Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - PARK ASSIST / MONITORING

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY AND BODY GROUND)

CHECK PARKING ASSIST ECU (SCB+, SGND)

CHECK SIDE TELEVISION CAMERA ASSEMBLY (SCV+, SGND OR DCV+, DGND)

REPLACE SIDE TELEVISION CAMERA ASSEMBLY

CHECK FOR DTC

DTC C1683 Side Camera Feedback Malfunction

DTC C1684 Side Camera Current Malfunction

DESCRIPTION

DTC C1683 is stored if the parking assist ECU judges as a result of its self check that a synchronization problem is occurring in the image signal sent from the side television camera assembly (for Front Passenger Side) to the parking assist ECU.

DTC C1684 is stored if the parking assist ECU judges as a result of its self check that there is a problem with the current supplied from the side television camera assembly (for Front Passenger Side) connected to the parking assist ECU.

DTC Code	DTC Detection Condition	Trouble Area
C1683	Side Camera Feedback Malfunction	Harness or connector Parking assist ECU Side television camera assembly (for Front Passenger Side) Outer rear view mirror assembly (for Front Passenger Side)
C1684	Side Camera Current Malfunction

WIRING DIAGRAM

Dtc C1683 Side Camera Feedback Malfunction. PARK ASSIST / MONITORING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

NOTICE:

When "System initializing" is displayed on the parking assist ECU after the cable is disconnected from the negative (-) battery terminal, correct the steering angle neutral point ().

Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the side monitor system may be needed ().

1.CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY AND BODY GROUND)

Disconnect the F75 and F76 parking assist ECU connectors.

Disconnect the I32*1 or I35*2 outer rear view mirror assembly (for Front Passenger Side) connector.

*1: for LHD

*2: for RHD

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

Standard Resistance:
for LHD:

Tester Connection	Condition	Specified Condition
F76-34 (SCV-) - I32-12 (SCV-)	Always	Below 1 Ω
F76-10 (SCV+) - I32-1 (SCV+)	Always	Below 1 Ω
F76-33 (SGND) - I32-13 (SGND)	Always	Below 1 Ω
F76-32 (SCB+) - I32-2 (SCB+)	Always	Below 1 Ω
F75-4 (GND1) - Body ground	Always	Below 1 Ω
F76-34 (SCV-) - Body ground	Always	10 kΩ or higher
F76-10 (SCV+) - Body ground	Always	10 kΩ or higher
F76-33 (SGND) - Body ground	Always	10 kΩ or higher
F76-32 (SCB+) - Body ground	Always	10 kΩ or higher

for RHD:

Tester Connection	Condition	Specified Condition
F76-34 (SCV-) - I35-12 (DCV-)	Always	Below 1 Ω
F76-10 (SCV+) - I35-1 (DCV+)	Always	Below 1 Ω
F76-33 (SGND) - I35-13 (DGND)	Always	Below 1 Ω
F76-32 (SCB+) - I35-2 (DCB+)	Always	Below 1 Ω
F75-4 (GND1) - Body ground	Always	Below 1 Ω
F76-34 (SCV-) - Body ground	Always	10 kΩ or higher
F76-10 (SCV+) - Body ground	Always	10 kΩ or higher
F76-33 (SGND) - Body ground	Always	10 kΩ or higher
F76-32 (SCB+) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.CHECK PARKING ASSIST ECU (SCB+, SGND)

Reconnect the F75 and F76 parking assist ECU connectors.

Dtc C1683 Side Camera Feedback Malfunction. PARK ASSIST / MONITORING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

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

Standard Resistance:
Tester Connection Condition Specified Condition
F76-33 (SGND) - Body ground Always Below 1 Ω

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
F76-32 (SCB+) - F76-33 (SGND) Engine switch on (IG), front and side monitor main switch assembly on 5.5 to 7.05 V

Text in Illustration
*a	Component with harness connected (Parking Assist ECU)

REPLACE PARKING ASSIST ECU ()

OK

3.CHECK SIDE TELEVISION CAMERA ASSEMBLY (SCV+, SGND OR DCV+, DGND)

Reconnect the I32*1 or I35*2 outer rear view mirror assembly (for Front Passenger Side) connector.

*1: for LHD

*2: for RHD

Dtc C1683 Side Camera Feedback Malfunction. PARK ASSIST / MONITORING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Text in Illustration
*a	Component with harness connected (Parking Assist ECU)	*b	Waveform A
*c	Waveform B	*d	Synchronization Signal
*e	Video Waveform	-	-

HINT:

A waterproof connector is used for the side television camera assembly (for Front Passenger Side). Therefore, inspect the waveform at the parking assist ECU with the connector connected.

The video waveform changes according to the image sent by the side television camera assembly (for Front Passenger Side).

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

OK:
Waveform is as shown in the illustration.

Item	Content
Terminal No. (Symbol)	F76-10 (SCV+) - F76-33 (SGND)
Tool Setting	200 mV/DIV., 50 μsec./DIV.
Condition	Waveform A: Engine switch on (IG), front and side monitor main switch assembly on and camera lens is not covered, displaying an image Waveform B: Engine switch on (IG), front and side monitor main switch assembly on and camera lens is covered, blacking out the screen

Go to step 4

REPLACE PARKING ASSIST ECU ()

4.REPLACE SIDE TELEVISION CAMERA ASSEMBLY

Replace the side television camera assembly (for Front Passenger Side) with a new or normally functioning one ().

NEXT

5.CHECK FOR DTC

Clear the DTCs ().

Check for DTCs ().

OK:
DTC C1683 or C1684 is not output.

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY ()

END (SIDE TELEVISION CAMERA ASSEMBLY IS DEFECTIVE)

PARK ASSIST / MONITORING

Land Cruiser URJ200 URJ202 GRJ200 VDJ200

SIDE MONITOR SYSTEM

Tester Connection	Switch Condition	Specified Condition
F76-32 (SCB+) - F76-33 (SGND)	Engine switch on (IG), front and side monitor main switch assembly on	5.5 to 7.05 V