Lexus NX: Image from Camera for Panoramic View Monitor is Abnormal
DESCRIPTION
The display signal from the rear television camera assembly is transmitted to the multi-display assembly via the parking assist ECU.
WIRING DIAGRAM
w/o Seat Memory
w/ Seat Memory
CAUTION / NOTICE / HINT
NOTICE:
-
When "!" mark is displayed on the parking assist ECU after the auxiliary battery terminal has been disconnected, correct the steering angle neutral point.
Click here
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-
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 panoramic view monitor system may be needed.
Click here
HINT:
Images may be unclear even in normal conditions if:- Electrical devices are used in the cabin (noise may occur in the image).
- The camera lens is frosted over (the image immediately after turning the power switch on (IG) may be blurred or darker than normal).
- The camera lens is dirty with snow, mud, etc.
- A strong beam of light, such as a sunbeam or headlight, hits the camera.
- It is too dark around the camera (at night, etc.).
- The ambient temperature around the camera is either too high or too low.
- The vehicle is tilted at a steep angle.
- The television camera assembly lens is scratched.
- The television camera assembly lens has drops of water on it or the humidity is high.
- When the camera is used under fluorescent lights, sodium lights, or mercury lights, etc., the lights and the illuminated area may appear to flicker.
PROCEDURE
| 1. | CHECK PANORAMIC VIEW MONITOR SYSTEM |
(a) Check if the same malfunction occurs when the panoramic view monitor screen is displayed.
| Result | Proceed to |
|---|---|
| Rear view screen is not displayed. | A |
| Front view screen is not displayed. | B |
| Side monitor screen (LH side) is not displayed. | C |
| Side monitor screen (RH side) is not displayed. | D |
| Panoramic view monitor screen is not displayed. | E |
| B | .gif) | GO TO STEP 5 |
| C | | GO TO STEP 8 |
| D | | GO TO STEP 13 |
| E | | GO TO STEP 18 |
|
.gif)
| 2. | CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - REAR TELEVISION CAMERA ASSEMBLY) |
(a) Disconnect the P45 parking assist ECU connector.
(b) Disconnect the Y25 rear television camera assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P45-33 (CB+) - Y25-6 (CB+) | Always | Below 1 Ω |
| P45-29 (CV+) - Y25-3 (CV+) | Always | Below 1 Ω |
| P45-30 (CV-) - Y25-2 (CV-) | Always | Below 1 Ω |
| P45-32 (CGND) - Y25-5 (CGND) | Always | Below 1 Ω |
| P45-31 (SGND) - Body ground | Always | Below 1 Ω |
| P45-33 (CB+) or Y25-6 (CB+) - Body ground | Always | 10 kΩ or higher |
| P45-29 (CV+) or Y25-3 (CV+) - Body ground | Always | 10 kΩ or higher |
| P45-30 (CV-) or Y25-2 (CV-) - Body ground | Always | 10 kΩ or higher |
| P45-32 (CGND) or Y25-5 (CGND) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 3. | CHECK PARKING ASSIST ECU (CB+, CGND) |
| (a) Disconnect the rear television camera assembly. |
|
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(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P45-32 (CGND) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| P45-33 (CB+) - P45-32 (CGND) | Power switch on (IG) | 5.5 to 7.05 V |
| P45-33 (CB+) - P45-32 (CGND) | Power switch off | Below 1 V |
| NG | | REPLACE PARKING ASSIST ECU |
|
| 4. | CHECK REAR TELEVISION CAMERA ASSEMBLY (CV+, CGND) |
(a) Remove the parking assist ECU with the connector still connected.
(b) Using an oscilloscope, check the waveform of the rear television camera assembly.
HINT:
A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the parking assist ECU with the connector connected.
| *a | Component with harness connected (Parking Assist ECU) | *b | Waveform 1 (camera lens not covered, displaying an image) |
| *c | Waveform 2 (camera lens covered, blacking out the screen) | *d | Synchronization Signal |
| *e | Video Waveform | - | - |
HINT:
- The video waveform changes according to the image sent by the rear television camera assembly.
