Park Assist/monitoring (Except Hybrid): Overview Toyota Highlander II

SYSTEM DESCRIPTION

1. 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 navigation receiver assembly. This system consists of the following components: Navigation receiver assembly Television camera assembly Park/neutral position switch This system is equipped with a self-diagnosis system, which is operated on a dedicated window that appears on the display panel, just as in the navigation system.
2. FUNCTION OF COMPONENTS The navigation receiver assembly controls the system by using information from the following components: ITEM FUNCTION TABLE Item Function Television Camera Assembly Mounted on the luggage compartment door to transmit an image of the area behind the vehicle to the navigation receiver assembly A color video camera that uses a CCD (Charge Coupled Device) and a wide-angle lens Navigation Receiver Assembly Transmits video signals, which contain an image of the area behind the vehicle taken with the television camera assembly Effects control of the system by receiving the shift position signal from the park/neutral position switch Displays the rear view monitor image on the display panel Park/Neutral Position Switch Transmits a reverse shift position signal to the navigation receiver assembly
3. OPERATION EXPLANATION The navigation receiver assembly receives the R position signal from the park/neutral position switch when the shift lever is moved to the R position. After receiving the R position signal, the navigation receiver assembly switches from the navigation system to the rear view monitor system.
4. NOTES FOR REAR VIEW MONITOR Notes for the rear view monitor. The rear view monitor may not function properly if subjected to a severe blow by any hard object. Do not scrub the cover part of the camera (resin made). 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 such material adheres to the cover, clean it off immediately and wash 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 screen is frosted over (the image immediately after turning the ignition 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 navigation receiver assembly receives a reverse signal from the park/neutral position switch.

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1. INSPECT NAVIGATION RECEIVER ASSEMBLY Disconnect navigation receiver assembly connector E5. Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION TABLE Tester Connection Condition Specified Condition E5-5 (REV) - Body ground Ignition switch on (IG) Shift lever R position 10 to 14 V E5-5 (REV) - Body ground Ignition switch on (IG) Shift lever any position except R Below 1 V NG: Go to step 2 OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-290722-S03091425042008071700000) )
2. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH) Disconnect navigation receiver assembly connector E5 and park/neutral position switch connector B5. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE TABLE Tester Connection Condition Specified Condition E5-5 (REV) - B5-1 (RL) Always Below 1 ohms E5-5 (REV) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. INSPECT PARK/NEUTRAL POSITION SWITCH Disconnect park/neutral position switch connector B5. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE TABLE Tester Connection Condition Specified Condition B5-1 (RL) - B5-2 (RB) Shift lever R position Below 1 ohms B5-1 (RL) - B5-2 (RB) Shift lever any position except R 10 kohms or higher Result RESULT REFERENCE TABLE Result Proceed to OK A NG (for U151E) B NG (for U151F) C B: REPLACE PARK/NEUTRAL POSITION SWITCH (for U151E) (See «REMOVAL»(/toyota/highlander/ii-2007-2010/remont/automatic-trans/#automatic-transmission-u151e-except-hybrid) ) C: REPLACE PARK/NEUTRAL POSITION SWITCH (for U151F) (See «REMOVAL»(/toyota/highlander/ii-2007-2010/remont/automatic-trans/#automatic-transmission-u151f-except-hybrid) ) A: REPAIR OR REPLACE HARNESS OR CONNECTOR

This is the display signal circuit of the television camera assembly.

