DTC C1682: Front Camera Current Malfunction [11/2018 - 10/2022]: Procedure

1. Disconnect the N24 parking assist ECU connector.
2. Disconnect the B12 front television camera assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N24-15 (BCB+) - B12-6 (BCB+)	Always	Below 1 Ω
   N24-37 (BGND) - B12-5 (BGND)	Always	Below 1 Ω
   N24-15 (BCB+) or B12-6 (BCB+) - Body ground	Always	10 kΩ or higher
   N24-37 (BGND) or B12-5 (BGND) - 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. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N24-37 (BGND) - Body ground	Always	Below 1 Ω

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (Parking Assist ECU)

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   N24-15 (BCB+) - N24-37 (BGND)	Power switch on (IG)	5.5 to 7.05 V
   N24-15 (BCB+) - N24-37 (BGND)	Power switch off	Below 1 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE FRONT TELEVISION CAMERA ASSEMBLY. Refer to  REMOVAL [11/2018 - ] 

Result: 

NG 

REPLACE PARKING ASSIST ECU. Refer to  REMOVAL [11/2018 - 10/2022]