- The video waveform is constantly output when the power switch is on (ACC).
| Item | Content |
|---|---|
| Terminal No. (Symbol) | P45-29 (CV+) - P45-32 (CGND) |
| Tool Setting | 200 mV/DIV., 50 μsec./DIV. |
| Condition | Power switch on (IG), panoramic view monitor switch on |
OK:
Waveform is similar to that shown in the illustration.
| OK | | REPLACE PARKING ASSIST ECU |
| NG | | REPLACE REAR TELEVISION CAMERA ASSEMBLY |
| 5. | CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT TELEVISION CAMERA ASSEMBLY) |
(a) Disconnect the P45 parking assist ECU connector.
(b) Disconnect the B9 front television camera assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P45-15 (BCB+) - B9-6 (BCB+) | Always | Below 1 Ω |
| P45-36 (BCV+) - B9-3 (BCV+) | Always | Below 1 Ω |
| P45-13 (BCV-) - B9-2 (BCV-) | Always | Below 1 Ω |
| P45-37 (BGND) - B9-5 (BGND) | Always | Below 1 Ω |
| P45-14 (SGND) - Body ground | Always | Below 1 Ω |
| P45-15 (BCB+) or B9-6 (BCB+) - Body ground | Always | 10 kΩ or higher |
| P45-36 (BCV+) or B9-3 (BCV+) - Body ground | Always | 10 kΩ or higher |
| P45-13 (BCV-) or B9-2 (BCV-) - Body ground | Always | 10 kΩ or higher |
| P45-37 (BGND) or B9-5 (BGND) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 6. | CHECK PARKING ASSIST ECU (BCB+, BGND) |
| (a) Disconnect the front television camera assembly connector. |
|
.png)
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P45-37 (BGND) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| P45-15 (BCB+) - P45-37 (BGND) | Power switch on (IG) | 5.5 to 7.05 V |
| P45-15 (BCB+) - P45-37 (BGND) | Power switch off | Below 1 V |
| NG | | REPLACE PARKING ASSIST ECU |
|
| 7. | CHECK FRONT TELEVISION CAMERA ASSEMBLY |
(a) Remove the parking assist ECU with the connector still connected.
(b) Using an oscilloscope, check the waveform of the front television camera assembly.
HINT:
A waterproof connector is used for the front television camera assembly. Therefore, inspect the waveform at the parking assist ECU with the connector connected.
| *a | Component with harness connected (Parking Assist ECU) | *b | Waveform 1 (camera lens not covered, displaying an image) |
| *c | Waveform 2 (camera lens covered, blacking out the screen) | *d | Synchronization Signal |
| *e | Video Waveform | - | - |
HINT:
- The video waveform changes according to the image sent by the front television camera assembly.
- The video waveform is constantly output when the power switch is on (ACC).
| Item | Content |
|---|---|
| Terminal No. (Symbol) | P45-36 (BCV+) - P45-37 (BGND) |
| Tool Setting | 200 mV/DIV., 50 μsec./DIV. |
| Condition | Power switch on (IG), panoramic view monitor switch on |
OK:
Waveform is similar to that shown in the illustration.
| OK | | REPLACE PARKING ASSIST ECU |
| NG | | REPLACE FRONT TELEVISION CAMERA ASSEMBLY |
| 8. | CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY LH) |
(a) Disconnect the P45 parking assist ECU connector.
(b) Disconnect the M11*1 or M15*2 outer rear view mirror assembly LH connector.
