| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018J6L |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM: "CHK" message(s) are displayed on the SIGNAL CHECK screen.; 2018 - 2020 MY Sienna [11/2017 - ] | ||
|
"CHK" message(s) are displayed on the SIGNAL CHECK screen. |
DESCRIPTION
On the SIGNAL CHECK screen, it is possible to check if the signals sent to the parking assist ECU are normal.
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![2018 - 2020 MY Sienna [11/2017 - ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
HINT:
- 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 |
|
SHIFT |
Vehicle wire harness |
Shift position switch signal |
DTC is not output |
Park/neutral position switch |
|
CAMERA SW |
Vehicle wire harness |
Pattern select switch assembly signal input state |
DTC is not output |
Pattern select switch assembly |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When "!" is displayed on the radio and display receiver assembly after the cable is disconnected from the negative (-) battery terminal, correct the steering angle neutral point.
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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.
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PROCEDURE
|
1. |
CHECK DISPLAY CHECK MODE |
|
(a) Check which items display on the signal check screen. |
|
|
Result |
Proceed to |
|---|---|
|
"CAMERA SW" displays "CHK" (red) |
A |
|
"CAN" displays "CHK" (red) |
B |
|
"SHIFT" displays "CHK" (red) |
C |
| B |
|
GO TO CAN COMMUNICATION SYSTEM
|
| C |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY - PARKING ASSIST ECU AND BODY GROUND) |
(a) Disconnect the D188 pattern select switch assembly connector.
(b) Disconnect the D163 parking assist ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D163-15 (BLSW) - D188-8 (D) |
Always |
Below 1 Ω |
|
D188-5 (E) - Body ground |
Always |
Below 1 Ω |
|
D163-15 (BLSW) or D188-8 (D) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT PATTERN SELECT SWITCH ASSEMBLY |
(a) Remove the pattern select switch assembly.
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(b) Inspect the pattern select switch assembly.
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| OK |
|
| NG |
|
|
4. |
CHECK BACK-UP LIGHT |
(a) Check that the back-up light comes on.
OK:
The back-up light comes on.
| NG |
|
|
|
5. |
CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL) |
|
(a) Disconnect the parking assist ECU connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D163-14 (REV) - Body ground |
Engine switch on (IG), shift lever in R |
11 to 14 V |
|
D163-14 (REV) - Body ground |
Engine switch on (IG), shift lever not in R |
Below 1 V |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|