SYSTEM DESCRIPTION
- GENERAL To assist the driver with parking the vehicle by displaying an image of the area behind the vehicle, this system has a television camera mounted on the luggage compartment door. The system displays the image on the multi-display. This system consists of the following components: Multi-display Television camera This system is equipped with a self-diagnosis system, which is operated on a designated window that appears on the display panel, just as in the navigation system.
- FUNCTION OF COMPONENTS The multi-display controls the system by using information from the following components: FUNCTION OF COMPONENTS Item Function Television Camera Assembly Mounted on luggage compartment door to transmit an image of area behind vehicle to multi-display. Color video camera that uses CCD (Charge Coupled Device) and wide-angle lens. Multi-display Receives video signals, which contain an image of area behind vehicle taken with television camera assembly. Multi-display effects control of system by receiving shift position signal from BK/UP LP relay. Displays rear view monitor image on display panel. BK/UP LP Relay Transmits a reverse shift position signal to multi-display.
- OPERATION EXPLANATION The BK/UP LP relay sends an R position signal to the multi-display when the shift lever is moved to the R position. After receiving the R position signal, the multi-display switches from the navigation system to the rear view monitor system.
- NOTES FOR REAR VIEW MONITOR Notes for the rear view monitor. The rear view monitor may not function properly if subjected to a severe impact by any hard object. Do not "scrub" the lens of the camera because it is made of resin. Scrubbing it may scratch the cover and affect the image. Prevent organic solvents, waxes, bond removing solvents, or glass coating from adhering to the cover. If anything adheres to the cover, clean it off immediately and wash the lens with water. Exposing the camera to a sudden temperature change may affect proper functioning of the camera. A clear image may not appear if the camera is dirty with snow, mud, etc. In that case, wash it with water and wipe off the lens. Use a detergent to remove dirt if necessary. Images are difficult to discern even in normal conditions if: The camera lens is frosted over (the image immediately after turning the power switch ON (IG) may be blurred or darker than normal). A strong beam of light, such as a sunbeam or headlight, hits the camera. It is too dark around the camera (at night, etc.). The ambient temperature around the camera is either too high or too low. HINT: When a strong light, such as a sunbeam reflected off the vehicle's body, hits the camera, the image may be blurred. This is called the "SMEAR" phenomenon, peculiar to the CCD camera.
DESCRIPTION
The multi-display receives a reverse signal from the BK/UP LP relay (engine room relay block).
Reverse Signal Circuit - Wiring Diagram. Scheme 1
Scheme 2
Scheme 3
- CHECK BACK-UP LIGHT Move the shift lever to the R position and check if the back-up light comes on. OK: The back-up light comes on. NG: GO TO «LIGHTING SYSTEM»(ref-289880-S25103182712008070800000) OK: Go to next step
- CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE) Enter the "Display Check" mode (Vehicle Signal Check Mode) (see «DISPLAY CHECK MODE»(ref-289889-S30875111272008070800000) ). Check that the display changes between ON and OFF according to the shift lever operation (P and R). OK VEHICLE SIGNAL (DISPLAY CHECK MODE) Shift Lever Position Display R ON Except R OFF (Scheme 2): Display - Vehicle Signal Check Mode HINT: This display is updated once per second. As a result, it is normal for the display to lag behind the actual change in the switch. OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to next step
- CHECK MULTI-DISPLAY Disconnect the M13 display connector. Measure the voltage of the display. Standard voltage MULTI-DISPLAY Tester Connection Condition Specified Condition M13-21 (REV) - Body ground Power switch is ON (IG). Shift lever is moved to R position. 10 to 14 V M13-21 (REV) - Body ground Power switch is ON (IG). Shift lever is moved to any position except R. Below 1 V (Scheme 3): Identifying M13 Display Connector OK: REPLACE MULTI DISPLAY ASSEMBLY NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (MULTI-DISPLAY - ENGINE ROOM RELAY BLOCK (BK/UP LP RELAY))
This is the display signal circuit of the television camera.
Multi-Display And Television Camera Assembly Signal Circuit - Wiring Diagram. Scheme 4
Scheme 5
Scheme 6
Scheme 7
- CHECK TELEVISION CAMERA ASSEMBLY Check the waveform of the camera using an oscilloscope. (Scheme 5): Identifying T13 Camera Connector Terminals OK: Waveform is as shown in the illustration. TELEVISION CAMERA ASSEMBLY Item Content Tester Connection CV+ (T13-2) - CV - (T13-1) Tool Setting 0.2 V/DIV., 0.2 μsec./DiV. Condition Power switch ON (IG), shift lever R position (Scheme 6): Television Camera Assembly Waveform Oscilloscope Pulse NG: REPAIR TELEVISION CAMERA ASSEMBLY OK: Go to next step
- CHECK WIRE HARNESS (MULTI-DISPLAY - TELEVISION CAMERA) Disconnect the M14 display connector, Disconnect the T13 camera connector, Measure the resistance of the wire harness side connectors. Standard resistance MULTI-DISPLAY - TELEVISION CAMERA Tester Connection Specified Condition M14-29 (CA+) - T13-4 (CB+) Below 1 ohms M14-30 (CGND) - T13-3 (CGND) Below 1 ohms M14-27 (V+) - T13-2 (CV+) Below 1 ohms M14-28 (V-) - T13-1 (CV-) Below 1 ohms M14-29 (CA+) - Body ground 10 kohms or higher M14-27 (V+) - Body ground 10 kohms or higher M14-28 (V-) - Body ground 10 kohms or higher (Scheme 7): Identifying M14 Display Connector NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE
Identifying Television Camera Components. Scheme 8
Scheme 9
Scheme 10
- REMOVE BACK DOOR LOWER TRIM BOARD ASSEMBLY (See «DISASSEMBLY»(ref-289862-S01018527242008070800000) )
- REMOVE BACK DOOR OUTSIDE GARNISH (See «REMOVAL»(ref-289868-S04240405192008070800000) )
- REMOVE TELEVISION CAMERA ASSEMBLY Disconnect the television camera connector. Remove the 2 screws. (Scheme 9): Locating Television Camera Connector Screws Disengage the 2 claws and remove the television camera assembly. (Scheme 10): Identifying Television Camera Assembly Claws