| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000010YUA |
| Model Year Start: 2017 | Model: Sienna | Prod Date Range: [08/2016 - 11/2017] |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: Reverse Signal Circuit; 2017 MY Sienna [08/2016 - 11/2017] | ||
|
Reverse Signal Circuit |
DESCRIPTION
The radio and display receiver assembly receives a reverse signal from the park/neutral position switch.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK VEHICLE SIGNAL (OPERATION CHECK) |
|
(a) Enter the "Vehicle Signal Check Mode" screen. [Refer to Check Vehicle Signal in Operation Check (See page
|
|
![2016 - 2017 MY Sienna [12/2015 - 11/2017]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: OPERATION CHECK](/t3Portal/stylegraphics/info.gif)
(b) Check that the display changes between ON and OFF according to the shift lever position.
HINT:
This display is updated once per second. As a result, it is normal for the display to lag behind the actual shift lever position.
OK:
|
Shift Lever Position |
Display |
|---|---|
|
R |
ON |
|
Except R |
OFF |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
|
2. |
CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
(a) Disconnect the radio and display receiver assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
D155-2 (REV) - Body ground |
Ignition switch ON, shift lever in R |
7.5 to 14 V |
|
D155-2 (REV) - Body ground |
Ignition switch ON, shift lever not in R |
Below 1 V |
| OK |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH) |
(a) Disconnect the D155 radio and display receiver assembly connector.
(b) Disconnect the B3 park/neutral position switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D155-2 (REV) - B3-2 (RL) |
Always |
Below 1 Ω |
|
D155-2 (REV) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - BATTERY) |
|
(a) Disconnect the park/neutral position switch connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
B66-1 (RB) - Body ground |
Ignition switch ON |
11 to 14 V |
Result
|
Result |
Proceed to |
|---|---|
|
OK (for UA80E) |
A |
|
OK (for UA80F) |
B |
|
NG |
C |
| A |
|
| B |
|
| C |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|