Park Assist Monitoring. Parking Assist Monitor System (W/ Side Monitor System) Chk Message(S) Are Displayed On The Signal Check Screen.

On the SIGNAL CHECK screen, "OK" (blue) is displayed for items with a normal inspection result or input state.
On the SIGNAL CHECK screen, "CHK" (red) is displayed for items with an abnormal inspection result or input state.
Displayed items may differ depending on vehicle specifications.

Item	Signal Input Method	Detail	DTC Output when Abnormal Result is Displayed	Signal Receiver
CAN	CAN communication	CAN communication signal	DTC is output	Related ECUs
CAMERA SW	Vehicle wire harness	Steering pad switch assembly (wide view front and side monitor switch) signal input	DTC is not output	Steering pad switch assembly (wide view front and side monitor switch)
MIRROR SW	Vehicle wire harness	Outer rear view mirror retract signal input	DTC is not output	Main body ECU (Multiplex network body ECU)
SHIFT	Vehicle wire harness	Shift signal input	DTC is output	Park/neutral position switch assembly (for Automatic Transmission) Back-up light switch assembly (for Manual Transmission)
HANDLE	CAN communication	Steering position signal input	DTC is output	ECM
BODY	CAN communication	Body size signal	DTC is output	ECM
DEST	CAN communication	Destination information signal input	DTC is output	ECM
D-CAM SET	Vehicle wire harness	Driver side television camera feedback signal	DTC is output	Individual setting
T/M	CAN communication	Transmission type signal	DTC is output	ECM

WIRING DIAGRAM

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Park Assist Monitoring.Toyota Parking Assist-Sensor System (W/ Multi-Display).Parking Assist Monitor System (W/ Side Monitor System) Chk Message(S) Are Displayed On The Signal Check Screen.

INSPECTION PROCEDURE

NOTICE:

When "System initializing" is displayed on the navigation receiver assembly*1 or radio and display receiver assembly*2 after the battery cable is disconnected, correct the steering angle neutral point (LandCruiser RM0000035DD06LX.html).
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 parking assist monitor system may be needed (LandCruiser RM0000035DD06LX.html).

*1: for Navigation Receiver Type
*2: for Radio and Display Type

1.CHECK DISPLAY CHECK MODE

Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

Check which items display on the SIGNAL CHECK screen.

Result
Result	Proceed to
"CAMERA SW" displays "CHK" (red)	A
"SHIFT" displays "CHK" (red) (for Automatic Transmission)	B
"SHIFT" displays "CHK" (red) (for Manual Transmission)	C
"MIRROR SW" displays "CHK" (red)	D
"CAN" displays "CHK" (red)	E
"HANDLE", "BODY", "DEST", "T/M" or "D-CAM SET" displays unmatched information	E

Go to step 7

Go to step 9

INSPECT OUTER MIRROR SWITCH ASSEMBLY

CHECK FOR DTC (LandCruiser RM0000035DB07DX.html)

A

2.INSPECT STEERING PAD SWITCH ASSEMBLY (WIDE VIEW FRONT AND SIDE MONITOR SWITCH)

Remove the steering pad switch assembly (LandCruiser RM0000039SA01YX.html).

Inspect the steering pad switch assembly (LandCruiser RM000003C4V01IX.html).

REPLACE STEERING PAD SWITCH ASSEMBLY (LandCruiser RM000003C4V01IX.html)

OK

3.INSPECT SPIRAL CABLE SUB-ASSEMBLY

Remove the spiral cable sub-assembly (LandCruiser RM000002O8X02DX.html).

Inspect the spiral cable sub-assembly (LandCruiser RM000002O8V03FX.html).

REPLACE SPIRAL CABLE SUB-ASSEMBLY (LandCruiser RM000002O8X02DX.html)

OK

4.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - PARKING ASSIST ECU)

Disconnect the G40 spiral cable sub-assembly connector.

Disconnect the I6 parking assist ECU connector.

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
G40-3 (+DP) - I6-8 (BLSW)
Always
Below 1 Ω
G40-3 (+DP) - Body ground
Always
10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT SWITCH CONTROL ECU - SPIRAL CABLE SUB-ASSEMBLY AND BODY GROUND)

for Automatic Transmission:
1. Disconnect the G163 driving support switch control ECU connector.
2. Disconnect the G40 spiral cable sub-assembly connector.
3. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  G163-14 (SWI2) - G40-10 (GND1)
  Always
  Below 1 Ω
  G163-14 (SWI2) - Body ground
  Always
  10 kΩ or higher
  G163-7 (GND) - Body ground
  Always
  Below 1 Ω

for Manual Transmission:
1. Disconnect the G76 driving support switch control ECU connector.
2. Disconnect the G40 spiral cable sub-assembly connector.
3. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  G76-4 (SWI2) - G40-10 (GND1)
  Always
  Below 1 Ω
  G76-4 (SWI2) - Body ground
  Always
  10 kΩ or higher
  G76-16 (GND) - Body ground
  Always
  Below 1 Ω

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

6.CHECK DRIVING SUPPORT SWITCH CONTROL ECU

Replace the driving support switch control ECU with a new or normally functioning one (LandCruiser RM00000466X024X.html).

Check that "CAMERA SW" displays "OK" on the SIGNAL CHECK screen.
OK:
"CAMERA SW" displays "OK".

REPLACE PARKING ASSIST ECU (LandCruiser RM00000466X026X.html)

END (DRIVING SUPPORT SWITCH CONTROL ECU IS DEFECTIVE)

7.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

Remove the park/neutral position switch assembly.
1. for A750F: LandCruiser RM0000010NC089X.html
2. for AC60F: LandCruiser RM000000O5O01MX.html

Inspect the park/neutral position switch assembly.
1. for A750F: LandCruiser RM000002BKX04GX.html
2. for AC60F: LandCruiser RM000000OD401HX.html

Result
Proceed to	Result
OK	A
NG (for A750F)	B
NG (for AC60F)	C

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (LandCruiser RM0000010NC089X.html)

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (LandCruiser RM000000O5O01MX.html)

A

8.CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - PARKING ASSIST ECU AND BATTERY)

Disconnect the C159 park/neutral position switch assembly connector.

Disconnect the I6 parking assist ECU connector.

Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
Switch Condition
Specified Condition
C159-2 (RB) - Body ground
Engine switch on (IG)
11 to 14 V

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
C159-1 (RL) - I6-27 (REV)
Always
Below 1 Ω
C159-1 (RL) - Body ground
Always
10 kΩ or higher

Result
Proceed to	Result
OK (for LHD)	A
OK (for RHD)	B
NG	C

REPLACE PARKING ASSIST ECU (LandCruiser RM00000470500OX.html)

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE PARKING ASSIST ECU (LandCruiser RM00000466X026X.html)

9.INSPECT BACK-UP LIGHT SWITCH ASSEMBLY

Remove the back-up light switch assembly (LandCruiser RM0000047AR005X.html).

Inspect the back-up light switch assembly (LandCruiser RM0000047AP005X.html).

REPLACE BACK-UP LIGHT SWITCH ASSEMBLY (LandCruiser RM0000047AR005X.html)

OK

10.CHECK HARNESS AND CONNECTOR (BACK-UP LIGHT SWITCH ASSEMBLY - PARKING ASSIST ECU AND BATTERY)

for 1KD-FTV, 1GD-FTV:
1. Disconnect the C160 back-up light switch assembly connector.
2. Disconnect the I6 parking assist ECU connector.
3. Measure the voltage according to the value(s) in the table below.
  Standard Voltage:
  Tester Connection
  Switch Condition
  Specified Condition
  C160-1 - Body ground
  Engine switch on (IG)
  11 to 14 V
4. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  C160-2 - I6-27 (REV)
  Always
  Below 1 Ω
  C160-2 - Body ground
  Always
  10 kΩ or higher

for 1GR-FE:
1. Disconnect the C41 back-up light switch assembly connector.
2. Disconnect the I6 parking assist ECU connector.
3. Measure the voltage according to the value(s) in the table below.
  Standard Voltage:
  Tester Connection
  Switch Condition
  Specified Condition
  C41-2 - Body ground
  Engine switch on (IG)
  11 to 14 V
4. Measure the resistance according to the value(s) in the table below.
  Standard Resistance:
  Tester Connection
  Condition
  Specified Condition
  C41-1 - I6-27 (REV)
  Always
  Below 1 Ω
  C41-1 - Body ground
  Always
  10 kΩ or higher

Result
Proceed to	Result
OK (for LHD)	A
OK (for RHD)	B
NG	C

REPLACE PARKING ASSIST ECU (LandCruiser RM00000470500OX.html)

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE PARKING ASSIST ECU (LandCruiser RM00000466X026X.html)

11.INSPECT OUTER MIRROR SWITCH ASSEMBLY

Remove the outer mirror switch assembly (LandCruiser RM000000W1L07LX.html).

Inspect the outer mirror switch assembly (LandCruiser RM000001DHF073X.html).

REPLACE OUTER MIRROR SWITCH ASSEMBLY

OK

12.CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH ASSEMBLY - PARKING ASSIST ECU)

Disconnect the G11 outer mirror switch assembly connector.

Disconnect the I6 parking assist ECU connector.

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
G11-14 (MF) - I6-5 (MPOS)
Always
Below 1 Ω
G11-14 (MF) - Body ground
Always
10 kΩ or higher

Result
Proceed to	Result
OK (for LHD)	A
OK (for RHD)	B
NG	C

REPLACE PARKING ASSIST ECU (LandCruiser RM00000470500OX.html)

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE PARKING ASSIST ECU (LandCruiser RM00000466X026X.html)

Tester Connection	Condition	Specified Condition
G40-3 (+DP) - I6-8 (BLSW)	Always	Below 1 Ω
G40-3 (+DP) - Body ground	Always	10 kΩ or higher

Tester Connection	Switch Condition	Specified Condition
C159-2 (RB) - Body ground	Engine switch on (IG)	11 to 14 V