PANORAMIC VIEW MONITOR SYSTEM, Diagnostic DTC:C1681 and C1682
| DTC Code | DTC Name |
|---|---|
| C1681 | Front Camera Feedback Malfunction |
| C1682 | Front Camera Current Malfunction |
DESCRIPTION
DTC C1681 is stored if the parking assist ECU judges as a result of its self check that a synchronization problem is occurring in the image signal sent from the front television camera assembly to the parking assist ECU.
DTC C1682 is stored if the parking assist ECU judges as a result of its self check that there is a problem with the current supplied from the front television camera assembly connected to the parking assist ECU.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
C1681 |
Front Camera Feedback Malfunction |
Open or short in the front television camera signal circuit |
|
C1682 |
Front Camera Current Malfunction |
Front television camera power supply failure |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
When "!" mark is displayed on the multi-display after the cable is disconnected from the negative (-) battery terminal, correct the steering angle neutral point.
Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as panoramic view monitor system may be needed.
PROCEDURE
CHECK FOR DTC
Clear the DTCs.
Chassis > Panoramic View Monitor > Clear DTCs
Check for DTCs.
Chassis > Panoramic View Monitor > Trouble Codes
OK
DTCs C1681 and C1682 are not output.
Result
Proceed to
OK
NG
CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT TELEVISION CAMERA ASSEMBLY)
Disconnect the a1 parking assist ECU connector.
Disconnect the Z5 front television camera assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
a1-15 (BCB+) - Z5-6 (BCB+)
Always
Below 1 Ω
a1-13 (BCV+) - Z5-3 (BCV+)
Always
Below 1 Ω
a1-14 (BCV-) - Z5-2 (BCV-)
Always
Below 1 Ω
a1-27 (BGND) - Z5-5 (BGND)
Always
Below 1 Ω
a1-15 (BCB+) or Z5-6 (BCB+) - Body ground
Always
10 kΩ or higher
a1-13 (BCV+) or Z5-3 (BCV+) - Body ground
Always
10 kΩ or higher
a1-14 (BCV-) or Z5-2 (BCV-) - Body ground
Always
10 kΩ or higher
a1-27 (BGND) or Z5-5 (BGND) - Body ground
Always
10 kΩ or higher
Result
Proceed to
OK
NG
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK PARKING ASSIST ECU (BCB+, BGND)
-
*a
Component with harness connected
(Parking Assist ECU)
Remove the parking assist ECU with the connector still connected.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
a1-27 (BGND) - Body ground
Always
Below 1 Ω
Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection
Switch Condition
Specified Condition
a1-15 (BCB+) - a1-27 (BGND)
Engine switch on (IG)
5.5 to 7.05 V
Result
Proceed to
OK
NG
-
CHECK FRONT TELEVISION CAMERA ASSEMBLY
Remove the parking assist ECU with the connector still connected.
*a
Component with harness connected
(Parking Assist ECU)
*b
Waveform 1
*c
Waveform 2
*d
Synchronization Signal
*e
Video Waveform
-
-
Using an oscilloscope, check the waveform.
Tip:A waterproof connector is used for the front television camera assembly. Therefore, inspect the waveform at the parking assist ECU with the connector connected.
The video waveform changes according to the image sent by the front television camera assembly.
OK
Waveform is as shown in the illustration.
Table 1. Measurement Condition Item
Content
Terminal No. (Symbol)
a1-13 (BCV+) - a1-27 (BGND)
Tool Setting
200 mV/DIV., 50 μs/DIV.
Condition
Waveform 1: Engine switch on (IG), telltale light assembly (panoramic view monitor main switch) on, camera lens not covered, displaying image
Waveform 2: Engine switch on (IG), telltale light assembly (panoramic view monitor main switch) on, camera lens covered, blacking out screen
Result
Proceed to
OK
NG