DCM Power Source Circuit [11/2016 - ]: Procedure

1. Disconnect the F35 DCM (Telematics Transceiver) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to DCM (Telematics Transceiver))

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F35-4 (E) - Body ground	Always	Below 1 Ω

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   F35-1 (+B) - F35-4 (E)	Always	11 to 14 V*1 9.5 to 14 V*2
   F35-7 (IG2) - F35-4 (E)	Engine switch on (IG)	11 to 14 V*1 9.5 to 14 V*2
   F35-8 (ACC) - F35-4 (E)	Engine switch on (ACC)	11 to 14 V*1 9.5 to 14 V*2
   *1: w/o Stop and Start System *2: w/ Stop and Start System

   Result

   Result	Proceed to
   OK	A
   NG (w/o Stop and Start System)	B
   NG (w/ Stop and Start System)	C

Result:  1

A 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [12/2013 - ] 

Result:  2

B 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result:  3

C 

GO TO STOP AND START SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2016 - ]