- *1: w/o Seat Memory
- *2: w/ Seat Memory
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
w/o Seat Memory| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P45-12 (LCB+) - M11-5 (LCB+) | Always | Below 1 Ω |
| P45-10 (LCV+) - M11-6 (LCV+) | Always | Below 1 Ω |
| P45-34 (LCV-) - M11-14 (LCV-) | Always | Below 1 Ω |
| P45-35 (LGND) - M11-13 (LGND) | Always | Below 1 Ω |
| P45-12 (LCB+) or M11-5 (LCB+) - Body ground | Always | 10 kΩ or higher |
| P45-10 (LCV+) or M11-6 (LCV+) - Body ground | Always | 10 kΩ or higher |
| P45-34 (LCV-) or M11-14 (LCV-) - Body ground | Always | 10 kΩ or higher |
| P45-35 (LGND) or M11-13 (LGND) - Body ground | Always | 10 kΩ or higher |
| P45-35 (LGND) - Body ground | Always | 10 kΩ or higher |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P45-12 (LCB+) - M15-2 (LCB+) | Always | Below 1 Ω |
| P45-10 (LCV+) - M15-7 (LCV+) | Always | Below 1 Ω |
| P45-34 (LCV-) - M15-6 (LCV-) | Always | Below 1 Ω |
| P45-35 (LGND) - M15-1 (LGND) | Always | Below 1 Ω |
| P45-12 (LCB+) or M15-2 (LCB+) - Body ground | Always | 10 kΩ or higher |
| P45-10 (LCV+) or M15-7 (LCV+) - Body ground | Always | 10 kΩ or higher |
| P45-34 (LCV-) or M15-6 (LCV-) - Body ground | Always | 10 kΩ or higher |
| P45-35 (LGND) or M15-1 (LGND) - Body ground | Always | 10 kΩ or higher |
| P45-35 (LGND) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 9. | CHECK PARKING ASSIST ECU (LCB+, LGND) |
| (a) Disconnect the outer rear view mirror assembly LH connector. |
|
.png)
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P45-35 (LGND) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| P45-12 (LCB+) - P45-35 (LGND) | Power switch on (IG) | 5.5 to 7.05 V |
| P45-12 (LCB+) - P45-35 (LGND) | Power switch off | Below 1 V |
| NG | | REPLACE PARKING ASSIST ECU |
|
| 10. | CHECK SIDE TELEVISION CAMERA ASSEMBLY LH |
(a) Remove the parking assist ECU with the connector still connected.
(b) Using an oscilloscope, check the waveform of the side television camera assembly LH.
HINT:
A waterproof connector is used for the side television camera assembly LH. Therefore, inspect the waveform at the parking assist ECU with the connector connected.
| *a | Component with harness connected (Parking Assist ECU) | *b | Waveform 1 (camera lens not covered, displaying an image) |
| *c | Waveform 2 (camera lens covered, blacking out the screen) | *d | Synchronization Signal |
| *e | Video Waveform | - | - |
HINT:
- The video waveform changes according to the image sent by the side television camera assembly LH.
- The video waveform is constantly output when the power switch is on (ACC).
| Item | Content |
|---|---|
| Tester Connection | P45-10 (LCV+) - P45-35 (LGND) |
| Tool Setting | 200 mV/DIV., 50 μsec./DIV. |
| Condition | Power switch on (IG), panoramic view monitor switch on |
OK:
Waveform is similar to that shown in illustration.
| OK | | REPLACE PARKING ASSIST ECU |
|
| 11. | INSPECT OUTER MIRROR RETRACTOR LH |
| (a) Remove the outer mirror retractor LH. Click here |
|
.png)
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
w/o Seat Memory| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A-1 (SCB+) - 5 (LCB+) | Always | Below 1 Ω |
| A-3 (SCV+) - 6 (LCV+) | Always | Below 1 Ω |
| A-7 (SCV-) - 14 (LCV-) | Always | Below 1 Ω |
| A-5 (SGND) - 13 (LGND) | Always | Below 1 Ω |
| A-1 (SCB+) or 5 (LCB+) - Body ground | Always | 10 kΩ or higher |
| A-3 (SCV+) or 6 (LCV+) - Body ground | Always | 10 kΩ or higher |
| A-7 (SCV-) or 14 (LCV-) - Body ground | Always | 10 kΩ or higher |
| A-5 (SGND) or 13 (LGND) - Body ground | Always | 10 kΩ or higher |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A-1 (SCB+) - 2 (LCB+) | Always | Below 1 Ω |
| A-3 (SCV+) - 7 (LCV+) | Always | Below 1 Ω |
| A-7 (SCV-) - 6 (LCV-) | Always | Below 1 Ω |
| A-5 (SGND) - 1 (LGND) | Always | Below 1 Ω |
| A-1 (SCB+) or 2 (LCB+) - Body ground | Always | 10 kΩ or higher |
| A-3 (SCV+) or 7 (LCV+) - Body ground | Always | 10 kΩ or higher |
| A-7 (SCV-) or 6 (LCV-) - Body ground | Always | 10 kΩ or higher |
| A-5 (SGND) or 1 (LGND) - Body ground | Always | 10 kΩ or higher |
| NG | | REPLACE OUTER MIRROR RETRACTOR LH |
|
| 12. | CHECK SIDE TELEVISION CAMERA ASSEMBLY LH |
(a) Replace the side television camera assembly LH with a new or normally functioning one.
