Rear Mount Camera Inspection

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.5] .)
Remove the following parts:
1. Trunk lid recess (See TRUNK LID RECESS REMOVAL/INSTALLATION .)
2. Trunk lid trim (See TRUNK LID TRIM REMOVAL/INSTALLATION .)
3. Rear mount camera (See REAR MOUNT CAMERA REMOVAL/INSTALLATION .)
Prepare four dry cell batteries (1.5 V)
Connect the four dry cell batteries in a series.

Fig 1: Identifying Dry Cell Batteries (Series Connection)
Courtesy of MAZDA MOTORS CORP.
Connect the positive pole of the dry cell battery to rear mount camera terminal A, and the negative pole to terminal E.

Fig 2: Connecting Rear Mount Camera Terminal A With Dry Cell Battery Positive Pole
Courtesy of MAZDA MOTORS CORP.
With the cell batteries being connected, measure the waveform between rear mount camera terminal D and terminal C.
Verify that waveform A shown in the figure is displayed two times or more.

Fig 3: Screen Display - Rear Mount Camera Voltage Waveform
Courtesy of MAZDA MOTORS CORP.
If the voltage is not as shown in the figure, replace the rear mount camera.