DTC C1621: Back Camera Power Supply Failure [10/2017 - 10/2022]: Procedure

1. Disconnect the G95 parking assist ECU connector.
2. Disconnect the L85 rear television camera assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G95-32 (CGND) - L85-5 (CGND)	Always	Below 1 Ω
   G95-32 (CGND) or L85-5 (CGND) - Body ground	Always	10 kΩ or higher
   G95-31 (SGND) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

1. Disconnect the L85 rear television camera assembly connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   L85-6 (CB+) - Body ground	Power switch on (IG)	11 to 14V
   	Power switch off	Below 1 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE REAR TELEVISION CAMERA ASSEMBLY. Refer to  REMOVAL [10/2017 - 10/2020]  , or refer to  REMOVAL [10/2020 - 11/2021]  , or refer to  REMOVAL [11/2021 - 10/2022] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR