DTC C1622-87: Rear Camera Image Signal Missing Message [10/2022 - 10/2023]: Procedure

Pre-procedure1

1. Disconnect the L266 parking assist ECU connector.
2. Disconnect the L236 rear television camera assembly connector.

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L266-1 (CB+) - L236-1 (CB+)	Always	Below 1 Ω
   L266-3 (CV+) - L236-4 (CV+)	Always	Below 1 Ω
   L266-4 (CV-) - L236-3 (CV-)	Always	Below 1 Ω
   L266-2 (CGND) - L236-2 (CGND)	Always	Below 1 Ω
   L266-5 (SGND) - L236-5 (SGND)	Always	Below 1 Ω
   L266-1 (CB+) or L236-1 (CB+) - Body ground	Always	10 kΩ or higher
   L266-3 (CV+) or L236-4 (CV+) - Body ground	Always	10 kΩ or higher
   L266-4 (CV-) or L236-3 (CV-) - Body ground	Always	10 kΩ or higher
   L266-2 (CGND) or L236-2 (CGND) - Body ground	Always	10 kΩ or higher
   L266-5 (SGND) or L236-5 (SGND) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

   Post-procedure1

4. None

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

Pre-procedure1

1. Disconnect the L266 parking assist ECU connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Parking Assist ECU)

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   2 (CGND) - Body ground	Always	Below 1 Ω
   4 (CV-) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

   Post-procedure1

3. None

Result: 

NG 

REPLACE PARKING ASSIST ECU. Refer to  REMOVAL [10/2022 - 10/2023] 

Result: 

OK 

See step  3

Pre-procedure1

1. Disconnect the L236 rear television camera assembly.

   Procedure1

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L236-2 (CGND) - Body ground	Always	Below 1 Ω

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   L236-1 (CB+) - L236-2 (CGND)	Ignition switch ON	7.5 to 8.5 V
   L236-1 (CB+) - L236-2 (CGND)	Ignition switch off	Below 1 V

   Result

   Proceed to
   OK
   NG

   Post-procedure1

4. None

Result: 

OK 

REPLACE REAR TELEVISION CAMERA ASSEMBLY. Refer to  REMOVAL [10/2022 - 10/2023] 

Result: 

NG 

REPLACE PARKING ASSIST ECU. Refer to  REMOVAL [10/2022 - 10/2023]