note | When diagnosis code No.B254B is set, the segment, which corresponds to a defective camera, is
displayed in blue. |
(1)Disconnect the all camera connectors, and measure at the wiring harness side. |
(2)Turn the ignition switch to "ON" position, and then check the power supply lines
to a relevant camera. ..... Check the voltage between the front-view camera connector (ACCN terminal) and body earth. OK: 5.5 - 6.5 V ..... Check the voltage between the rear-view camera connector (ACCR terminal) and body earth. OK: 5.5 - 6.5 V ..... Check the voltage between the side-view camera (LH) connector (ACCS terminal) and body earth. OK: 5.5 - 6.5 V ..... Check the voltage between the side-view camera (RH) connector (ACCY terminal) and body earth. OK: 5.5 - 6.5 V |
(1)Disconnect the all camera connectors and camera-ECU connector, and measure at the wiring
harness side. ..... Measure the resistance between the front-view camera connector (ACCN terminal) and body earth. OK: No continuity ..... Measure the resistance between the front-view camera connector (ACCN terminal) and camera-ECU connector (except ACCN terminal). OK: No continuity ..... Measure the resistance between the rear-view camera connector (ACCR terminal) and body earth. OK: No continuity ..... Measure the resistance between the rear-view camera connector (ACCR terminal) and camera-ECU connector (except ACCR terminal). OK: No continuity ..... Measure the resistance between the side-view camera (LH) connector (ACCS terminal) and body earth. OK: No continuity ..... Measure the resistance between the side-view camera (LH) connector (ACCS terminal) and camera-ECU connector (except ACCS terminal). OK: No continuity ..... Measure the resistance between the side-view camera (RH) connector (ACCY terminal) and body earth. OK: No continuity ..... Measure the resistance between the side-view camera (RH) connector (ACCY terminal) and camera-ECU connector (except ACCY terminal). OK: No continuity |
(1)Connect camera connectors one after the other, and then measure at the power supply
terminal of the corresponding camera-ECU connector by backprobing. |
(2)Turn the ignition switch to "ON" position. |
(3)Connect the front-view camera connector. |
(4)Check the voltage between camera-ECU connector (ACCN terminal) and body earth. OK: 5.5 - 6.5 V |
(5)Connect the rear-view camera connector. |
(6)Check the voltage between camera-ECU connector (ACCR terminal) and body earth. OK: 5.5 - 6.5 V |
(7)Connect the side-view camera (LH) connector. |
(8)Check the voltage between camera-ECU connector (ACCS terminal) and body earth. OK: 5.5 - 6.5 V |
(9)Connect the side-view camera (RH) connector. |
(10)Check the voltage between camera-ECU connector (ACCY terminal) and body earth. OK: 5.5 - 6.5 V |
(1)Erase the diagnosis code. |
(2)Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position. |
(3)Check if the diagnosis code is set. |