This DTC 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 No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from | Priority |
|---|---|---|---|---|---|
| C168187 | Front Camera Image Signal Missing Message | Front television camera power supply failure | ·
Harness or connector ·
Front television camera assembly ·
Parking assist ECU |
Circumference Monitoring Camera Control Module | A |
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.
Disconnect the N62 parking assist ECU connector.
Disconnect the B12 front television camera assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N62-27 (BCB+) - B12-6 (BCB+) | Always | Below 1 Ω |
| N62-29 (BCV+) - B12-3 (BCV+) | Always | Below 1 Ω |
| N62-30 (BCV-) - B12-2 (BCV-) | Always | Below 1 Ω |
| N62-28 (BGND) - B12-5 (BGND) | Always | Below 1 Ω |
| N62-27 (BCB+) or B12-6 (BCB+) - Body ground | Always | 10 kΩ or higher |
| N62-29 (BCV+) or B12-3 (BCV+) - Body ground | Always | 10 kΩ or higher |
| N62-30 (BCV-) or B12-2 (BCV-) - Body ground | Always | 10 kΩ or higher |
| N62-28 (BGND) or B12-5 (BGND) - Body ground | Always | 10 kΩ or higher |
| N62-31 (SGND) - Body ground | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the N62 parking assist ECU connector.
| *a | Component without harness connected
(Parking Assist ECU) |
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N62-28 (BGND) - Body ground | Always | Below 1 Ω |
| N62-30 (BCV-) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Component with harness connected
(Parking Assist ECU) |
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N62-28 (BGND) - Body ground | Always | Below 1 Ω |
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| N62-27 (BCB+) - N62-28 (BGND) | Ignition switch ON | 5.5 to 7.05 V |
| N62-27 (BCB+) - N62-28 (BGND) | Ignition switch off | Below 1 V |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Using an oscilloscope, check the waveform of the front television camera assembly.
A waterproof connector is used for the front television camera assembly. Therefore, inspect the waveform at the parking assist ECU with the connector connected.
| *a | Component with harness connected
(Parking Assist ECU) |
*b | Waveform 1 (camera lens not covered, displaying an image) |
| *c | Waveform 2 (camera lens covered, blacking out the screen) | *d | Synchronization Signal |
| *e | Video Waveform | - | - |
The video waveform changes according to the image sent by the front television camera assembly.
The video waveform is constantly output when the ignition switch is ACC.
| Item | Content |
|---|---|
| Terminal Connection | N62-29 (BCV+) - N62-28 (BGND) |
| Tool Setting | 200 mV/DIV., 50 μsec./DIV. |
| Condition | Ignition switch ON, panoramic view monitor switch (combination switch assembly) on |
Waveform is similar to that shown in the illustration.
| Proceed to |
|---|
| OK |
| NG |
OK
NG