DTC Code | DTC Name |
---|---|
C1621 | Back Camera Power Supply Failure |
C1622 | Open or Short Circuit in Back Camera Signal |
DESCRIPTION
These DTCs are stored if the multi-media module receiver assembly judges that the signals or lines between the multi-media module receiver assembly and the rear television camera assembly are not normal as a result of its self check.
DTC Code | DTC Detection Condition | Trouble Area |
---|---|---|
C1621 | Rear television camera power supply failure |
|
C1622 | Open or short in the rear television camera signal circuit |
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
When "System initializing" is displayed on the multi-display after disconnecting the cable from the negative (-) battery terminal, correct the steering angle neutral point Click here.
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 Click here.
PROCEDURE
CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - REAR TELEVISION CAMERA ASSEMBLY AND BODY GROUND)
Disconnect the N68 multi-media module receiver assembly connector.
Disconnect the a5 rear television camera assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
OK |
CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY (CA+, CGND)
*a | Component with harness connected (Multi-media Module Receiver Assembly) |
Reconnect the multi-media module receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||
---|---|---|---|---|---|---|
|
Measure the voltage according to the value(s) in the table below.
Standard Voltage | ||||||
---|---|---|---|---|---|---|
|
NG |
REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here |
OK |
CHECK REAR TELEVISION CAMERA ASSEMBLY (CV+, CGND)
Reconnect the a5 rear television camera assembly connector.
*a | Component with harness connected (Multi-media Module Receiver Assembly) |
*b | Waveform A |
*c | Waveform A | *d | Synchronization Signal |
*e | Video Waveform | - | - |
Check the waveform of the rear television camera assembly using an oscilloscope.
Tech Tips
A waterproof connector is used for the rear television camera assembly. Therefore, inspect the waveform at the multi-media module receiver assembly with the connector connected.
Item | Content |
---|---|
Terminal No. (Symbol) | N68-18 (V+) - N68-40 (CGND) |
Tool Setting | 0.2 V/DIV., 50 μs/DIV. |
Condition | Waveform A: Engine starts, shift lever in R (camera lens is not covered, displaying an image) Waveform B: Engine starts, shift lever in R (camera lens is covered, blacking out the screen) |
Tech Tips
The video waveform changes according to the image sent by the rear television camera assembly.
OK |
---|
Waveform is as shown in the illustration. |
NG |
REPLACE REAR TELEVISION CAMERA ASSEMBLY Click here |
OK |
REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here