Rear Mount Camera Inspection

WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the following parts:
1. Liftgate upper trim (See LIFTGATE UPPER TRIM REMOVAL/INSTALLATION .)
2. Liftgate side trim (See LIFTGATE SIDE TRIM REMOVAL/INSTALLATION .)
3. Liftgate recess cover (See LIFTGATE RECESS REMOVAL/INSTALLATION .)
4. Power liftgate (PLG) rear switch (with power liftgate) (See POWER LIFTGATE (PLG) REAR SWITCH REMOVAL/INSTALLATION .)
5. Liftgate lower trim (See LIFTGATE LOWER TRIM REMOVAL/INSTALLATION .)
6. Rear finisher (See REAR FINISHER REMOVAL .) (See REAR FINISHER INSTALLATION .)
7. 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: Connecting Four Dry Cell Batteries In Series
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 Positive Pole Of Dry Cell Battery To Rear Mount Camera Terminal A And Negative Pole To Terminal E
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 Waveform
Courtesy of MAZDA MOTORS CORP.
If the voltage is not as shown in the figure, replace the rear mount camera.