Park Assist/monitoring (Except Hybrid): Other — Park Assist/monitoring (Except Hybrid) — Collision/avoidance

PRECAUTION

PRECAUTION FOR DISCONNECTING THE BATTERY CABLE NOTE: When disconnecting the negative (-) battery terminal, initialize the following system after the terminal is reconnected. SYSTEM REFERENCE TABLE System Name Information Power Back Door System «INITIALIZATION»(ref-290683-S20539755842008071700000)
EXPRESSIONS OF IGNITION SWITCH The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section. IGNITION SWITCH POSITION TABLE Switch Type Ignition Switch (Position) Engine Switch (Condition) Expression Ignition switch off LOCK Off Ignition switch on (IG) ON On (IG) Ignition switch on (ACC) ACC On (ACC) Engine start START Start

Scheme 22

Scheme 22: PARTS LOCATION

Scheme 23

Scheme 24

Scheme 24: SYSTEM DIAGRAM

REAR VIEW MONITOR SYSTEM

Symptom	Suspected Area	Information
When shift lever is in R position, rear view monitor image is not displayed (Screen is not black)	Reverse signal circuit	REVERSE SIGNAL CIRCUIT
	Proceed to "Display Signal Circuit between Navigation Receiver Assembly and Television Camera Assembly"	DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND TELEVISION CAMERA ASSEMBLY
	Navigation receiver assembly	REMOVAL
When shift lever is in R position, rear view monitor image is not displayed (Screen is black)	Navigation receiver assembly power source circuit	NAVIGATION RECEIVER ASSEMBLY POWER SOURCE CIRCUIT
	Proceed to "Display Signal Circuit between Navigation Receiver Assembly and Television Camera Assembly"	DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND TELEVISION CAMERA ASSEMBLY
	Navigation receiver assembly	REMOVAL
When shift lever is not in R position, rear view monitor image is displayed	Reverse signal circuit	REVERSE SIGNAL CIRCUIT
	Navigation receiver assembly	REMOVAL
Problem with the rear view monitor image (color, disorder of picture)	Proceed to "Display Signal Circuit between Navigation Receiver Assembly and Television Camera Assembly"	DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND TELEVISION CAMERA ASSEMBLY
	Navigation receiver assembly	REMOVAL

PROBLEM SYMPTOMS TABLE

Scheme 25

Scheme 25: TERMINALS OF ECU

Scheme 26

TELEVISION CAMERA ASSEMBLY Disconnect the S1 camera connector. Measure the voltage of each terminal of the wire harness side connector. VOLTAGE SPECIFICATION TABLE Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition S1-3 (CGND) - Body ground W - Body ground Ground Always Below 1 V S1-4 (CB+) - S1-3 (CGND) B-W Power source Ignition switch on (IG), shift lever R position 5.5 to 7 V If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the S1 camera connector. Measure the voltage and frequency of each terminal of the connector. CONNECTOR TERMINAL SPECIFICATION Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition S1-1 (CV-) - S1-2 (CV+) BR - R Display signal Ignition switch on (IG), shift lever R position See 1 waveform 1 If the result is not as specified, the camera may have a malfunction. Reference: Oscilloscope waveform Waveform 1 WAVEFORM REFERENCE TABLE Item Content Measure terminal S1-1 (CV-) - S1-2 (CV+) Measure set 0.2 V/DIV, 0.2 μS/DIV. Condition Ignition switch, on (IG), Shift lever. R position
NAVIGATION RECEIVER ASSEMBLY (See «TERMINALS OF ECU»(ref-290717-S00435378832008071700000) )

PRECAUTION FOR DISCONNECTING THE BATTERY CABLE NOTE: When disconnecting the negative (-) battery terminal, initialize the following system after the terminal is reconnected. SYSTEM REFERENCE TABLE System Name Information Power Back Door System «INITIALIZATION»(ref-290683-S20539755842008071700000)
EXPRESSIONS OF IGNITION SWITCH The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section. IGNITION SWITCH SPECIFICATION TABLE Switch Type Ignition Switch (Position) Engine Switch (Condition) Expression Ignition switch off LOCK Off Ignition switch on (IG) ON On (IG) Ignition switch on (ACC) ACC On (ACC) Engine start START Start

