Rear View Monitor System Reverse Signal Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK VEHICLE SIGNAL (OPERATION CHECK)

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)

REAR VIEW MONITOR SYSTEM - Reverse Signal Circuit


DESCRIPTION

The radio and display receiver assembly receives a reverse signal from the park/neutral position switch assembly*1 or back-up light switch assembly*2.
  1. *1: for Automatic Transmission
  2. *2: for Manual Transmission

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Park Assist Monitoring.Rear View Monitor System.Rear View Monitor System Reverse Signal Circuit


INSPECTION PROCEDURE

1.CHECK VEHICLE SIGNAL (OPERATION CHECK)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50

  1. Enter the "Function Check/Setting I" mode and select "Vehicle Signal" (Toyota Fortuner RM0000043X901RX.html).

  1. Check that the display changes between ON and OFF according to the shift lever position.

    OK:
    Shift Lever Position
    		Display
    R
    		ON
    Except R
    		OFF
    HINT:
    This display is updated once per second. As a result, it is normal for the display to lag behind the actual shift lever position.


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Toyota Fortuner RM000003YLT00CX.html)

2.CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Park Assist Monitoring.Rear View Monitor System.Rear View Monitor System Reverse Signal Circuit

  1. Disconnect the R19 radio and display receiver assembly connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    R19-2 (REV) - Body ground
    		Ignition switch ON, shift lever in R
    		7.5 to 14 V
    R19-2 (REV) - Body ground
    		Ignition switch ON, shift lever not in R
    		Below 1 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Radio and Display Receiver Assembly)
    Result
    Result
    		Proceed to
    OK
    		A
    NG (for Automatic Transmission)
    		B
    NG (for Manual Transmission
    		C


B
Go to step 3

C
Go to step 4
A

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (Toyota Fortuner RM000003OQ9003X.html)

3.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

  1. Disconnect the R19 radio and display receiver assembly connector.

  1. Disconnect the N1 park/neutral position switch assembly connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    R19-2 (REV) - N1-1 (RL)
    		Always
    		Below 1 Ω
    R19-2 (REV) - Body ground
    		Always
    		10 kΩ or higher
    Result
    Result
    		Proceed to
    OK (for A340E)
    		A
    OK (for A340F)
    		B
    OK (for A750E)
    		C
    OK (for A750F)
    		D
    NG
    		E


B
REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (Toyota Fortuner RM0000010NC046X.html)

C
REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (Toyota Fortuner RM0000010NC02JX.html)

D
REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (Toyota Fortuner RM0000010NC00CX.html)

E
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (Toyota Fortuner RM0000010NC02KX.html)

4.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)

  1. Disconnect the R19 radio and display receiver assembly connector.

  1. Disconnect the B1 back-up light switch assembly connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    R19-2 (REV) - B1-1
    		Always
    		Below 1 Ω
    R19-2 (REV) - Body ground
    		Always
    		10 kΩ or higher
    Result
    Result
    		Proceed to
    OK (for R151)
    		A
    OK (for R150F / R151F)
    		B
    OK (for G58F)
    		C
    NG
    		D


B
REPLACE BACK-UP LIGHT SWITCH ASSEMBLY (Toyota Fortuner RM0000011AO005X.html)

C
REPLACE BACK-UP LIGHT SWITCH ASSEMBLY (Toyota Fortuner RM0000010UN005X.html)

D
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

REPLACE BACK-UP LIGHT SWITCH ASSEMBLY (Toyota Fortuner RM0000011AO006X.html)