Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001AYYL
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 - 08/2020]
Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for HV Model): DCM POWER SOURCE CIRCUIT; 2019 - 2020 MY Avalon HV [04/2018 - 08/2020]

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) - AUXILIARY BATTERY AND GROUND)

(a) Disconnect the G9 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

G9-4 (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

G9-1 (+B) - G9-4 (E)

Always

11 to 14 V

G9-7 (IG2) - G9-4 (E)

Power switch on (IG)

11 to 14 V

G9-8 (ACC) - G9-4 (E)

Power switch on (ACC)

11 to 14 V

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR