DESCRIPTION
On the SIGNAL CHECK screen, it is possible to check if the signals sent to the parking assist ECU are normal Click here.
Tech Tips
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 |
| 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
INSPECTION PROCEDURE
Note
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 Click here.
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 Click here.
*1: for Navigation Receiver Type
*2: for Radio and Display Type
PROCEDURE
CHECK DISPLAY CHECK MODE
Check which items display on the SIGNAL CHECK screen.
| Result | Proceed to |
|---|---|
| "CAMERA SW" displays "CHK" (red) | A |
| "SHIFT" displays "CHK" (red) | B |
| "MIRROR SW" displays "CHK" (red) | C |
| "CAN" displays "CHK" (red) | D |
| "HANDLE", "BODY", "DEST", "T/M" or "D-CAM SET" displays unmatched information | D |
| B |
|
INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here |
| C |
|
INSPECT OUTER MIRROR SWITCH ASSEMBLY Click here |
| D |
|
CHECK FOR DTC Click here |
| A |
|
INSPECT STEERING PAD SWITCH ASSEMBLY (WIDE VIEW FRONT AND SIDE MONITOR SWITCH)
Remove the steering pad switch assembly Click here.
Inspect the steering pad switch assembly Click here.
| NG |
|
REPLACE STEERING PAD SWITCH ASSEMBLY Click here |
| OK |
|
INSPECT SPIRAL CABLE SUB-ASSEMBLY
Remove the spiral cable sub-assembly Click here.
Inspect the spiral cable sub-assembly Click here.
| NG |
|
REPLACE SPIRAL CABLE SUB-ASSEMBLY Click here |
| OK |
|
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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (DRIVING SUPPORT SWITCH CONTROL ECU - SPIRAL CABLE SUB-ASSEMBLY AND BODY GROUND)
for Automatic Transmission:
Disconnect the G163 driving support switch control ECU connector.
Disconnect the G40 spiral cable sub-assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
for Manual Transmission:
Disconnect the G76 driving support switch control ECU connector.
Disconnect the G40 spiral cable sub-assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
REPLACE DRIVING SUPPORT SWITCH CONTROL ECU
Replace the driving support switch control ECU with a new or normally functioning one Click here.
Check that "CAMERA SW" displays "OK" on the SIGNAL CHECK screen.
| OK |
|---|
| "CAMERA SW" displays "OK". |
| NG |
|
REPLACE PARKING ASSIST ECU Click here |
| OK |
|
END (DRIVING SUPPORT SWITCH CONTROL ECU IS DEFECTIVE)
INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY
Remove the park/neutral position switch assembly Click here.
Inspect the park/neutral position switch assembly Click here.
| NG |
|
REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - PARKING ASSIST ECU AND BATTERY)
Disconnect the C40 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 | ||||||
|---|---|---|---|---|---|---|
|
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Proceed to | Result |
|---|---|
| OK (for LHD) | A |
| OK (for RHD) | B |
| NG | C |
| B |
|
REPLACE PARKING ASSIST ECU Click here |
| C |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| A |
|
REPLACE PARKING ASSIST ECU Click here
INSPECT OUTER MIRROR SWITCH ASSEMBLY
Remove the outer mirror switch assembly Click here.
Inspect the outer mirror switch assembly Click here.
| NG |
|
REPLACE OUTER MIRROR SWITCH ASSEMBLY |
| OK |
|
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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Proceed to | Result |
|---|---|
| OK (for LHD) | A |
| OK (for RHD) | B |
| NG | C |
| B |
|
REPLACE PARKING ASSIST ECU Click here |
| C |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| A |
|
REPLACE PARKING ASSIST ECU Click here