NO.8 DISPLAY DOES NOT CHANGE TO THE REAR MOUNT CAMERA IMAGE [CAR-NAVIGATION SYSTEM]

id0903e8945200

8

Display does not change to the rear mount camera image
POSSIBLE CAUSE
•  Rear mount camera malfunction
•  Poor connection of the rear mount camera connector, terminal damage
•  Poor connection of the car-navigation unit connector, terminal damage
•  Open or short circuit in wiring harness between car-navigation unit and rear mount camera
•  Open or short circuit in reverse signal wiring harness
•  Car-navigation unit malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
•  Is the lens of the rear mount camera dirty or view is obstructed?
Yes
Clean the lens of the rear mount camera or remove the obstruction.
No
Go to the next step.
2
•  Does the lens of the rear mount camera have a crack and damage?
Yes
Replace the rear mount camera.
(See REAR MOUNT CAMERA REMOVAL/INSTALLATION.)
No
Go to the next step.
3
•  Turn the ignition switch to the LOCK position.
•  Remove the rear mount camera.
•  Inspect the connection of the rear mount camera connector (4-pin).
•  Disconnect the rear mount camera connector (4-pin).
•  Inspect both the rear mount camera and wiring harness-side connector for poor connection (such as damaged/pulled-out pins, corrosion).
•  Are all the pins normal?
Yes
Go to the next step.
No
If poor connection of rear mount camera connector:
•  Securely connect the rear mount camera connector.
If the rear mount camera connector is wrong:
•  Replace the rear mount camera.
If the wiring harness-side connector is wrong:
•  Repair or replace the pins and/or the connector.
4
•  Turn the ignition switch to the LOCK position.
•  Remove the car-navigation unit.
•  Inspect the connection of the car-navigation unit connector (4-pin).
•  Disconnect the car-navigation unit connector (4-pin).
•  Inspect both the car-navigation unit connector terminal for poor connection (such as damaged/pulled-out pins, corrosion).
•  Are all the pins normal?
Yes
Go to the next step.
No
If poor connection of car-navigation unit connector:
•  Securely connect the car-navigation unit connector.
If the car-navigation unit connector is wrong:
•  Replace the car-navigation unit.
If the wiring harness-side connector is wrong:
•  Repair or replace the pins and/or the connector.
5
•  Inspect the following wiring harnesses between the car-navigation unit and rear mount camera.
―  Terminal 3A (4-pin, POWER)—terminal A (4-pin, POWER)
―  Terminal 3B (4-pin, P-GND)—terminal B (4-pin, P-GND)
―  Terminal 3C (4-pin, V-GND)—terminal C (4-pin, V-GND)
―  Terminal 3D (4-pin, COMPOSITE)—terminal D (4-pin, COMPOSITE)
•  Is there open or short circuit?
Yes
Go to the next step.
No
Inspect the suspect wiring harness.
Repair or replace if necessary.
6
•  Turn the ignition switch to the LOCK position.
•  Remove the car-navigation unit.
•  Disconnect the car-navigation unit connector (24-pin).
•  Turn the ignition switch to ON.
•  Shift the selector lever in R range.
•  Inspect the voltage between the car-navigation unit terminals 1M (24-pin, REV) and 1W (24-pin, GND).
•  Is the voltage B+?
Yes
Replace the rear mount camera, then inspect generating of malfunction symptom.
(See REAR MOUNT CAMERA REMOVAL/INSTALLATION.)
Even if it exchanges rear mount camera, when a fault phenomenon occurs:
•  Replace the car-navigation unit.
•  Reinspect the malfunction symptom, then repeat from Step 1 if malfunction recurs.
No
Inspect the suspect wiring harness (reverse signal).
Repair or replace if necessary.