Scheme 27

Scheme 27: PARTS LOCATION

Scheme 28

Scheme 29

Scheme 29: SYSTEM DIAGRAM

Symptom	Suspected Area	Information
When shift lever is in R position, rear view monitor image is not displayed (Screen is not black)	Reverse signal circuit	REVERSE SIGNAL CIRCUIT
	Proceed to "Display Signal Circuit between Clock Assembly and Television Camera Assembly"	DISPLAY SIGNAL CIRCUIT BETWEEN CLOCK ASSEMBLY AND TELEVISION CAMERA ASSEMBLY
	Clock assembly	REMOVAL
When shift lever is in R position, rear view monitor image is not displayed (Screen is black).	Clock assembly power source circuit	POWER SOURCE CIRCUIT
	Proceed to "Display Signal Circuit between Clock Assembly and Television Camera Assembly"	DISPLAY SIGNAL CIRCUIT BETWEEN CLOCK ASSEMBLY AND TELEVISION CAMERA ASSEMBLY
	Clock assembly	REMOVAL
When shift lever is not in R position, rear view monitor image is displayed.	Reverse signal circuit	REVERSE SIGNAL CIRCUIT
	Clock assembly	REMOVAL
Problem with the rear view monitor image (color, disorder of picture)	Proceed to "Display Signal Circuit between Clock Assembly and Television Camera Assembly"	DISPLAY SIGNAL CIRCUIT BETWEEN CLOCK ASSEMBLY AND TELEVISION CAMERA ASSEMBLY
	Clock assembly	REMOVAL

REAR VIEW MONITOR SYMPTOMS TABLE

Scheme 30

Scheme 30: TERMINALS OF ECU

Scheme 31

Scheme 32

TELEVISION CAMERA ASSEMBLY Disconnect the S1 camera connector. Measure the voltage of each terminal of the wire harness side connector. VOLTAGE SPECIFICATION TABLE Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition S1-3 (CGND) - Body ground W - Body ground Ground Always Below 1 V S1-4 (CB+) - S1-3 (CGND) B - W Power source Ignition switch on (IG) Shift lever R position 5.5 to 7 V If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the S1 camera connector. Measure the voltage and frequency of each terminal of the connector. CONNECTOR TERMINAL SPECIFICATION TABLE Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition S1-1 (CV-) - S1-2 (CV+) BR - R Display signal Ignition switch on (IG) Shift lever R position Pulse generation (See 1 waveform 1) If the result is not as specified, the camera may have a malfunction. Reference: Oscilloscope waveform Waveform 1 WAVEFORM REFERENCE TABLE Item Content Measure terminal S1-1 (CV-) - S1-2 (CV+) Measure set 0 2V/DIV, 0 2 μS/DIV Condition Ignition switch on (IG), Shift lever- R position
CLOCK ASSEMBLY (Multi-Information Display) VOLTAGE SPECIFICATION TABLE Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition E11-1 (IG) - E11-5 (GND) P - W-B Ignition switch signal Ignition switch off Below 1 V Ignition switch on (IG) 11 to 14 V E11-2 (REV) - E11-5 (GND) R - W-B Reverse signal Ignition switch on (IG) Shift lever except R position Below 1 V Ignition switch on (IG) Shift lever R position 11 to 14 V E11-4 (CGND) - E11-5 (GND) W - W-B Television camera ground Always Below 1 V E11-5 (GND) - Body ground W-B - Body ground Ground Always Below 1 V E11-6 (+B) - E11-5 (GND) Y - W-B Battery Always 11 to 14 V E11-12 (CA+) - E11-5 (GND) B - W-B Power source to television camera Ignition switch on (IG) Shift lever R position 5.5 to 7 V E11-14 (V+) - E11-5 (GND) R - W-B Television camera display signal (Input) Ignition switch on (IG) Shift lever R position Pulse generation (See 1 waveform 1) E11-15 (V-) - E11-5 (GND) Shielded - W-B Television camera ground (Shielded) Always Below 1 V E11-16 (SGND) - Body ground BR - Body ground Signal ground Always Below 1 V Reference: Oscilloscope waveform Waveform 1 WAVEFORM REFERENCE TABLE Item Content Measure terminal E11-14 (V+) - E11-15 (V-) Measure set 0 2 V/DIV, 0 2 μS/DIV Condition Ignition switch on (IG), Shift lever. R position

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