Click here
(b) Check if the same malfunction reoccurs when the side monitor screen is displayed.
| Result | Proceed to |
|---|---|
| Malfunction does not reoccur (returns to normal) | A |
| Malfunction reoccurs | B |
| A | | END (SIDE TELEVISION CAMERA ASSEMBLY LH IS DEFECTIVE) |
| B | | REPLACE PARKING ASSIST ECU |
| 13. | CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY RH) |
(a) Disconnect the P45 parking assist ECU connector.
(b) Disconnect the L12*1 or L14*2 outer rear view mirror assembly RH connector.
- *1: w/o Seat Memory
- *2: w/ Seat Memory
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
w/o Seat Memory| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P45-40 (RCB+) - L12-5 (RCB+) | Always | Below 1 Ω |
| P45-38 (RCV+) - L12-6 (RCV+) | Always | Below 1 Ω |
| P45-16 (RCV-) - L12-14 (RCV-) | Always | Below 1 Ω |
| P45-17 (RGND) - L12-13 (RGND) | Always | Below 1 Ω |
| P45-40 (RCB+) or L12-5 (RCB+) - Body ground | Always | 10 kΩ or higher |
| P45-38 (RCV+) or L12-6 (RCV+) - Body ground | Always | 10 kΩ or higher |
| P45-16 (RCV-) or L12-14 (RCV-) - Body ground | Always | 10 kΩ or higher |
| P45-17 (RGND) or L12-13 (RGND) - Body ground | Always | 10 kΩ or higher |
| P45-39 (SGND) - Body ground | Always | 10 kΩ or higher |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P45-40 (RCB+) - L14-2 (RCB+) | Always | Below 1 Ω |
| P45-38 (RCV+) - L14-7 (RCV+) | Always | Below 1 Ω |
| P45-16 (RCV-) - L14-6 (RCV-) | Always | Below 1 Ω |
| P45-17 (RGND) - L14-1 (RGND) | Always | Below 1 Ω |
| P45-40 (RCB+) or L14-2 (RCB+) - Body ground | Always | 10 kΩ or higher |
| P45-38 (RCV+) or L14-7 (RCV+) - Body ground | Always | 10 kΩ or higher |
| P45-16 (RCV-) or L14-6 (RCV-) - Body ground | Always | 10 kΩ or higher |
| P45-17 (RGND) or L14-1 (RGND) - Body ground | Always | 10 kΩ or higher |
| P45-39 (SGND) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 14. | CHECK PARKING ASSIST ECU (RCB+, RGND) |
| (a) Disconnect the outer rear view mirror assembly RH connector. |
|
.png)
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| P45-17 (RGND) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| P45-40 (RCB+) - P45-17 (RGND) | Power switch on (IG) | 5.5 to 7.05 V |
| P45-40 (RCB+) - P45-17 (RGND) | Power switch off | Below 1 V |
| NG | | REPLACE PARKING ASSIST ECU |
|
| 15. | CHECK SIDE TELEVISION CAMERA ASSEMBLY RH |
(a) Remove the parking assist ECU with the connector still connected.
(b) Using an oscilloscope, check the waveform of the side television camera assembly RH.
