DESCRIPTION
This DTC is stored if the navigation receiver assembly*1 or radio and display receiver assembly*2 judges that the signals or signal lines between the navigation receiver assembly*1 or radio and display receiver assembly*2, and the rear television camera assembly are not normal as a result of its self check.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1622 |
Open or short in the rear television camera assembly signal circuit |
|
*1: for Navigation System
*2: for Audio and Visual System
WIRING DIAGRAM
PROCEDURE
1. |
CONFIRM MODEL |
(a) Choose the model to be inspected.
Result |
Proceed to |
---|---|
for Navigation System |
A |
for Audio and Visual System |
B |
B |
GO TO STEP 5 |
|
2. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY) |
(a) Disconnect the E51 navigation receiver assembly connector.
(b) Disconnect the R21 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 |
---|---|---|
E51-11 (CA+) - R21-6 (CB+) |
Always |
Below 1 Ω |
E51-12 (V+) - R21-3 (CV+) |
Always |
Below 1 Ω |
E51-24 (V-) - R21-2 (CV-) |
Always |
Below 1 Ω |
E51-23 (CGND) - R21-5 (CGND) |
Always |
Below 1 Ω |
E51-11 (CA+) - Body ground |
Always |
10 kΩ or higher |
E51-12 (V+) - Body ground |
Always |
10 kΩ or higher |
E51-24 (V-) - Body ground |
Always |
10 kΩ or higher |
E51-23 (CGND) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT NAVIGATION RECEIVER ASSEMBLY |
(a) Reconnect the E51 navigation receiver assembly connector.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
|
4. |
INSPECT REAR TELEVISION CAMERA ASSEMBLY |
(a) Reconnect the R21 rear television camera assembly connector.
(b) Using an oscilloscope, check the waveform of the rear television camera assembly.
Text in Illustration
*a |
Component with harness connected (Navigation Receiver Assembly) |
HINT:
A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the navigation receiver assembly with the connector connected.
OK:
Waveform is similar to that shown in the illustration.
Item |
Content |
---|---|
Measurement terminal |
E51-12 (V+) - E38-7 (GND1) |
Measurement setting |
200 mV/DIV., 50 μs./DIV. |
Condition |
Ignition switch ON, shift lever in R |
HINT:
*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 |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
NG |
REPLACE REAR TELEVISION CAMERA ASSEMBLY |
5. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY) |
(a) Disconnect the E52 radio and display receiver assembly connector.
(b) Disconnect the R21 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 |
---|---|---|
E52-11 (CA+) - R21-6 (CB+) |
Always |
Below 1 Ω |
E52-12 (V+) - R21-3 (CV+) |
Always |
Below 1 Ω |
E52-24 (V-) - R21-2 (CV-) |
Always |
Below 1 Ω |
E52-23 (CGND) - R21-5 (CGND) |
Always |
Below 1 Ω |
E52-11 (CA+) - Body ground |
Always |
10 kΩ or higher |
E52-12 (V+) - Body ground |
Always |
10 kΩ or higher |
E52-24 (V-) - Body ground |
Always |
10 kΩ or higher |
E52-23 (CGND) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. |
INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY |
(a) Reconnect the E52 radio and display receiver assembly connector.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
|
7. |
INSPECT REAR TELEVISION CAMERA ASSEMBLY |
(a) Reconnect the R21 rear television camera assembly connector.
(b) Using an oscilloscope, check the waveform of the rear television camera assembly.
Text in Illustration
*a |
Component with harness connected (Radio and Display Receiver Assembly) |
HINT:
A waterproof connector is used for the rear 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 |
E52-12 (V+) - E4-7 (GND1) |
Measurement setting |
200 mV/DIV., 50 μs./DIV. |
Condition |
Ignition switch ON, shift lever in R |
HINT:
*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 |
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
NG |
REPLACE REAR TELEVISION CAMERA ASSEMBLY |
Precaution
PRECAUTION
1. INITIALIZATION
NOTICE:
Perform the Registration (VIN registration) when replacing the ECM (See page
).
HINT:
Reset memory or initialization cannot be completed by only disconnecting and
reconnecting the cable of the negative (-) battery ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL FRONT BLOWER MOTOR SUB-ASSEMBLY
(a) Install the front blower motor sub-assembly with the 3 screws.
2. INSTALL AIR INLET SERVO MOTOR SUB-ASSEMBLY
(a) Insta ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful bec ...