Power Source Circuit [01/2017 - 05/2023]: Procedure

1. Disconnect the a5 forward recognition camera connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Forward Recognition Camera)

2. Turn the power switch on (IG).
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   a5-7 (IGB) - Body ground	Power switch on (IG)	11 to 14 V

4. Connect the a5 forward recognition camera connector.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

Result: 

OK 

See step  2

1. Disconnect the a5 forward recognition camera connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   a5-10 (GND) - Body ground	Always	Below 1 Ω

3. Connect the a5 forward recognition camera connector

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [01/2017 - 05/2023] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR (FORWARD RECOGNITION CAMERA - BODY GROUND)