HINT:
A waterproof connector is used for the side television camera assembly RH. Therefore, inspect the waveform at the parking assist ECU with the connector connected.
| *a | Component with harness connected (Parking Assist ECU) | *b | Waveform 1 (camera lens not covered, displaying an image) |
| *c | Waveform 2 (camera lens covered, blacking out the screen) | *d | Synchronization Signal |
| *e | Video Waveform | - | - |
HINT:
- The video waveform changes according to the image sent by the side television camera assembly RH.
- The video waveform is constantly output when the power switch is on (ACC).
| Item | Content |
|---|---|
| Tester Connection | P45-38 (RCV+) - P45-17 (RGND) |
| Tool Setting | 200 mV/DIV., 50 μsec./DIV. |
| Condition | Power switch on (IG), panoramic view monitor switch on |
OK:
Waveform is similar to that shown in illustration.
| OK | | REPLACE PARKING ASSIST ECU |
|
| 16. | INSPECT OUTER MIRROR RETRACTOR RH |
| (a) Remove the outer mirror retractor RH. Click here |
|
.png)
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
w/o Seat Memory| Tester Connection | Condition | Specified Condition |
|---|---|---|
| B-1 (SCB+) - 5 (RCB+) | Always | Below 1 Ω |
| B-3 (SCV+) - 6 (RCV+) | Always | Below 1 Ω |
| B-7 (SCV-) - 14 (RCV-) | Always | Below 1 Ω |
| B-5 (SGND) - 13 (RGND) | Always | Below 1 Ω |
| B-1 (SCB+) or 5 (RCB+) - Body ground | Always | 10 kΩ or higher |
| B-3 (SCV+) or 6 (RCV+) - Body ground | Always | 10 kΩ or higher |
| B-7 (SCV-) or 14 (RCV-) - Body ground | Always | 10 kΩ or higher |
| B-5 (SGND) or 13 (RGND) - Body ground | Always | 10 kΩ or higher |
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| B-1 (SCB+) - 2 (RCB+) | Always | Below 1 Ω |
| B-3 (SCV+) - 7 (RCV+) | Always | Below 1 Ω |
| B-7 (SCV-) - 6 (RCV-) | Always | Below 1 Ω |
| B-5 (SGND) - 1 (RGND) | Always | Below 1 Ω |
| B-1 (SCB+) or 2 (RCB+) - Body ground | Always | 10 kΩ or higher |
| B-3 (SCV+) or 7 (RCV+) - Body ground | Always | 10 kΩ or higher |
| B-7 (SCV-) or 6 (RCV-) - Body ground | Always | 10 kΩ or higher |
| B-5 (SGND) or 1 (RGND) - Body ground | Always | 10 kΩ or higher |
| NG | | REPLACE OUTER MIRROR RETRACTOR RH |
|
| 17. | CHECK SIDE TELEVISION CAMERA ASSEMBLY RH |
(a) Replace the side television camera assembly RH with a new or normally functioning one.
Click here
(b) Check if the same malfunction reoccurs when the side monitor screen is displayed.
| Result | Proceed to |
|---|---|
| Malfunction does not reoccur (returns to normal) | A |
| Malfunction reoccurs | B |
| A | | END (SIDE TELEVISION CAMERA ASSEMBLY RH IS DEFECTIVE) |
| B | | REPLACE PARKING ASSIST ECU |
| 18. | CHECK HARNESS AND CONNECTOR (GVIF CABLE) |
(a) Replace the GVIF cable with a new or normally functioning one.
(b) Check if the same malfunction reoccurs when the panoramic view monitor screen is displayed.
OK:
Malfunction does not reoccur (returns to normal).
| OK | | END (GVIF CABLE IS DEFECTIVE) |
|
| 19. | CHECK MULTI-DISPLAY ASSEMBLY |
(a) Replace the multi-display assembly with a new or normally functioning one.
Click here
(b) Check if the same malfunction reoccurs when the panoramic view monitor screen is displayed.
OK:
Malfunction does not reoccur (returns to normal).
| OK | | END (MULTI-DISPLAY ASSEMBLY IS DEFECTIVE) |
| NG | | REPLACE PARKING ASSIST ECU |
READ NEXT:
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INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
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