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1. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY TELEVISION CAMERA ASSEMBLY) Disconnect navigation receiver assembly connector E4. Disconnect television camera assembly connector S1. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE TABLE Tester Connection Condition Specified Condition S1-2 (CV+) - E4-22 (V+) Always Below 1 ohms S1-4 (CB+) - E4-24 (CA+) Always Below 1 ohms S1-3 (CGND) - E4-21 (CGND) Always Below 1 ohms S1-1 (CV-) - E4-23 (V-) Always Below 1 ohms S1-2 (CV+) - Body ground Always 10 kohms or higher S1-4 (CB+) - Body ground Always 10 kohms or higher S1-3 (CGND) - Body ground Always 10 kohms or higher S1-1 (CV-) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. INSPECT NAVIGATION RECEIVER ASSEMBLY Reconnect navigation receiver assembly connector E4. Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION TABLE Tester Connection Condition Specified Condition E4-24 (CA+) - E4-21 (CGND) Ignition switch on (IG) Shift lever R position Approx. 6 V NG: REPLACE NAVIGATION RECEIVER ASSEMBLY (See «REMOVAL»(ref-290717-S18035209912008071700000) ) OK: Go to next step
3. INSPECT TELEVISION CAMERA ASSEMBLY Reconnect navigation receiver assembly connector E4 and television camera assembly connector S1. Check the waveform of the television camera assembly using an oscilloscope. OK: Pulses as shown below. WAVEFORM REFERENCE TABLE Item Content Terminal No. (Symbols) S1-2 (CV+) - S1-1 (CV-) Tool 0.2 V/DIV., 0 2 μsec./DIV Condition Ignition switch on (IG), shift lever R position NG: REPLACE TELEVISION CAMERA ASSEMBLY (See «REMOVAL»(ref-290722-S12015141682008071700000) ) OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-290722-S03091425042008071700000) )

1. 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 clock assembly (multi-information display). This system consists of the following components: Clock assembly (multi-information display) Television camera assembly Park/neutral position switch
2. FUNCTION OF COMPONENTS The clock assembly (multi-information display) controls the system by using information from the following components: COMPONENTS FUNCTION TABLE Item Function Television Camera Assembly Mounted on the luggage compartment door to transmit an image of the area behind the vehicle to the clock assembly (multi-information display) A color video camera that uses a CCD (Charge Coupled Device) and a wide-angle lens. Clock Assembly (Multi-Information Display) Transmits video signals, which contain images of the area behind the vehicle taken with the television camera assembly Effects control of the system by receiving the shift position signal from the park/neutral position switch Displays the rear view monitor image on the display panel Park/Neutral Position Switch Transmits a reverse shift position signal to the clock assembly (multi-information display)
3. OPERATION EXPLANATION The clock assembly (multi-information display) receives the R position signal from the park/neutral position switch when the shift lever is moved to the R position. After receiving the R position signal, the clock assembly (multi-information display) switches from except the rear view monitor system to the rear view monitor system.
4. NOTES FOR REAR VIEW MONITOR Notes for the rear view monitor. The rear view monitor may not function properly if subjected to a severe blow by any hard object. Do not scrub the cover part of the camera (resin made). 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 such material adheres to the cover, clean it off immediately and wash 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 screen is frosted over (the image immediately after turning the ignition 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.

The clock assembly receives a reverse signal from the park/neutral position switch.

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1. INSPECT CLOCK ASSEMBLY Disconnect clock assembly connector E11. Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION TABLE Tester Connection Condition Specified Condition E11-2 (REV) - Body ground Ignition switch on (IG) Shift lever R position 10 to 14 V E11-2 (REV) - Body ground Ignition switch on (IG) Shift lever any position except R Below 1 V NG: Go to step 2 OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-290722-S07969727542008071700000) )
2. CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - PARK/NEUTRAL POSITION SWITCH) Disconnect clock assembly connector E11 and park/neutral position switch connector B5. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE TABLE Tester Connection Condition Specified Condition E11-2 (REV) - B5-1 (RL) Always Below 1 ohms E11-2 (REV) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. INSPECT PARK/NEUTRAL POSITION SWITCH Disconnect park/neutral position switch connector B5. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE TABLE Tester Connection Condition Specified Condition B5-1 (RL) - B5-2 (RB) Shift lever R position Below 1 ohms B5-1 (RL) - B5-2 (RB) Shift lever any position except R 10 kohms or higher Result RESULT REFERENCE TABLE Result Proceed to OK A NG (for U151E) B NG (for U151F) C B: REPLACE PARK/NEUTRAL POSITION SWITCH (for U151E) (See «REMOVAL»(/toyota/highlander/ii-2007-2010/remont/automatic-trans/#automatic-transmission-u151e-except-hybrid) ) C: REPLACE PARK/NEUTRAL POSITION SWITCH (for U151F) (See «REMOVAL»(/toyota/highlander/ii-2007-2010/remont/automatic-trans/#automatic-transmission-u151f-except-hybrid) ) A: REPAIR OR REPLACE HARNESS OR CONNECTOR

This is the display signal circuit of the television camera assembly.

