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

1. Check if the parking assist monitor system is malfunctioning.

   HINT: 

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ]

   Result

   Result	Proceed to
   Malfunction does not occur	A
   Malfunction occurs	B

Result: 

B 

GO TO PARKING ASSIST MONITOR SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ] 

Result: 

A 

See step  2

1. Choose the model to be inspected.

   Result

   Result	Proceed to
   w/o Parking Support Brake System	A
   w/ Parking Support Brake System	B

Result: 

B 

See step  4

Result: 

A 

See step  3

Pre-procedure1

• Disconnect the C146 radio and display receiver assembly connector.
• Disconnect the M28 rear television camera assembly connector.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  C146-3 (CVO+) - M28-6 (CV+)	Always	Below 1 Ω	Ω
  C146-4 (CVO-) - M28-5 (CV-)	Always	Below 1 Ω	Ω
  C146-1 (GGND) - M28-3 (CGND)	Always	Below 1 Ω	Ω
  C146-3 (CVO+) or M28-6 (CV+) - Body ground	Always	10 kΩ or higher	kΩ
  C146-4 (CVO-) or M28-5 (CV-) - Body ground	Always	10 kΩ or higher	kΩ
  C146-1 (GGND) or M28-3 (CGND) - Body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Pre-procedure1

• Disconnect the C146 radio and display receiver assembly connector.
• Disconnect the M29 rear television camera assembly connector.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  C146-3 (CVO+) - M29-6 (CV+)	Always	Below 1 Ω	Ω
  C146-4 (CVO-) - M29-5 (CV-)	Always	Below 1 Ω	Ω
  C146-1 (GGND) - M29-3 (CGND)	Always	Below 1 Ω	Ω
  C146-3 (CVO+) or M29-6 (CV+) - Body ground	Always	10 kΩ or higher	kΩ
  C146-4 (CVO-) or M29-5 (CV-) - Body ground	Always	10 kΩ or higher	kΩ
  C146-1 (GGND) or M29-3 (CGND) - Body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR