| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001C2NA |
| Model Year Start: 2019 | Model: Avalon HV | Prod Date Range: [04/2018 - ] |
| Title: PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM(for HV Model): C1622; Back Camera Disconnected; 2019 - 2022 MY Avalon HV [04/2018 - ] | ||
|
DTC |
C1622 |
Back Camera Disconnected |
DESCRIPTION
This DTC is stored if the radio and display receiver assembly judges that the signals or signal lines between the television camera assembly, and the radio and display receiver assembly are not normal as a result of its self check.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1622 |
Back Camera Disconnected |
Open or short in the television camera assembly signal circuit |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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.
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![2019 - 2022 MY Avalon HV [04/2018 - ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM(for HV Model): CALIBRATION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEVISION CAMERA ASSEMBLY) |
(a) Disconnect the G2 radio and display receiver assembly connector.
(b) Disconnect the P19 television camera assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G2-30 (CA+) - P19-6 (CB+) |
Always |
Below 1 Ω |
|
G2-28 (V+) - P19-3 (CV+) |
Always |
Below 1 Ω |
|
G2-29 (V-) - P19-2 (CV-) |
Always |
Below 1 Ω |
|
G2-27 (CGND) - P19-5 (CGND) |
Always |
Below 1 Ω |
|
G2-26 (CSLD) - Body ground |
Always |
10 kΩ or higher |
|
G2-30 (CA+) or P19-6 (CB+) - Body ground |
Always |
10 kΩ or higher |
|
G2-28 (V+) or P19-3 (CV+) - Body ground |
Always |
10 kΩ or higher |
|
G2-29 (V-) or P19-2 (CV-) - Body ground |
Always |
10 kΩ or higher |
|
G2-27 (CGND) or P19-5 (CGND) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
2. |
INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY |
(a) Reconnect the G2 radio and display receiver assembly connector.
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G2-30 (CA+) - G2-27 (CGND) |
Power switch on (ACC) |
5.5 to 7.05 V |
| NG |
|
|
|
3. |
INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY (V+, GND1) |
(a) Reconnect the P19 television camera assembly connector.
(b) Using an oscilloscope, check the waveform of the television camera assembly.
|
*a |
Component with harness connected (Radio and Display Receiver Assembly) |
HINT:
A waterproof connector is used for the television camera assembly. Therefore, inspect the waveform at the radio and display receiver assembly with the connector connected.
OK:
Waveform is similar to that shown in the illustration.
|
Item |
Content |
|
Measurement terminal |
G2-28 (V+) - G3-1 (GND1) |
|
Measurement setting |
200 mV/DIV., 50 μs./DIV. |
|
Condition |
Power switch on (IG), shift lever in R |
HINT:
- The video waveform changes according to the image sent by the television camera assembly.
- The video waveform is constantly output when the power switch is on (ACC).
|
*a |
Waveform 1 (camera lens is not covered, displaying an image) |
|
*b |
Waveform 2 (camera lens is covered, blacking out the screen) |
|
*c |
Synchronization Signal |
|
*d |
Video Waveform |
| OK |
|
| NG |
|
|
|