Stereo Component Amplifier Power Source Circuit [08/2019 - ]: Procedure

1. Disconnect the stereo component amplifier assembly connectors.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Stereo Component Amplifier Assembly)

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H145-1 (+B) - H145-2 (GND)	Always	11 to 14 V
   H145-3 (+B2) - H145-2 (GND)	Always	11 to 14 V
   H209-12 (ACC) - H145-2 (GND)	Engine switch on (ACC)	11 to 14 V

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H145-2 (GND) - Body ground	Always	Below 1 Ω
   H145-6 (GND2) - Body ground	Always	Below 1 Ω

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

(Refer to PROBLEM SYMPTOMS TABLE [08/2019 - ] )

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR