air co ...

    Speaker Output Short (B15C3)
    DESCRIPTION This DTC is stored when a malfunction occurs in the speakers. DTC No. Detection Item DTC Detection Condition Trouble Area B15 ...

    Other materials:

    Toyota CH-R Service Manual > Tire Pressure Warning System: No Signal from Transmitter ID1 (C2121/21-C2125/25,C2181/81-C2185/85)
    DESCRIPTION The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressures. The measured values are transmitted to the tire pressure warning ECU and receiver in the vehicle as radio waves. The ECU compares the measured tire pres ...

    Toyota CH-R Service Manual > Back Door Outside Garnish: Disassembly
    DISASSEMBLY PROCEDURE 1. REMOVE NO. 2 BACK DOOR OUTSIDE GARNISH (a) Remove the 7 No. 1 outside moulding retainers and No. 2 back door outside garnish as shown in the illustration. Remove in this Direction 2. REMOVE BACK DOOR GARNISH SIDE PROTECTOR LH ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2019 Copyright www.tochr.net
    0.0199