Active Noise Control ECU Communication Stop Mode [04/2018 -]: Procedure

1. Disconnect the cable from the negative (-) battery terminal.
2. Disconnect the G68 stereo component equalizer assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G68-1 (CANH) - G68-15 (CANL)	Cable disconnected from negative (-) battery terminal	54 to 69 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (STEREO COMPONENT EQUALIZER ASSEMBLY) 

Result: 

OK 

See step  2

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G68-28 (GND) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω

2. Reconnect the cable to the negative (-) battery terminal.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   G68-13 (ACC) - Body ground	Engine switch on (ACC)	11 to 14 V
   G68-14 (+B) - Body ground	Always	11 to 14 V
   G68-27 (IGN) - Body ground	Engine switch on (IG)	11 to 14 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE STEREO COMPONENT EQUALIZER ASSEMBLY. Refer to  REMOVAL [04/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 -] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)