DTC C1622-87: Rear Camera Image Signal Missing Message [09/2022 - ]: Procedure

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

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2022 - ]

   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 [09/2022 - ] 

Result: 

A 

See step  2

1. Disconnect the G148 multi-display assembly connector.
2. Disconnect the T3 television camera wire connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G148-2 (GB+) - T3-4 (CB+)	Always	Below 1 Ω
   G148-4 (GVO+) - T3-6 (CV+)	Always	Below 1 Ω
   G148-3 (GVO-) - T3-5 (CV-)	Always	Below 1 Ω
   G148-1 (GGND) - T3-3 (CGND)	Always	Below 1 Ω
   G148-5 (SGND) - T3-7 (SGND)	Always	Below 1 Ω
   G148-2 (GB+) or T3-4 (CB+) - Body ground	Always	10 kΩ or higher
   G148-4 (GVO+) or T3-6 (CV+) - Body ground	Always	10 kΩ or higher
   G148-3 (GVO-) or T3-5 (CV-) - Body ground	Always	10 kΩ or higher
   G148-1 (GGND) or T3-3 (CGND) - 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. Disconnect the rear television camera wire.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A-2 (CB+) - T3-4 (CB+)	Always	Below 1 Ω
   A-4 (CVI+) - T3-6 (CV+)	Always	Below 1 Ω
   A-3 (CVI-) - T3-5 (CV-)	Always	Below 1 Ω
   A-1 (CGND) - T3-3 (CGND)	Always	Below 1 Ω
   A-5 (SGND) - T3-7 (SGND)	Always	Below 1 Ω
   A-2 (CB+) or T3-4 (CB+) - Body ground	Always	10 kΩ or higher
   A-4 (CVI+) or T3-6 (CV+) - Body ground	Always	10 kΩ or higher
   A-3 (CVI-) or T3-5 (CV-) - Body ground	Always	10 kΩ or higher
   A-1 (CGND) or T3-3 (CGND) - Body ground	Always	10 kΩ or higher
   A-5 (SGND) or T3-7 (SGND) - Body ground	Always	10 kΩ or higher

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of Television Camera Wire connector (to Rear Television Camera Assembly)
   *b	Front view of Television Camera Wire connector (to Wire Harness)

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MULTI-DISPLAY ASSEMBLY. Refer to  REMOVAL [08/2021 - ] 

Result: 

NG 

REPLACE TELEVISION CAMERA WIRE. Refer to  REMOVAL [09/2022 - ]