Toyota CH-R Service Manual: Dcm Power Source Circuit

Toyota CH-R Service Manual / Cellular Communication / Safety Connect System / Dcm Power Source Circuit

DESCRIPTION

This is the power source circuit to operate the DCM (Telematics Transceiver).

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - BATTERY AND GROUND)

(a) Disconnect the F134 DCM (Telematics Transceiver) connector.

*a

Front view of wire harness connector

(to DCM (Telematics Transceiver))

(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

Condition

Specified Condition

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

Always

11 to 14 V

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

Ignition switch ON

11 to 14 V

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

Ignition switch ACC

11 to 14 V
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
    Manual (SOS) Switch Red Indicator Malfunction (B1570)
    DESCRIPTION This DTC is stored when the DCM (Telematics Transceiver) detects an open or short in the manual (SOS) switch red indicator circuit of the manual (SOS) switch. The manual (SOS) switch r ...

    Green And Red Indicators Do Not Come On When Ig-on
    DESCRIPTION If the red and green indicators fail to illuminate after the ignition switch turned to ON, the vehicle does not recognize the DCM (Telematics Transceiver). The DCM (Telematics Transce ...

    Other materials:

    Toyota CH-R Service Manual > Windshield Deicer System: Operation Check
    OPERATION CHECK CHECK WINDSHIELD DEICER SYSTEM NOTICE: If the battery voltage becomes low, windshield deicer operation is canceled to prioritize supplying power to the power steering system. Click here (a) Turn the ignition switch to ON. (b) Check that the windshield deicer becomes warm ...

    Toyota CH-R Service Manual > Can Communication System: Check Bus 3 Line for Short to +B
    DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when no resistance exists between terminal 6 (CA3H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 21 (CA3L) of the central gateway ECU (network gateway ECU) and t ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2019 Copyright www.tochr.net
    0.0179