Toyota 4Runner manuals

Toyota 4Runner: 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 inspection procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (DCM - BATTERY AND BODY GROUND)

(a) Disconnect the F39 DCM (Telematics Transceiver) connector.


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

F39-4 (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

F39-1 (+B) - F39-4 (E)

Always

11 to 14 V

F39-7 (IG2) - F39-4 (E)

Ignition switch ON

11 to 14 V

F39-8 (ACC) - F39-4 (E)

Ignition switch ACC

11 to 14 V

Text in Illustration

*a

Front view of wire harness connector

(to DCM [Telematics Transceiver])


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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