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1. CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - TELEVISION CAMERA ASSEMBLY) Disconnect clock assembly connector E11. Disconnect television camera assembly connector S1. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE REFERENCE TABLE Tester Connection Condition Specified Condition S1-2 (CV+) - E11-14 (V+) Always Below 1 ohms S1-3 (CGND) - E11-4 (CGND) Always Below 1 ohms S1-4 (CB+) - E11-12 (CA+) Always Below 1 ohms S1-1 (CV-) - E11-15 (V-) Always Below 1 ohms S1-2 (CV+) - Body ground Always 10 kohms or higher S1-3 (CGND) - Body ground Always 10 kohms or higher S1-4 (CB+) - Body ground Always 10 kohms or higher S1-1 (CV-) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. INSPECT CLOCK ASSEMBLY Reconnect clock assembly connector E11. Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION TABLE Tester Connection Condition Specified Condition E11-12 (CA+) - E11-4 (CGND) Ignition switch on (IG) Shift lever R position Approx. 6 V NG: REPLACE CLOCK ASSEMBLY (See «REMOVAL»(ref-290713-S01536973812008071700000) ) OK: Go to next step
3. INSPECT TELEVISION CAMERA ASSEMBLY Reconnect clock assembly connector E11 and television camera assembly connector S1. Check the waveform of the television camera assembly using an oscilloscope. OK: Pulses as shown below. WAVEFORM REFERENCE TABLE Item Content Terminal No. (Symbols) S1-2 (CV+) - S1-1 (CV-) Tool 0.2 V/DIV, 0 2 μsec./DIV. Condition Ignition switch on (IG), Shift lever R position NG: REPLACE TELEVISION CAMERA ASSEMBLY (See «REMOVAL»(ref-290722-S12015141682008071700000) ) OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See «PROBLEM SYMPTOMS TABLE»(ref-290722-S07969727542008071700000) )

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1. REMOVE BACK WINDOW UPPER TRIM PANEL ASSEMBLY (See «DISASSEMBLY»(ref-290704-S36064020132008071700000) )
2. REMOVE BACK DOOR TRIM COVER LH (w/o Power Back Door) (See «DISASSEMBLY»(ref-290704-S36064020132008071700000) )
3. REMOVE BACK DOOR SERVICE HOLE COVER LH (w/ Power Back Door) (See «DISASSEMBLY»(ref-290704-S36064020132008071700000) )
4. DISCONNECT POWER BACK DOOR ROD (w/ Power Back Door) (See «DISASSEMBLY»(ref-290704-S36064020132008071700000) )
5. REMOVE BACK DOOR TRIM COVER LH (w/ Power Back Door) (See «DISASSEMBLY»(ref-290704-S36064020132008071700000) )
6. REMOVE BACK DOOR TRIM COVER RH (See «DISASSEMBLY»(ref-290704-S36064020132008071700000) )
7. REMOVE BACK DOOR LOCK COVER (for Glass Hatch Type) (See «DISASSEMBLY»(ref-290704-S36064020132008071700000) )
8. REMOVE ASSIST STRAP HOLE COVER (See «DISASSEMBLY»(ref-290704-S36064020132008071700000) )
9. REMOVE ASSIST STRAP ASSEMBLY (See «DISASSEMBLY»(ref-290704-S36064020132008071700000) )
10. REMOVE BACK DOOR TRIM PANEL ASSEMBLY (See «DISASSEMBLY»(ref-290704-S36064020132008071700000) )
11. REMOVE BACK DOOR OUTSIDE GARNISH (See «REMOVAL»(ref-290677-S16852564522008071700000) )
12. REMOVE TELEVISION CAMERA ASSEMBLY Disconnect the television camera connector. Disengage the 2 claws and remove the television camera assembly.

See also:
• REMOVAL
• REMOVAL