DTC C1687: Over Current Detected in Driver Side Camera [06/2018 - 09/2022]: Procedure

1. Clear the DTCs.

   Chassis > Circumference Monitoring Camera Control Module > Clear DTCs 

2. Check for DTCs.

   Chassis > Circumference Monitoring Camera Control Module > Trouble Codes 

   OK

   DTC C1687 is not output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

Result: 

NG 

See step  2

1. Disconnect the N43 parking assist ECU connector.
2. Disconnect the J34 outer rear view mirror assembly LH connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N43-12 (LCB+) - J34-2 (LCB+)	Always	Below 1 Ω
   N43-35 (LGND) - J34-1 (LGND)	Always	Below 1 Ω
   N43-12 (LCB+) or J34-2 (LCB+) - Body ground	Always	10 kΩ or higher
   N43-35 (LGND) or J34-1 (LGND) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Remove the parking assist ECU with the connector still connected.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (Parking Assist ECU)

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   N43-35 (LGND) - Body ground	Always	Below 1 Ω

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   N43-12 (LCB+) - N43-35 (LGND)	Engine switch on (IG)	5.5 to 7.05 V

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE PARKING ASSIST ECU. Refer to  REMOVAL [06/2018 - 09/2022] 

Result: 

OK 

See step  4

1. Replace the side television camera assembly LH with a new or normally functioning one.

   Refer to REMOVAL [06/2018 - 09/2022]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Clear the DTCs.

   Chassis > Circumference Monitoring Camera Control Module > Clear DTCs 

2. Check for DTCs.

   Chassis > Circumference Monitoring Camera Control Module > Trouble Codes 

   OK

   DTC C1687 is not output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (SIDE TELEVISION CAMERA ASSEMBLY LH IS DEFECTIVE) 

Result: 

NG 

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH. Refer to  REMOVAL [06/2018 - 09/2022]