DCM Power Source Circuit: Procedure

1. Disconnect the DCM (telematics transceiver) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N87-4 (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
   N87-1 (+B) - N87-4 (E)	Always	11 to 14 V
   N87-7 (IG2) - N87-4 (E)	Engine switch on (IG)	11 to 14 V
   N87-8 (ACC) - N87-4 (E)	Engine switch on (ACC)	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   2